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Fus3 is a pathogenicity factor of Botryosphaeria dothidea on kiwifruit J. Phytopathol. (IF 1.5) Pub Date : 2024-03-18 Yong Ho Shin, Holger B. Deising, Yong Chull Jeun
The ascomycete fungus Botryosphaeria dothidea is the causal agent of postharvest rot in kiwifruit. Production and spreading of conidia, differentiation of infection hyphae and invasion of intact fruit surfaces are required to cause fruit rot disease. In several pathogenic fungi, the homologue of the Saccharomyces cerevisiae mitogen activated protein kinase (MAPK) gene Fus3 has been identified as a
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First report of root-knot nematode Meloidogyne ethiopica Whitehead, 1968 on kiwifruit Actinidia deliciosa (A. Chev.) C. F. Liang and A. R. Ferguson, 1984 in Türkiye J. Phytopathol. (IF 1.5) Pub Date : 2024-03-18 Anıl Fırat Felek, Faruk Akyazi
Root-knot nematodes (Meloidogyne spp.) cause serious damage to kiwifruit orchards in Türkiye. In summer 2022, during a survey on root-knot nematodes of kiwifruit in Bursa, Rize, and Yalova provinces in the country, many galls in the roots were discovered. A single egg mass was extracted from the infected roots and inoculated to Rutgers tomato and kiwi (Hayward) plants for reproduction as a pure culture
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Virulence profiling of emerging Indian strains of Burkholderia glumae causing panicle blight of rice J. Phytopathol. (IF 1.5) Pub Date : 2024-03-16 Bhaskaran Sreenayana, Kalyan Kumar Mondal, Sanjeev Kumar, Nivetha Mathiyalagan, Mrutyunjaya Shrinivas Reddy, Kalaivanan Nagaranai Shanmugam, Amrutha Lakshmi M, Rashmi Echalukoppa Ratnakara, Chander Mani
Bacterial panicle blight (BPB), incited by Burkholderia glumae, has impacted rice production globally. Despite its significance, little is known about the disease and the virulence pattern of the causal agent. BPB is a major challenge in the rice‐growing belts of North‐western India. We have characterized the 21 BG strains using the 16S rRNA and the gyrB gene‐based sequence approach in the present
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Histological alterations in chilli pepper (Capsicum annuum L.) roots associated with sudden wilt syndrome J. Phytopathol. (IF 1.5) Pub Date : 2024-03-13 Pooja Salaria, Sandeep Jain, Anu Kalia, Anjali
Sudden wilt syndrome of chilli, an emerging and destructive disorder, is characterized by an abrupt appearance that has increased in Indo-Gangetic alluvial plains over the past decade. The primary cause associated with the problem is water stagnation that creates hypoxic conditions in the root zone, and the plant mortality is further aggravated by soil-borne fungi Fusarium oxysporum. The effects of
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Phenotypic and genotypic evaluation of Turkish bread wheat (Triticum aestivum L.) varieties to stripe rust (Puccinia striiformis f.sp. tritici) J. Phytopathol. (IF 1.5) Pub Date : 2024-03-13 Ahmet Cat
Wheat stripe rust, which is caused by the basidiomycetes fungal pathogen Puccinia striiformis f.sp. tritici (Pst), is one of the most destructive diseases of wheat in Türkiye and worldwide. In this study, a total of 99 bread wheat varieties were assessed at the adult plant stage under natural infection conditions during the 2021–2022 and 2022–2023 growing seasons. Additionally, specific molecular markers
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Plant parasitic nematodes on soybean (Glycine max (L) Merr.) in the Metekel zone (Ethiopia) and varietal resistance evaluation to Meloidogyne javanica J. Phytopathol. (IF 1.5) Pub Date : 2024-03-13 Frezer A. Adamu, Wakuma B. Hundessa, Sihen Getachew, Abebe W. Aseffa, Beira H. Meressa
Plant parasitic nematodes cause severe damage to soybean crops, leading to substantial losses in yield and quality. However, more information is needed regarding the occurrence, distribution and damage status of soybean PPNs in Ethiopia. A total of 180 samples of rhizosphere and roots were collected randomly from three major soybean‐producing districts of Metekel Zone. Nematodes were extracted and
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First report of Trichothecium roseum causing pink mould on strawberry fruit in Iran J. Phytopathol. (IF 1.5) Pub Date : 2024-03-06 Fatemeh Maghsoodi, Parissa Taheri, Saeed Tarighi
Strawberry (Fragaria × ananassa) is one of the most important fruit crops, worldwide. In June 2023, strawberry fruits with pink mould symptoms were collected from a storage facility in Khorasan Razavi province of Iran. Trichothecium roseum was isolated from symptomatic fruit and identified through morphological characteristics. Molecular identification was carried out based on the internal transcribed
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Research on soil‐borne diseases of ginseng due to root exudates J. Phytopathol. (IF 1.5) Pub Date : 2024-03-06 Sen Jia, Shiyou Yang
In a monocropping pattern for the crop domestication process, the interspecific and intraspecific interaction modes can be changed. In domesticated crops, the intraspecific interactions may have detrimental effects. Moreover, soil‐borne diseases in consecutive monocropped medicinal crops can be a critical challenge that has been difficult to solve. This study has been conducted to evaluate the effect
