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Induced resistance to foliar diseases by soil solarization and Trichoderma harzianum
Year:
2015
Source of publication :
Plant Pathology
Authors :
Elad, Yigal
;
.
Harel, Yael Meller
;
.
Okon Levy, Neta
;
.
Rav David, Dalia
;
.
Volume :
64
Co-Authors:
Okon Levy, N., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel, Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
Meller Harel, Y., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel, Plant Protection and Inspection Services, Ministry of Agriculture and Rural Development, PO Box 78, Bet Dagan, Israel
Haile, Z.M., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel, Istituto Agrario di San Michele all'Adige (IASMA), Trento, Italy
Elad, Y., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel
Rav-David, E., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel
Jurkevitch, E., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
Katan, J., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
Facilitators :
From page:
365
To page:
374
(
Total pages:
10
)
Abstract:
The effect of soil solarization and Trichoderma harzianum on induced resistance to grey mould (Botrytis cinerea) and powdery mildew (Podosphaera xanthii) was studied. Plants were grown in soils pretreated by solarization, T. harzianum T39 amendment or both, and then their leaves were inoculated with the pathogens. There was a significant reduction in grey mould in cucumber, strawberry, bean and tomato, and of powdery mildew in cucumber, with a stronger reduction when treatments were combined. Bacillus, pseudomonad and actinobacterial communities in the strawberry rhizosphere were affected by the treatments, as revealed by denaturing gradient gel electrophoresis fingerprinting. In tomato, treatments affected the expression of salicylic acid (SA)-, ethylene (ET)- and jasmonic acid (JA)-responsive genes. With both soil treatments, genes related to SA and ET - PR1a, GluB, CHI9 and Erf1 - were downregulated whereas the JA marker PI2 was upregulated. Following soil treatments and B. cinerea infection, SA-, ET-, and JA-related genes were globally upregulated, except for the LOX genes which were downregulated. Upregulation of the PR genes PR1a, GluB and CHI9 in plants grown in solarized soil revealed a priming effect of this treatment on these genes' expression. The present study demonstrates the capacity of solarization and T. harzianum to systemically induce resistance to foliar diseases in various plants. This may be due to either a direct effect on the plant or an indirect one, via stimulation of beneficial microorganisms in the rhizosphere. © 2014 British Society for Plant Pathology.
Note:
Related Files :
Actinobacteria
BioControl
Botrytis
Cucumis sativus
Hypocrea lixii
powdery mildew
soil solarization
Show More
Related Content
More details
DOI :
10.1111/ppa.12255
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
20020
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:33
Scientific Publication
Induced resistance to foliar diseases by soil solarization and Trichoderma harzianum
64
Okon Levy, N., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel, Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
Meller Harel, Y., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel, Plant Protection and Inspection Services, Ministry of Agriculture and Rural Development, PO Box 78, Bet Dagan, Israel
Haile, Z.M., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel, Istituto Agrario di San Michele all'Adige (IASMA), Trento, Italy
Elad, Y., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel
Rav-David, E., Department of Plant Pathology and Weed Research, Institute of Plant Protection, The Volcani Center Agricultural Research Organization, Bet Dagan, Israel
Jurkevitch, E., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
Katan, J., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Food and Environment, The Hebrew University, Rehovot, Israel
Induced resistance to foliar diseases by soil solarization and Trichoderma harzianum
The effect of soil solarization and Trichoderma harzianum on induced resistance to grey mould (Botrytis cinerea) and powdery mildew (Podosphaera xanthii) was studied. Plants were grown in soils pretreated by solarization, T. harzianum T39 amendment or both, and then their leaves were inoculated with the pathogens. There was a significant reduction in grey mould in cucumber, strawberry, bean and tomato, and of powdery mildew in cucumber, with a stronger reduction when treatments were combined. Bacillus, pseudomonad and actinobacterial communities in the strawberry rhizosphere were affected by the treatments, as revealed by denaturing gradient gel electrophoresis fingerprinting. In tomato, treatments affected the expression of salicylic acid (SA)-, ethylene (ET)- and jasmonic acid (JA)-responsive genes. With both soil treatments, genes related to SA and ET - PR1a, GluB, CHI9 and Erf1 - were downregulated whereas the JA marker PI2 was upregulated. Following soil treatments and B. cinerea infection, SA-, ET-, and JA-related genes were globally upregulated, except for the LOX genes which were downregulated. Upregulation of the PR genes PR1a, GluB and CHI9 in plants grown in solarized soil revealed a priming effect of this treatment on these genes' expression. The present study demonstrates the capacity of solarization and T. harzianum to systemically induce resistance to foliar diseases in various plants. This may be due to either a direct effect on the plant or an indirect one, via stimulation of beneficial microorganisms in the rhizosphere. © 2014 British Society for Plant Pathology.
Scientific Publication
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