Abstract

Penicillium, the most common genus plays an important ecological role in various terrestrial and marine environments. However, only a few species have been reported from rhizosphere soil. As part of a project to excavate Korean indigenous fungi, we investigated rhizosphere soil of six plants in the forest (terrestrial habitat) and sand dunes (coastal habitat) and focused on discovering Penicillium species. A total of 64 strains were isolated and identified as 26 Penicillium species in nine sections based on morphological characteristics and the sequence analysis of β-tubulin and calmodulin. Although this is a small-scale study in a limited rhizosphere soil, eight unrecorded species and four potential new species have been identified. In addition, most Penicillium species from rhizosphere soil were unique to each plant. Penicillium halotolerans, P. scabrosum, P. samsonianum, P. jejuense, and P. janczewskii were commonly isolated from rhizosphere soil. Eight Penicillium species, P. aurantioviolaceum, P. bissettii, P. cairnsense, P. halotolerans, P. kananaskense, P. ortum, P. radiatolobatum, and P. verhagenii were recorded for the first time in Korea. Here, we provide the detailed morphological description of these unrecorded species.

摘要

最常见的青霉菌在各种陆地和海洋环境中起着重要的生态作用。然而，据报道根际土壤中只有少数物种。作为发掘韩国本土真菌的项目的一部分，我们调查了森林（陆地生境）和沙丘（沿海生境）中六种植物的根际土壤，并着重于发现青霉菌物种。根据β-微管蛋白和钙调蛋白的形态特征和序列分析，共分离出64个菌株，并在9个切片中鉴定为26个青霉菌属。尽管这是在有限的根际土壤中进行的小规模研究，但已确定了8个未记录的物种和4个潜在的新物种。此外，大多数根际土壤中的青霉菌对每种植物而言都是独特的。青霉halotolerans，P. scabrosum，P. samsonianum，P. jejuense，和P. janczewskii是常见从根际土壤中分离。在韩国首次记录了8个青霉菌种，金黄色葡萄球菌，比塞蒂体育球菌，开塞纳斯体育球菌，卤化体育球菌，卡那那香球菌，角球菌，放射线虫和verhagenii。在这里，我们提供了这些未记录物种的详细形态描述。