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Distribution and diversity of emergent Banana bunchy top virus infecting banana and plantain in Cameroon, Central Africa J. Phytopathol. (IF 1.5) Pub Date : 2024-03-06 Sergine Ngatat, Rachid Hanna, Armand R. P. Doumtsop Fotio, Jules A. Lienou, Samuel Nanga Nanga, Apollin Fotso Kuate, Bolaji Osundahunsi, Komi K. M. Fiaboe, Bertrand Ndemba, Gerbert S. Dossa, Tunrayo Alabi, P. Lava Kumar
Invasions of arthropod vectors and viruses are the main factors associated with emerging plant viral diseases. The presence of the Banana bunchy top virus (BBTV, genus Babuvirus), an aphid‐transmitted virus responsible for the banana bunchy top disease (BBTD), was first confirmed in 2008 in the South region of Cameroon. This study reports on surveys over 14 years to determine the status of BBTV spread
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Colletotrichum siamense is associated with post‐harvest anthracnose of red onion in the Philippines J. Phytopathol. (IF 1.5) Pub Date : 2024-03-06 Deborah Anne Dimayacyac, Mark Angelo Balendres
Onion (Allium cepa L.) is an important crop widely cultivated in the Philippines. In the Philippines, Colletotrichum gloeosporioides sensu lato and C. circinans have been reported to cause anthracnose twister disease and onion smudge, respectively. This study reports C. siamense from anthracnose‐infected onion bulbs. The fungus was identified using morpho‐cultural characterization and multi‐locus analyses
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Lesson from the emergence, spread and decline of Dickeya solani, the virulent potato blackleg and soft rot bacterial pathogen in Finland J. Phytopathol. (IF 1.5) Pub Date : 2024-03-06 Yeshitila Degefu
The threat of emerging plant diseases has become more frequent as global warming and international trade are increasing. Blackleg and soft rot of potatoes caused by the group of bacteria in the family Pectobacteriaceae and the genera Dickeya and Pectobacterium are important diseases causing economic losses globally. In the European Union, they are regulated non‐quarantine pests. Five species are commonly
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First report of Fusarium redolens causing root rot of Goji berry cv. ‘Ningqi‐7’ in China J. Phytopathol. (IF 1.5) Pub Date : 2024-03-06 C. Y. Xu, H. H. Gao, Q. Han, C. B. Jia, B. Swingle, M. Gao, J. Y. Su
Goji berry is an important cash crop of the Ningxia Hui Autonomous Region of China. In the summer of 2019 and 2020, a root rot outbreak appeared in Zhongning County Ningxia Hui Autonomous Region. The correct identification of the causal agent is very important for prevention and cure of this root rot disease. The rotten root samples of symptomatic trees were dug for strain isolation using tissues separation
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Molecular detection of ‘Candidatus phytoplasma aurantifolia’ associated with virescence and phyllody of Zinnia peruviana: A new record for India J. Phytopathol. (IF 1.5) Pub Date : 2024-03-06 S. Mahadevakumar, P. V. S. R. N. Sarma, C. Danteswari, Josna Joy, S. Chandranayaka, T. S. S. K. Patro
Zinnia peruviana (Asteraceae) is an annual flowering plant cultivated in various gardens of Mysore, the south of Karnataka state, India. During 2021, phytoplasma‐like symptoms such as virescence and phyllody were observed on Zinnia in Mysore local gardens. A total of 10 symptomatic and five asymptomatic samples were collected, and the DNA was amplified by PCR using primers specific to 16S RNA and secA
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Characterization and report of binucleate Rhizoctonia AG-Fb affecting soybean in Brazil J. Phytopathol. (IF 1.5) Pub Date : 2024-02-14 Suelen Cappellaro, Jaqueline Huzar-Novakowiski, José Luis Trevizan Chiomento, Eliane Mayumi Inokuti
Rhizoctonia root rot is a disease that can affect soybean leading to plant death usually in bare patches. Frequently, Rhizoctonia solani has been reported as the main causal agent of the disease. However, due to the great genetic diversity of the genus Rhizoctonia, there are other species that could also attack soybean plants. Thus, the objective of this study was to determine the pathogenicity and
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Pantoea vagans causing soft rot disease in Agave angustifolia, in Mexico J. Phytopathol. (IF 1.5) Pub Date : 2024-02-11 Nadia Denisse Rodríguez Velázquez, Guadalupe Osiris Pérez Pérez, Gustavo Vergara Arellano, Paulina Estrada de los Santos, Jose Silvestre Mendoza Figueroa, Belén Chávez-Ramírez
In Mexico, agave (Agave angustifolia Haw.) crops stand out regionally due to their socioeconomic, agroecological and cultural importance. It is the most important raw material in the elaboration of two relevant alcoholic beverages: tequila and mezcal. Nevertheless, this crop is susceptible to phytopathological threats mainly fungi and bacteria, both having a massive impact in yearly production. In
