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פותח על ידי קלירמאש פתרונות בע"מ -
Colonization of cucumber seeds by bacteria during germination
Year:
2011
Source of publication :
Environmental Microbiology
Authors :
אופק, מיה
;
.
מינץ, דרור
;
.
Volume :
13
Co-Authors:
Ofek, M., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, PO Box 6, Bet Dagan, Israel, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, PO Box 12, Rehovot, Israel
Hadar, Y., The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, PO Box 12, Rehovot, Israel
Minz, D., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, PO Box 6, Bet Dagan, Israel
Facilitators :
From page:
2794
To page:
2807
(
Total pages:
14
)
Abstract:
Detailed analysis revealed fundamental differences between bacterial association with cucumber (Cucumis sativus) seeds and seedlings roots. Seed colonization by bacteria seems to result from passive encounter between bacteria, conveyed by imbibed soil solution, and the germinating seed. In accordance, the seed-associated bacterial community composition directly reflected that of the germination medium and was characterized by low dominance. Transition from seed to root was marked by a shift in bacterial community composition and in an increase in dominance values. Furthermore, settlement of bacteria on roots was tightly controlled by the specific properties of each root segment. Size and richness of the seed-associated bacterial community were clearly determinate by the community in the germination medium. In contrast, for fully developed and active roots, the medium effect on these parameters was negligible. Perturbation of the seed environment by a pathogen (Pythium aphanidermatum) had major consequences on the seed bacterial community. However, those were mostly related to direct pathogen-bacteria rather than seed-bacteria interactions. In conclusion, simple, even passive processes may determine the initial stage of plant-microbe association during seed germination, prior to extension of the primary root. Therefore, seed germination is a unique phase in the plant life cycle, with respect to its interaction with the below-ground microbiome. © 2011 Society for Applied Microbiology and Blackwell Publishing Ltd.
Note:
Related Files :
bacteria
Cucumis sativus
Genetics
germination
Growth, Development and Aging
Microbiology
Pythium
seeds
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1462-2920.2011.02551.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
29101
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:44
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Scientific Publication
Colonization of cucumber seeds by bacteria during germination
13
Ofek, M., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, PO Box 6, Bet Dagan, Israel, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, PO Box 12, Rehovot, Israel
Hadar, Y., The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, PO Box 12, Rehovot, Israel
Minz, D., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, PO Box 6, Bet Dagan, Israel
Colonization of cucumber seeds by bacteria during germination
Detailed analysis revealed fundamental differences between bacterial association with cucumber (Cucumis sativus) seeds and seedlings roots. Seed colonization by bacteria seems to result from passive encounter between bacteria, conveyed by imbibed soil solution, and the germinating seed. In accordance, the seed-associated bacterial community composition directly reflected that of the germination medium and was characterized by low dominance. Transition from seed to root was marked by a shift in bacterial community composition and in an increase in dominance values. Furthermore, settlement of bacteria on roots was tightly controlled by the specific properties of each root segment. Size and richness of the seed-associated bacterial community were clearly determinate by the community in the germination medium. In contrast, for fully developed and active roots, the medium effect on these parameters was negligible. Perturbation of the seed environment by a pathogen (Pythium aphanidermatum) had major consequences on the seed bacterial community. However, those were mostly related to direct pathogen-bacteria rather than seed-bacteria interactions. In conclusion, simple, even passive processes may determine the initial stage of plant-microbe association during seed germination, prior to extension of the primary root. Therefore, seed germination is a unique phase in the plant life cycle, with respect to its interaction with the below-ground microbiome. © 2011 Society for Applied Microbiology and Blackwell Publishing Ltd.
Scientific Publication
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