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-Abstract
SYMMARY
Two fungal isolates from commercial sugar beet phyllospher in Kafr-Elshaikh governorate, Egypt were tested for its antagonistic activity against Cercospora beticola the causal pathogen of sugar beet cercosporia leaf spot (CLS) disease in vitro.
Three methods were used to evaluate its antagonistic activity (Conventionalstreak, culture filtrates and volatile gases). The ability of the tested isolates to produce PR-proteins and growth-promoter indole acetic acid were studied. The tested isolates Emericella nidulans (Aspergillus nidulans) and Epicoccum nigrum found to have the potential to produce chitinase and β-1, 3 glucanase while Emericella nidulansthe only found to have the potential to produce indole acetic acid (IAA). The tested fungal isolates showed a remarkable antagonistic activity in both green-house and open field against C. beticola compared with the healthy control and the infected control.
Also it was found that the control efficiency of the two isolates was almost equivalent to the tested fungicide. The present data show that phyllospheric fungi can play as a good candidate to be used as a bio-control agent against sugar beet leaf spot disease.
DOI
10.21608/eajast.2021.90993.1001
Keywords
Phyllospheric fungi, Antagonism, Chitinase, β 1, 3 glucanase, Indole acetic acid (IAA) and Salicylic acid (SA)
Authors
MiddleName
-Affiliation
Sugar Crops Research Institute, Agricultural Research Centre, Giza, Egypt
City
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-MiddleName
-Affiliation
Sugar Crops Research Institute, Agricultural Research Centre, Giza, Egypt
Email
shadiataghiab@gmail.com
City
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-Link
https://eajast.journals.ekb.eg/article_205811.html
Detail API
https://eajast.journals.ekb.eg/service?article_code=205811
Publication Title
Egyptian-Arab Journal of Applied Sciences and Technology
Publication Link
https://eajast.journals.ekb.eg/
MainTitle
ROLE OF EMERICELLA NIDULANS AND EPICOCCUM NIGRUM IN CONTROLLING SUGER BEET LEAF SPOT DISEASE