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Isolation, identification, and characterization of Pectobacterium actinidiae isolated from infected sugar beet leaves J. Phytopathol. (IF 1.5) Pub Date : 2024-02-11 Murat Öztürk
During the sugar beet growing seasons of 2019 and 2020, symptomatic leaf samples displaying necrotic spots were collected for the isolation of pectinolytic bacteria. Seven bacterial isolates were obtained from these infected leaves on crystal violet pectate (CVP) medium. Two of these isolates exhibited the ability to macerate potato tuber slices and induced disease symptoms on petioles of sugar beet
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Molecular characterization of mungbean yellow mosaic India virus infecting Vigna radiata in Oman J. Phytopathol. (IF 1.5) Pub Date : 2024-01-31 Muhammad Shafiq Shahid, Abdullah Mohammed Al-Sadi
The full-genome sequences of a bipartite begomovirus were identified in a mungbean (Vigna radiata) crop displaying symptoms such as yellow mosaics and stunting in the Al-Batinah North region (23.6867° N 57.9058° E), Oman. Initial detection and confirmation of the virus genome were carried out through polymerase chain reaction, followed by obtaining complete genomes using rolling circle amplification
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A decade of monitoring surveys for Xylella fastidiosa subsp. pauca in olive groves in Apulia (Italy) reveals a low incidence of the bacterium in the demarcated areas J. Phytopathol. (IF 1.5) Pub Date : 2024-01-31 Margherita Ciervo, Marco Scortichini
In October 2013, Xylella fastidiosa subsp. pauca (Xfp) was reported as being associated with a decline of olive groves in Salento (Apulia, Italy) and named as “olive quick decline syndrome” (OQDS). Due to its quarantine status, a series of mandatory actions were established in the Apulia region to impede its further spread in the territory. Upon the demarcation of “containment” and “buffer” zones,
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The race distribution of the Fulvia fulva populations and mutations in the Avr genes in Turkey J. Phytopathol. (IF 1.5) Pub Date : 2024-01-31 Esra Gül, Aziz Karakaya, Ali Ergül
Tomato leaf mould caused by Fulvia fulva (syn. Cladosporium fulvum, Passalora fulva) is an especially important disease of greenhouse grown tomato. In this study, F. fulva isolates were obtained from Antalya, Muğla, Mersin, Burdur, Bartın, and Zonguldak provinces of Turkey. Pathogenicity tests were carried out with 47 isolates using a differential set of tomato varieties containing Cf-2, Cf-4, Cf-5
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Hydroalcoholic extract: A potential source from Azadirachta indica a Juss flower for DNA and BSA binding, scavenging, fungicidal, and larvicidal activities J. Phytopathol. (IF 1.5) Pub Date : 2024-01-23 Palanivelmurugan Mohanasundaram, Sudha Sankaran, Dhamodiran Mathivanan, Chinnaperumal Kamaraj, Antoneyraj Mary Saral
The present study focuses on the evaluation of the DNA and BSA binding capability, anti-fungal, metal chelation, and larvicidal activity of extracts of Azadirachta indica A Juss flower. The different extracts of A. indica was prepared by soxhlet extraction using Petroleum Ether (PE), acetone (AC), and hydroalcohol (HA) as solvents. DNA and BSA binding ability of HA extract was calculated through the
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Pathogenicity of rice blast isolates (Pyricularia oryzae) in irrigated lowland of Bangladesh J. Phytopathol. (IF 1.5) Pub Date : 2024-01-23 Quazi Mostaque Mahmud, Md. Rejwan Bhuiyan, Md. Motaher Hossain, Nur Ausraf, Md. Shahid Islam, Md. Hasibur Rahaman Hera, Md. Mamunur Rashid, Md. Abdul Mannan Akanda, M. Mofazzal Hossain, Md. Tajul Islam Chowdhury, Md. Abdul Latif, Mitsuhiro Obara, Yoshimichi Fukuta, Mohammad Ashik Iqbal Khan
Rice blast poses a significant threat to food security in Bangladesh, particularly in irrigated lowland (boro rice), which constitutes over 50% of the country's total rice production. While using resistant varieties is an effective method to control rice blast, developing durable resistance is challenged by the pathogen's high variability. To address this, the current study examined the distribution
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Transcriptional alterations of the resistant potato genotype ‘Cruza 148’ in response to Ralstonia solanacearum infection J. Phytopathol. (IF 1.5) Pub Date : 2024-01-19 Lilian A. Okiro, Richard M. Mulwa, Maurice E. Oyoo, Thiago Mendes
Ralstonia solanacearum, a highly destructive phytopathogen causing bacterial wilt disease, poses a substantial risk to the potato value chain, putting global food security at risk and impeding potato production. ‘Cruza 148’, a locally adapted potato genotype, has been reported to exhibit resistance when cultivated in areas with a background of bacterial wilt occurrences. This study aimed to acquire
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Colletotrichum siamense is responsible for anthracnose on Hymenaea stigonocarpa in Brazil J. Phytopathol. (IF 1.5) Pub Date : 2024-01-08 Kelliene R. Silva, Willie A. S. Vieira, Marcos P. S. Câmara, Vinson P. Doyle, Marcos Giongo, Manoel M. Santos, Raimundo Wagner S. Aguiar, Cristiano B. Moraes, Carlos A. Inácio, Alex Sander R. Cangussu, Gil R. Santos
