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Occurrence of Macrophomina phaseolina in Israel: Challenges for Disease Management and Crop Germplasm Enhancement
Year:
2022
Source of publication :
Plant Disease
Authors :
Dai, Nir
;
.
Freeman, Stanley
;
.
Volume :
106
Co-Authors:

Roni Cohen
Meital Elkabez
Harry Paris
Amit Gur
Nir Dai
Onn Rabinovitz 
Stanley Freeman 

Facilitators :
From page:
15
To page:
25
(
Total pages:
11
)
Abstract:

Macrophomina phaseolina is a soil-borne fungal pathogen infecting many important crop plants. The fungus, which can survive on crop debris for a long period of time, causes charcoal rot disease by secreting a diverse array of cell-wall degrading enzymes and toxins. M. phaseolina thrives during periods of high temperatures and arid conditions, as typically occuring in Israel and other countries with a Mediterranean climate. Crop losses due to charcoal rot can be expected to increase and spread to other countries in a warming global climate. Management of this pathogen is challenging, requiring an array of approaches for the various crop hosts. Approaches that have had some success in Israel include grafting of melons and watermelons on resistant squash rootstocks and soil application of fungicide to reduce disease incidence in melons, fumigation and alterations in planting date and mulching of strawberries, and alteration in irrigation regime of cotton. Elsewhere, these approaches as well as soil amendments, and addition of organisms that are antagonistic to M. phaseolina have had success in some crop situations. Management through host resistance would be the most sustainable approach, but requires identifying resistant germplasm for each crop and introgressing the resistance into the leading cultivars. Resistance to charcoal rot is under complex genetic control in most crops, posing a great challenge for its introgression into elite germplasm. Moreover, fast, reliable methods of screening for resistance would have to be developed for each crop. The toothpick-inoculation method used by us holds great promise for selecting resistant germplasm for melons and possibly for sesame, but other methodologies have to be devised for each individual crop.

Note:
Related Files :
breeding
Citrullus lanatus
COTTON
Macrophomina phaseolina
Melon
Resistance
Sesame
strawberry
Show More
Related Content
More details
DOI :
10.1094/PDIS-07-21-1390-FE
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
57020
Last updated date:
02/03/2022 17:27
Creation date:
16/11/2021 16:56
You may also be interested in
Scientific Publication
Occurrence of Macrophomina phaseolina in Israel: Challenges for Disease Management and Crop Germplasm Enhancement
106

Roni Cohen
Meital Elkabez
Harry Paris
Amit Gur
Nir Dai
Onn Rabinovitz 
Stanley Freeman 

Occurrence of Macrophomina phaseolina in Israel: Challenges for Disease Management and Crop Germplasm Enhancement

Macrophomina phaseolina is a soil-borne fungal pathogen infecting many important crop plants. The fungus, which can survive on crop debris for a long period of time, causes charcoal rot disease by secreting a diverse array of cell-wall degrading enzymes and toxins. M. phaseolina thrives during periods of high temperatures and arid conditions, as typically occuring in Israel and other countries with a Mediterranean climate. Crop losses due to charcoal rot can be expected to increase and spread to other countries in a warming global climate. Management of this pathogen is challenging, requiring an array of approaches for the various crop hosts. Approaches that have had some success in Israel include grafting of melons and watermelons on resistant squash rootstocks and soil application of fungicide to reduce disease incidence in melons, fumigation and alterations in planting date and mulching of strawberries, and alteration in irrigation regime of cotton. Elsewhere, these approaches as well as soil amendments, and addition of organisms that are antagonistic to M. phaseolina have had success in some crop situations. Management through host resistance would be the most sustainable approach, but requires identifying resistant germplasm for each crop and introgressing the resistance into the leading cultivars. Resistance to charcoal rot is under complex genetic control in most crops, posing a great challenge for its introgression into elite germplasm. Moreover, fast, reliable methods of screening for resistance would have to be developed for each crop. The toothpick-inoculation method used by us holds great promise for selecting resistant germplasm for melons and possibly for sesame, but other methodologies have to be devised for each individual crop.

Scientific Publication
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