Plant growth promoting rhizobacteria are more effective under drought: a meta-analysis
Plant growth promoting rhizobacteria are more effective under drought: a meta-analysis
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促进植物生长的根际细菌在干旱下更有效:荟萃分析
DOI:
10.1007/s11104-017-3199-8
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发表时间:
2017
期刊:
影响因子:
4.9
通讯作者:
Hungate, Bruce A.
中科院分区:
文献类型:
--
作者:
Rubin, Rachel L.;van Groenigen, Kees Jan;Hungate, Bruce A.
Background and aimsPlant growth promoting rhizobacteria (PGPR) have been shown to reduce abiotic stress on plants, but these effects have not been quantitatively synthesized. We evaluated the degree to which plant growth promoting rhizobacteria (PGPR) improve plant performance with and without drought stress.MethodsWe used meta-analysis to summarize 52 published articles on the effects of PGPR on root mass, shoot mass and yield under well-watered and drought conditions. We also asked whether fertilization treatments, experimental conditions, inoculum taxonomic complexity, plant functional group, or inoculum delivery method introduce variation in the effect size of PGPR.ResultsAcross all treatments, plants were highly responsive to PGPR; under well-watered conditions, root mass increased by 35%, shoot mass increased by 28%, and reproductive yield increased by 19%. Under drought conditions, the effect was even higher: root mass increased by 43%, shoot mass increased by 45%, and reproductive yield increased by 40%. The effect of PGPR was significantly larger under drought for shoot mass (p< 0.05) and reproductive yield (p< 0.05), but not for root mass. PGPR responsiveness also varied according to plant functional group, with C3grass shoot production responding the least strongly to PGPR.ConclusionsWe demonstrate that PGPR are highly effective for improving plant growth, with a greater effect under drought for above ground traits. While previously known for their bio-control abilities, we show that PGPR may also contribute to drought amelioration and water conservation.
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DOI:
10.1139/b90-061
发表时间:
1990-03-01
期刊:
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE
影响因子:
--
作者:
HETRICK, BAD;WILSON, GWT;TODD, TC
通讯作者:
TODD, TC
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
H. Yasmin;A. Bano;Samiullah
通讯作者:
Samiullah
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
P. V. Shintu;K. Jayaram
通讯作者:
K. Jayaram
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Zahra Moslemi;D. Habibi;A. Asgharzadeh;M. Ardakani;A. Mohammadi;M. Mohammadi
通讯作者:
M. Mohammadi
DOI:
--
发表时间:
1977
期刊:
影响因子:
--
作者:
E. Dasilva;L. E. Henriksson;M. Udris
通讯作者:
M. Udris