Hymenaea stigonocarpa, popularly known as ‘jatobá’ or ‘jatobá-do-cerrado’, is a native plant widely distributed across Brazilian Cerrado areas. This plant is used for urban afforestation, human and animal feeding, and industry. Foliar lesions resembling anthracnose symptoms were observed on H. stigonocarpa in natural habitats and nurseries. Microscopic examination of acervuli indicated a Colletotrichum
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Insights into the complexities of fungus-insect-plant interaction: The laurel wilt disease J. Phytopathol. (IF 1.5) Pub Date : 2024-01-08 Khaled Abdrabo El-Sayid Abdrabo, Guan Jie Phang, Silmi Yusri Rahmadani, Yin-Tse Huang
Laurel wilt disease, caused by the fungus Harringtonia lauricola and transmitted by the ambrosia beetle Xyleborus glabratus, poses a significant ecological and economic threat to various species of the Lauraceae family, particularly avocado. The disease is characterized by the formation of tyloses blocking xylem vessels, hindering water conductance, and decreasing leaf gas exchange. The relationship
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Binucleate Rhizoctonia AG-A causing black root rot of strawberry in Albania J. Phytopathol. (IF 1.5) Pub Date : 2024-01-08 Magdalena Cara, Jordan Merkuri, Alkida Salliu, Mira Vojvodić, Isidora Knežević, Miljan Grkinić, Aleksandra Bulajić
Strawberry production in Albania is very important and growing rapidly, while data on strawberry diseases are lacking. In 2022, symptoms of leaf necrosis, root rot, and wilt were observed on strawberry plants of cultivars ‘Savana’, ‘Sabrina’, and ‘Fortuna’ in greenhouses near Vajkan, Fier, Albania. The disease incidence was estimated at 50%. Only isolates of Rhizoctonia spp. were obtained from symptomatic
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Natural occurrence of cucumber mosaic virus infecting Adenium obesum plants in Brazil J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 Vinicius Henrique Bello, Larissa Carpim, Valdir Atsushi Yuki, José Evando Aguiar Beserra Júnior, Tatsuya Nagata, Jorge Alberto Marques Rezende, Elliot Watanabe Kitajima
In 2022, virus-like symptoms were observed in Adenium obesum plants in Brazil. High-throughput sequencing analysis found three contig sequences of cucumber mosaic virus (CMV) genome segments, which were of 3352, 3006 and 2221 nucleotides, and shared 98.59%, 95.02% and 98.05% nucleotide identities with the nucleotide sequences of CMV RNAs 1, 2 and 3, respectively. Phylogenetic analysis of the coat protein
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Differential expression and gene correlation analyses reveal core CAZymes in Fusarium oxysporum f.sp. lycopersici exposed to mutagen and heat stress J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 Abhijeet Roy, Barsha Kalita, Raja Rajeswary Thanmalagan, Annamalai Arunachalam, Lakshmi PTV
Fusarium oxysporum f.sp. lycopersici is the casual organism of tomato wilt disease which is a devastating plant pathogen responsible for annual loss of this fruit crop. An important step in fungal growth and development is germination, that is transformation of dormant spores into a growing hypha. For this, a set of special type of enzymes known as CAZymes are required for construction and remodelling
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Sweet resistance against botrytis grey mould in chickpea J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 S. Maurya, A. Arora, A. Chauhan, L. B. Yadav, S. K. Verma, R. K. Panwar
Despite significant nutritional value and vast expanse under chickpea cultivation, fungi-borne diseases are the main limiting factors to increasing its yield. Botrytis grey mould (BGM) is a major foliar disease knocking chickpeas sideways. Thus, to compensate for economic yield loss, BGM-resistant lines must be fished through an effective screening technique. In the present study, carbohydrates, mainly
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Involvement of Phytophthora citrophthora and Phytophthora nicotianae in severe decline and gummosis of grapefruit (Citrus x paradisi Macfad.) in southern Türkiye J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 İlker Kurbetli
Since the summer of 2020, severe decline and gummosis were observed on 20- to 30-year-old grapefruit trees cv. Star Ruby in Antalya province in the Western Mediterranean region of Türkiye. Grapefruit trees were examined in affected commercial orchards in Aksu, Manavgat, Muratpaşa and Serik counties, located near the coast of the Mediterranean Sea. Symptomatic trees exhibited leaf discoloration, defoliation
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Molecular characterizations of Verticillium dahliae isolates from grafted tomatoes grown in Antalya province of Türkiye J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 Hasan Akar, Ahmet Cat, Mursel Catal
Verticillium wilt caused by soil-borne fungus Verticillium dahliae results in serious quality, yield and economic losses in tomato fruit production in tomato-growing areas around the world. In this study, V. dahliae isolates obtained from six different major grafted tomato production areas in Antalya province of Türkiye were characterized for races, pathotypes and vegetative compatibility groups using
