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Bioprotection of olive tree from Verticillium wilt by autochthonous endomycorrhizal fungi
Journal of Plant Diseases and Protection ( IF 2 ) Pub Date : 2020-04-21 , DOI: 10.1007/s41348-020-00323-z
Hanane Boutaj , Abdelghani Chakhchar , Abdelilah Meddich , Said Wahbi , Zainab El Alaoui-Talibi , Allal Douira , Abdelkarim Filali-Maltouf , Cherkaoui El Modafar

The present work aimed to assess the efficacy of an arbuscular mycorrhizal fungi consortium “Rhizolive consortium” in alleviating Verticillium wilt symptoms in olive tree. Olive plants cultivar “Picholine Marocaine” were inoculated for three months with Rhizolive consortium and then infected with Verticillium dahliae pathogen. Our results showed that Rhizolive consortium inoculation highly improved mycorrhizal intensity, with dominance of arbuscular type, in the presence of the pathogen. In addition, Rhizolive consortium significantly reduced the dwarfing index and leaf alteration index in olive plants inoculated by V. dahliae. The alleviation potential of Rhizolive consortium was more evident with time. Mycorrhizal colonization reduced the V. dahliae percentage in the roots and stems of olive plants. The study reveals a biostimulation role of Rhizolive consortium by improving root colonization and enhancing disease tolerance in olive tree.

中文翻译:

土生菌根内生真菌对黄萎病橄榄树的生物保护作用

本工作旨在评估丛枝菌根真菌协会“ Rhizolive consortium”在缓解橄榄树黄萎病症状方面的功效。将橄榄植物“ Picholine Marocaine”用根瘤菌联盟接种了三个月,然后感染了黄萎病菌。我们的结果表明,在存在病原体的情况下,接种根瘤菌协会可大大提高菌根强度,并以丛枝型为主。此外,根茎菌群显着降低了由大丽花弧菌接种的橄榄植物中的矮化指数和叶片变化指数。随着时间的流逝,根瘤菌联盟的缓解潜力更加明显。菌根定植减少了大丽花弧菌橄榄植物的根和茎中所占的百分比。这项研究揭示了通过改善根定植和增强橄榄树的抗病性,根瘤菌的生物刺激作用。
更新日期:2020-04-21
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