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פותח על ידי קלירמאש פתרונות בע"מ -
The pH modulation by fungal secreted molecules: a mechanism affecting pathogenicity by postharvest pathogens
Year:
2016
Source of publication :
Israel Journal of Plant Sciences
Authors :
בי, פנגצ'נג
;
.
ברד, שירי
;
.
מנט, דנה
;
.
פרוסקי, דב
;
.
Volume :
63
Co-Authors:


 

Facilitators :
From page:
22
To page:
30
(
Total pages:
9
)
Abstract:
A postharvest pathogen can start its attack process as soon as spores land on wounded tissue; other pathogens breach the unripe fruit cuticle, remain quiescent for months until the fruit ripens, and then cause major losses. Postharvest fungal pathogens initiate their development by secreting organic acids or ammonia, which acidify or alkalinize the ambient host environment, respectively. These fungal secreted molecules (SM) modulate the host environment and regulate an arsenal of enzymes in order to increase fungal pathogenicity under any specific conditions. Furthermore, accumulation of these SMs (organic acids and ammonia) is multifunctional and, together with their effect on the ambient pH, they activate virulence factors to further enhance their necrotrophic attack. Interestingly, similar arsenals of genes were detected in species with differing acidifying and alkalizing modes of attack. Recently, the mechanism of switching the acidification and alkalization processes was found to be regulated by the carbon levels present in the host. Based on this regulation process, it will be possible to foresee the fungal activation of acid- and/or alkaline-expressed genes and their contribution to pathogenicity. © 2016 Taylor & Francis.
Note:
Related Files :
pathogenicity
pH modulation
secreted molecules
עוד תגיות
תוכן קשור
More details
DOI :
10.1080/07929978.2016.1151290
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
סקירה
;
.
Language:
אנגלית
Editors' remarks:
ID:
18610
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:23
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The pH modulation by fungal secreted molecules: a mechanism affecting pathogenicity by postharvest pathogens
63


 

The pH modulation by fungal secreted molecules: a mechanism affecting pathogenicity by postharvest pathogens
A postharvest pathogen can start its attack process as soon as spores land on wounded tissue; other pathogens breach the unripe fruit cuticle, remain quiescent for months until the fruit ripens, and then cause major losses. Postharvest fungal pathogens initiate their development by secreting organic acids or ammonia, which acidify or alkalinize the ambient host environment, respectively. These fungal secreted molecules (SM) modulate the host environment and regulate an arsenal of enzymes in order to increase fungal pathogenicity under any specific conditions. Furthermore, accumulation of these SMs (organic acids and ammonia) is multifunctional and, together with their effect on the ambient pH, they activate virulence factors to further enhance their necrotrophic attack. Interestingly, similar arsenals of genes were detected in species with differing acidifying and alkalizing modes of attack. Recently, the mechanism of switching the acidification and alkalization processes was found to be regulated by the carbon levels present in the host. Based on this regulation process, it will be possible to foresee the fungal activation of acid- and/or alkaline-expressed genes and their contribution to pathogenicity. © 2016 Taylor & Francis.
Scientific Publication
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