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Polyethylene glycol–mediated genetic transformation and fluorescent labelling of Colletotrichum sublineola for studying sorghum anthracnose pathogenicity J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 Siyu Li, Songshu Chen, Zheng Tai, Lingfeng Luo, Ling Jiang, Fen Wang, Xin Xie
Anthracnose, a disease primarily caused by the fungus Colletotrichum sublineola, affects sorghum production in China. However, the infection mechanisms and complex host interactions of C. sublineola remain to be elucidated. Thus, this study aimed to establish and optimize a protoplast transformation system of C. sublineola so as to lay a foundation for further research on the infection mechanisms and
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Neopestalotiopsis iberica induces leaf spots on Synsepalum dulcificum in China J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 Li-Qian You, Indunil C. Senanayake, Jia-wei Liu, Mei Luo, Ying-hua Huang, Zhang-Yong Dong
Synsepalum dulcificum is one of the well-known edible and ornamental plants with its unique flavour changing function of sour taste. In 2021, a new leaf spot disease was observed on S. dulcificum during a field survey in Guangzhou City, Guangdong Province, China. The pathogen was isolated and identified using morphological examination and phylogeny based on multi-gene sequences analysis of the nuclear
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Fusarium species causing root rot and wilt in tomato in Brazil J. Phytopathol. (IF 1.5) Pub Date : 2024-01-03 Robinson Severo, Leandro Jun Soki Shibutani, Gilvan Ferreira da Silva, Sarah da Silva Costa Guimarães, Francisco de Alcântara Neto, José Evando Aguiar Beserra, José Fábio Ferreira de Souza, Maruzanete Pereira de Melo
A high frequency of plants showing symptoms of wilting and root rot has been observed in tomato-producing areas in Santarém and Belterra, Pará, Brazil. These plants showed symptoms ranging from yellowing to wilting, with roots displaying reduced development and darkening of the xylem. Four fungal isolates, derived from a collection of 12 obtained from symptomatic plants, were chosen for identification
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Development of genomic SSR markers and genetic diversity of Sphaerulina musiva in China J. Phytopathol. (IF 1.5) Pub Date : 2023-12-13 Tengjiao Ma, Yanhong Hu, Fanggong Li, Longchang Liu, Linkai Cui
Sphaerulina musiva is an important poplar pathogenic fungus that causes leaf spot and stem canker. SSR markers serve as excellent molecular markers for assessing genetic diversity in fungi. To date, few SSR markers have been developed and applied in S. musiva. In this study, genomic-SSR markers were developed from the S. musiva genome, and applied to analyse the genetic diversity of S. musiva isolates
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Genetic diversity and pathogenicity of fungi associated with rice sheath rot in the Fogera plain, Northwest Ethiopia J. Phytopathol. (IF 1.5) Pub Date : 2023-12-09 Tilahun Gizaw, Workie Anley Zegeye, Nigatu Hika, Alemu Degwale, Adigo Setargie, Mesfin Tsegaw
Sheath rot is a widespread rice disease that affects rice crops worldwide. It is particularly prevalent in Ethiopia, with the Fogera plains exhibiting the highest incidence and severity. However, the lack of reliable molecular-level identification of rice fungal pathogens in Ethiopia has hindered the development of effective management practices. This study aimed to assess the diversity of fungal agents
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Protective role of agarwood essential oil and compounds thereof in crop-associated fungal pathogens J. Phytopathol. (IF 1.5) Pub Date : 2023-12-08 Jing Liu, Nuojin Cheng, Yuan Li, Xingtao Jiang, Qi Luo, Zehong Wu
The potential risk of fungal pathogen infection in agriculture has great adverse effects on agricultural development and human health. In this study, we explored the application of agarwood essential oil (AEO) and its main components in the development of agricultural fungicides. The compositions of AEO produced in Maoming City of Guangdong Province, China was firstly analysed by GC–MS. AEO and compounds
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Identification of resistant cowpea genotypes and aggressiveness of Macrophomina phaseolina isolates by diallel analysis J. Phytopathol. (IF 1.5) Pub Date : 2023-12-05 Pedro Ivo Silvestre Siqueira e Silva, Francisco Álef Carlos Pinto, Antonio Elton da Silva Costa, Jane Clésia Silva dos Santos, Ana Beatriz Joy Maciel Valdevino, Jeronimo Constantino Borel, Francine Hiromi Ishikawa
Cowpea is grown in semiarid regions of Brazil. However, the occurrence of diseases, such as charcoal rot, is one of the main limiting factors to production. Disease is caused by the fungus Macrophomina spp., one of the most important plant pathogens in semiarid conditions. The use of resistant cultivars is the most effective method to control this disease. The objective of this study was to evaluate
