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פותח על ידי קלירמאש פתרונות בע"מ -
Comparison of effects of compost amendment and of single-strain inoculation on root bacterial communities of young cucumber seedlings
Year:
2009
Authors :
אופק, מיה
;
.
מינץ, דרור
;
.
Volume :
75
Co-Authors:
Ofek, M., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization of Israel, P.O. Box 6, Bet Dagan, Israel, Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, P.O. Box 12, Rehovot, Israel
Hadar, Y., Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, P.O. Box 12, Rehovot, Israel
Minz, D., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization of Israel, P.O. Box 6, Bet Dagan, Israel
Facilitators :
From page:
6441
To page:
6450
(
Total pages:
10
)
Abstract:
Compost amendment and inoculations with specific microorganisms are fundamentally different soil treatment methods, commonly used in agriculture for the improvement of plant growth and health. Although distinct, both methods affect the rhizosphere and the plant roots. In the present study we used a 16S rRNA gene approach to achieve an overview of early consequences of these treatments on the assemblage of plant root bacterial communities. For this purpose, cucumber seedlings were grown, under controlled conditions, in perlite potting mix amended with biosolid compost or straw compost, or inoculated with Streptomyces spp. A uniform trend of response of root bacterial communities for all treatments was observed. Root bacterial density, measured as bacterial targets per plant tef gene by real-time PCR, was reduced in 31 to 67%. In addition, increased taxonomic diversity accompanied shifts in composition (α-diversity). The magnitude of change in these parameters relative to the perlite control varied between the different treatments but not in relation to the treatment method (compost amendments versus inoculations). Similarity between the compositions of root and of potting mix bacterial communities (β-diversity) was relatively unchanged. The abundance of Oxalobacteraceae was >50% of the total root bacterial community in the untreated perlite. Root domination by this group subsided >10-fold (straw compost) to >600-fold (Streptomyces sp. strain S1) after treatment. Thus, loss of dominance appears to be the major phenomenon underlining the response trend of the root bacterial communities. Copyright © 2009, American Society for Microbiology. All Rights Reserved.
Note:
Related Files :
Agriculture
bacteria
biodiversity
Cucumis sativus
plant growth
rhizosphere
soil
Symbiosis
עוד תגיות
תוכן קשור
More details
DOI :
10.1128/AEM.00736-09
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26406
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:22
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Scientific Publication
Comparison of effects of compost amendment and of single-strain inoculation on root bacterial communities of young cucumber seedlings
75
Ofek, M., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization of Israel, P.O. Box 6, Bet Dagan, Israel, Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, P.O. Box 12, Rehovot, Israel
Hadar, Y., Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, P.O. Box 12, Rehovot, Israel
Minz, D., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization of Israel, P.O. Box 6, Bet Dagan, Israel
Comparison of effects of compost amendment and of single-strain inoculation on root bacterial communities of young cucumber seedlings
Compost amendment and inoculations with specific microorganisms are fundamentally different soil treatment methods, commonly used in agriculture for the improvement of plant growth and health. Although distinct, both methods affect the rhizosphere and the plant roots. In the present study we used a 16S rRNA gene approach to achieve an overview of early consequences of these treatments on the assemblage of plant root bacterial communities. For this purpose, cucumber seedlings were grown, under controlled conditions, in perlite potting mix amended with biosolid compost or straw compost, or inoculated with Streptomyces spp. A uniform trend of response of root bacterial communities for all treatments was observed. Root bacterial density, measured as bacterial targets per plant tef gene by real-time PCR, was reduced in 31 to 67%. In addition, increased taxonomic diversity accompanied shifts in composition (α-diversity). The magnitude of change in these parameters relative to the perlite control varied between the different treatments but not in relation to the treatment method (compost amendments versus inoculations). Similarity between the compositions of root and of potting mix bacterial communities (β-diversity) was relatively unchanged. The abundance of Oxalobacteraceae was >50% of the total root bacterial community in the untreated perlite. Root domination by this group subsided >10-fold (straw compost) to >600-fold (Streptomyces sp. strain S1) after treatment. Thus, loss of dominance appears to be the major phenomenon underlining the response trend of the root bacterial communities. Copyright © 2009, American Society for Microbiology. All Rights Reserved.
Scientific Publication
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