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Performance of biological and chemical nematicides in different soils to control Meloidogyne incognita in tomato plants J. Phytopathol. (IF 1.5) Pub Date : 2023-11-30 Angelo Loffredo, Scott Edwards, Antoon Ploeg, J. Ole Becker
Three fluorinated, one carbamate nematicide, as well as two biological control agents were tested in greenhouse trials to determine their efficacy against Meloidogyne incognita on tomato plants in three different soils. Each soil was treated with one of the following chemical nematicides at the labelled rate: fluensulfone, fluopyram, fluazaindolizine, and oxamyl. The biocontrol agents used were Metacordyceps
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Phenotypic response of a core collection of Aegilops triuncialis accessions to wheat leaf rust and expression pattern of genes involved in resistance J. Phytopathol. (IF 1.5) Pub Date : 2023-11-23 Marzieh Sadat Hosseini, Behnam Davoudnia, Ali Dadkhodaie, Bahram Heidari
Leaf rust caused by Puccinia triticina Eriks. is a serious threat to wheat production worldwide. Exploiting wild relatives can effectively help to improve the genetic resistance of wheat against rust. This study aimed to evaluate the responses of 34 Aegilops triuncialis accessions to seven Pt pathotypes and to analyse expression of genes associated with resistance at the seedling stage. Following multipathotype
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Pathogenicity-related long non-coding natural antisense transcripts in Verticillium dahliae during infections in cotton J. Phytopathol. (IF 1.5) Pub Date : 2023-11-22 Ran Li, Huishan Xue, Xiyue Ma, He Zhu, Yue Li, Xiaofeng Dai, Jie-yin Chen
Long non-coding RNAs (lncRNAs) are non-coding RNAs with a length of more than 200 nucleotides. LncRNAs are functional factors involved in various biological processes at the transcriptional, post-transcriptional and epigenetic regulation, which have been widely studied in animals and plants, but less in fungi. In our previous research, 352 Verticillium dahliae lncRNAs were identified by high-throughput
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Diaporthe melongenae sp. nov, a new fungal species causing leaf blight in eggplant J. Phytopathol. (IF 1.5) Pub Date : 2023-11-21 Herbert Dustin Aumentado, Mark Angelo Balendres
Eggplant is a vegetable crop of the Solanaceae family. In November 2021, leaf blights of eggplant were observed from an eggplant field with an approximate disease incidence of 10%–30% in Cavite, Philippines. The infected leaves had typical symptoms of Phomopsis blight disease. Two fungal isolates were obtained, and morphological characteristics resemble those of a Diaporthe species. Based on the combined
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First report of coffee leaf spot caused by Curvularia geniculata J. Phytopathol. (IF 1.5) Pub Date : 2023-11-14 Hyo Song Nam, Hyeon-Seok Park, Young Cheol Kim
During May and June 2021, the commercially grown coffee, variety SL34, grown commercially, developed necrotic, irregularly shaped spots on 1–5% of leaves. These plants were under greenhouse culture in the area of Goheung in South Korea (34°47′N, 127°46′E). The leaf spots, often observed at leaf margins, changed with time from reddish-brown coloration to dark brown lesions with yellow halos. Morphological
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Identification and fungicide sensitivity of Alternaria tenuissima causing leaf spot of Tetrapanax papyrifer newly reported in China J. Phytopathol. (IF 1.5) Pub Date : 2023-11-12 Xian-Ying Tang, Rui Ban, Xue-Ping Wu, Hong-Tao Li, Khadija Javed, Li-Juan Peng, Hai-Xia Ding
Tetrapanax papyrifer, the rice-paper plant, is an evergreen shrub and is traditionally used as a herbal medicine in China. In October 2021, a serious leaf spot disease was extensively observed on T. papyrifer in Guizhou, China. Given the limited information available about the aetiology of this disease, isolations were performed, the morphological characteristics and multi-locus phylogenetic analysis
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Report of Phytophthora capsici (mating type A1) isolates associated with crown-rot disease of Capsicum annuum in Guatemala J. Phytopathol. (IF 1.5) Pub Date : 2023-11-10 Débora Gonçalves-Pereira, Maria Esther N. Fonseca, Leonardo S. Boiteux, Josiene S. Veloso, Maria Geane Fontes, Alvaro Javier Rodas Sierra, Cherry Relevante-Belagantol, Ailton Reis
Wilting and crown-rot symptoms were observed in sweet pepper (Capsicum annuum) plants in field surveys carried out in 2021 across major vegetable-producing areas of three municipalities of Guatemala. Phytophthora capsici (Peronosporales, Peronosporaceae) isolates were identified in association with these symptoms based upon morphological and phylogenetic analyses using nucleotide sequence information
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Biological and molecular characterization of bidens mosaic virus infecting patchouli (Pogostemon cablin) in Brazil J. Phytopathol. (IF 1.5) Pub Date : 2023-11-08 Caroline da Cruz Martines, Gabriel Madoglio Favara, Julio Massaharu Marubayashi, Leonardo Hipólito Dovigo, Angélica Maria Nogueira, Elliot Watanabe Kitajima, Renate Krause-Sakate
Six patchouli (Pogostemon cablin Benth.) plants showing symptoms of viral infection were found in Brazil. Transmission electron microscopy revealed flexuous particles and characteristic pinwheel-shaped cytoplasmic inclusions of potyvirus in sap and cells of symptomatic leaves. Potyvirus infection was confirmed through RT-PCR, using universal primers followed by nucleotide sequencing. The obtained sequences
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Sensitivity of tomato leaf mould–causing Fulvia fulva to seven succinate dehydrogenase inhibitor (SDHI) fungicides in Nara Prefecture, Japan and high efficacy of isofetamid in controlling SDHI-resistant isolates J. Phytopathol. (IF 1.5) Pub Date : 2023-11-02 Shunsuke Asano, Kandai Yoshida, Yoshihiko Hirayama
Leaf mould caused by Fulvia fulva is a major disease of tomato in Japan. Resistance to several types of fungicides, including succinate dehydrogenase inhibitors (SDHIs), has been reported in isolates from Japan. In this study, we evaluated the sensitivity of F. fulva to SDHI fungicides, SDHI fungicide efficacy in controlling sensitive and resistant isolates, and the presence of mutations in the Sdh
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Geographical distribution and molecular characterization of tomato leaf curl and its vector across the Himalayan foothills in Uttarakhand, India J. Phytopathol. (IF 1.5) Pub Date : 2023-10-31 Gaurav Rakhonde, K. P. Singh, T. Aravind, Kumari Surbhi, Himani Jeena, Pooja Bhatt
Tomato leaf curl disease is a serious constraint to tomato cultivation across the globe. The disease is characterized by leaf curling, crinkling, stunting and puckering with the drastic reduction in plant growth and yield. During two-year survey in major tomato-growing belt of Tarai region located in foothills of Himalayas in Uttarakhand, India, the mean incidence and per cent disease index of the
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Occurrence of wilt disease caused by Fusarium proliferatum on carnation in Türkiye J. Phytopathol. (IF 1.5) Pub Date : 2023-10-31 Ceren Cer, Seher Benlioglu
During the survey in greenhouse-cut flower carnation (Dianthus caryophyllus L.) areas in Izmir, wilted carnation samples were collected from 92 greenhouses. A total of 95 Fusarium spp. isolates were obtained from carnation greenhouses, 80 had been identified as Fusarium oxysporum f.sp. dianthi and published earlier, while the remaining 15 were identified as Fusarium proliferatum (Fp) based on morphological
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First report of Diaporthe caryae causing stem blight of chilli pepper (Capsicum frutescens L.) in China J. Phytopathol. (IF 1.5) Pub Date : 2023-10-31 Qi-Han Zhu, Jian-Peng He, Shu-Yuan Cheng, Xin-En Yuan, Bing Liu, Shui-Lin Song, Jun-Xi Jiang, Gui-Hong Xiong
Chilli pepper is one of the most important and widely cultivated pepper types in China. It has high nutritional and economic value. Capsicum frutescens L. is one of the chilli pepper types in production. In October 2022, a new disease showing blight of the entire chilli pepper plant was observed in Nanchang City, Jiangxi Province. The fungal isolates consistently obtained from the diseased samples
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Mycolytic effect and underlying mechanism of Chaetomium subaffine LB-1 on phytopathogenic fungi via morphological, physio-biochemical and transcriptomic analysis J. Phytopathol. (IF 1.5) Pub Date : 2023-10-27 Caiyun Liu, Shihong Kan, Huicheng Zhou, Huan Zhang, Zhilong Chang
Chaetomium subaffine LB-1 is a biocontrol strain screened by our laboratory. Mycolytic effect and its action mechanism was researched in this study with Botrytis cinerea and Alternaria solani as test phytopathogenic fungi. Microscopic observation found that hyphae of the test fungi exhibited vacuolated and flocculent when cultured in LB-1 culture filtrate for 48 h. Physio-biochemical detection indicated
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Development of a colorimetric loop-mediated isothermal amplification (LAMP) assay to facilitate monitoring of carbendazim-resistant isolates of Colletotrichum truncatum based on the β-tubulin E198A mutation J. Phytopathol. (IF 1.5) Pub Date : 2023-10-26 Teeranai Poti, Sarunya Nalumpang, Kazuya Akimitsu
Anthracnose, a disease mainly caused by Colletotrichum truncatum, is a serious threat to vegetable soybean production worldwide. Carbendazim, a methyl-benzimidazole carbamate fungicide, has been frequently applied to control the disease. Unfortunately, carbendazim-resistant isolates of C. truncatum have emerged, resulting in inefficient disease control. Therefore, a rapid and simple method for monitoring
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First report of leaf spot caused by Canariomyces microsporus in hulless barley in China J. Phytopathol. (IF 1.5) Pub Date : 2023-10-24 J. Q. Ma, G. S. Bao, S. Y. Meng, Q. P. Zhou
From September 2021 to September 2022, leaf spots appeared in hulless barley seedlings in the experimental field of Qinghai University (36°62′ N, 101°77′ E) with an incidence of 35%–60%. In this study, four diseased samples were collected from different experimental sites at Qinghai University for analysis. Moreover, four strains with the same colony and microscopic morphology were isolated. A representative
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First report of Neopestalotiopsis clavispora causing foliar disease of rubber (Hevea brasiliensis) in the Philippines J. Phytopathol. (IF 1.5) Pub Date : 2023-10-24 Tamie C. Solpot, Jill D. Villanueva, Meynard P. Abello, John Benrich M. Zuñiga
In September 2022, a leaf spot disease, which later coalesce and result into leaf defoliation of rubber was observed in Tungawan, Zamboanga Sibugay, Philippines. Morpho-cultural and molecular characterization identified the pathogen as Neopestalotiopsis clavispora. Koch's postulates were fulfilled confirming its pathogenicity to rubber seedlings. To the best of our knowledge, this is the first report
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Selectivity of chemical and biological foliar treatments on the phyllosphere communities of bacteria and fungi antagonistic to Fusarium verticillioides in maize J. Phytopathol. (IF 1.5) Pub Date : 2023-10-21 Paul Esteban Pherez Perrony, Rafaela Araújo Guimarães, Luisa Oliveira Reis, Larissa Bitencourt Gomes, Leonardo José da Silva, César Murilo de Albuquerque Correa, Júlio Carlos Pereira da Silva, Flávio Henrique Vasconcelos de Medeiros
Maize grain production in the tropics is affected by Fusarium verticillioides, leading to significant losses in yield and quality. Fungicides are commonly used to control foliar diseases and increase grain yield, but have limited efficacy against F. verticillioides and may even stimulate the fungus to produce mycotoxins. Biocontrol can reduce F. verticillioides populations and fumonisin, but little
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Promoting resilience in ginger: Elicitor-driven strategies to combat the rhizome rot disease J. Phytopathol. (IF 1.5) Pub Date : 2023-10-17 T. S. Archana, R. K. Mesta, M. P. Basavarajappa, K. C. Kiran Kumar
Ginger rhizome rot is one of the most important diseases brought about by the interaction of various pathogens. The present study revealed the association of Pythium aphanidermatum, Fusarium oxysporum, Fusarium solani, Sclerotium rolfsii, Ralstonia solanacearum and Meloidogyne hapla causing the rhizome rot of ginger. The use of specific primers revealed the species-level identification of the pathogen
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Effect of host genotype on biocontrol of white root rot in Pyrus communis L. rootstocks by Trichoderma harzianum and Bacillus spp. J. Phytopathol. (IF 1.5) Pub Date : 2023-10-16 Hossein Golafrouz, Naser Safaie, Fatemeh Khelghatibana, Paul H. Goodwin, Ali Rezaei
A collection of Bacillus and Trichoderma isolates from Iran was investigated for the biological control of pear white root rot caused by Rosellinia necatrix. Among the isolates, B. amyloliquefaciens AP4, B. siamensis AP8 and T. harzianum T20a were selected based on their growth inhibition of R. necatrix in dual cultures, as well as by volatiles, diffusible extracts and culture filtrates. Four pear
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Spatial distribution and association of biophysical factors with chickpea chlorotic stunt and pea seed-borne mosaic viruses affecting legume crops in Ethiopia J. Phytopathol. (IF 1.5) Pub Date : 2023-10-14 Anteneh Ademe, Safaa G. Kumari, Tesfaye Alemu, Adane Abraham, Yetsedaw Aynewa, Abdulrahman Moukahel, Demsachew Guadie, Seid Ahmed
Food legumes are key commodities produced in sole and mixed cropping system in Ethiopia. Their productivity has been affected recently by virus infections. Field surveys were conducted from 2018/19 to 2021/22 cropping seasons in the highlands of Ethiopia to identify major viruses and determine how biophysical factors affect disease incidence. A total of 2797 samples of chickpea (755), lentil (1683)
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New Melastomataceae hosts of Chrysoporthe species in Brazil J. Phytopathol. (IF 1.5) Pub Date : 2023-10-09 Gabrielle A. Silva, Silvino I. Moreira, Maria A. Ferreira
The angiosperm Melastomataceae family is one of the most abundant plant families worldwide and in the Brazilian cerrado, with significant environmental importance in regenerating degraded areas, especially those previously occupied by pastures. Recently, Chrysoporthe Gryzenhout & M. J. Wingf. species were reported in Brazil, causing canker, branch dieback, and mortality in native Melastomataceae. This
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Characterization of Alternaria alternata isolates from different citrus species grown in Tunisian Cap Bon peninsula J. Phytopathol. (IF 1.5) Pub Date : 2023-10-07 Grati Affes Taycir, Yeddes Walid, Rguez Safa, Aidi Wannes Wissem, HammAmi Majdi, Lasram Salma, Chenenaoui Synda, Khammessi Saber, Sarra Bachkouel, Nasraoui Bouzid, Saidani Tounsi Moufida
The prospection of citrus trees affected by Alternaria alternata in Tunisian Cap Bon peninsula for 2 years, 2018 and 2019, showed a variation in the percentage of isolation frequency depending on the region, age of citrus trees and citrus species and varieties. Thirty isolates of A. alternata from citrus species were characterized and studied for their variability. The isolates were subjected to morphological