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Bernard R. Glick - One of the best experts on this subject based on the ideXlab platform.
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Plant Growth-promoting bacterial endophytes.
Microbiological research, 2015Co-Authors: Gustavo Santoyo, Gabriel Moreno-hagelsieb, Ma. Del Carmen Orozco-mosqueda, Bernard R. GlickAbstract:Bacterial endophytes ubiquitously colonize the internal tissues of Plants, being found in nearly every Plant worldwide. Some endophytes are able to promote the Growth of Plants. For those strains the mechanisms of Plant Growth-promotion known to be employed by bacterial endophytes are similar to the mechanisms used by rhizospheric bacteria, e.g., the acquisition of resources needed for Plant Growth and modulation of Plant Growth and development. Similar to rhizospheric Plant Growth-promoting bacteria, endophytic Plant Growth-promoting bacteria can act to facilitate Plant Growth in agriculture, horticulture and silviculture as well as in strategies for environmental cleanup (i.e., phytoremediation). Genome comparisons between bacterial endophytes and the genomes of rhizospheric Plant Growth-promoting bacteria are starting to unveil potential genetic factors involved in an endophytic lifestyle, which should facilitate a better understanding of the functioning of bacterial endophytes.
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bacteria with acc deaminase can promote Plant Growth and help to feed the world
Microbiological Research, 2014Co-Authors: Bernard R. GlickAbstract:To feed all of the world's people, it is necessary to sustainably increase agricultural productivity. One way to do this is through the increased use of Plant Growth-promoting bacteria; recently, scientists have developed a more profound understanding of the mechanisms employed by these bacteria to facilitate Plant Growth. Here, it is argued that the ability of Plant Growth-promoting bacteria that produce 1-aminocyclopropane-1-carboxylate (ACC) deaminase to lower Plant ethylene levels, often a result of various stresses, is a key component in the efficacious functioning of these bacteria. The optimal functioning of these bacteria includes the synergistic interaction between ACC deaminase and both Plant and bacterial auxin, indole-3-acetic acid (IAA). These bacteria not only directly promote Plant Growth, they also protect Plants against flooding, drought, salt, flower wilting, metals, organic contaminants, and both bacterial and fungal pathogens. While a considerable amount of both basic and applied work remains to be done before ACC deaminase-producing Plant Growth-promoting bacteria become a mainstay of Plant agriculture, the evidence indicates that with the expected shift from chemicals to soil bacteria, the world is on the verge of a major paradigm shift in Plant agriculture.
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Plant Growth-Promoting Bacteria: Mechanisms and Applications
Scientifica, 2012Co-Authors: Bernard R. GlickAbstract:The worldwide increases in both environmental damage and human population pressure have the unfortunate consequence that global food production may soon become insufficient to feed all of the world's people. It is therefore essential that agricultural productivity be significantly increased within the next few decades. To this end, agricultural practice is moving toward a more sustainable and environmentally friendly approach. This includes both the increasing use of transgenic Plants and Plant Growth-promoting bacteria as a part of mainstream agricultural practice. Here, a number of the mechanisms utilized by Plant Growth-promoting bacteria are discussed and considered. It is envisioned that in the not too distant future, Plant Growth-promoting bacteria (PGPB) will begin to replace the use of chemicals in agriculture, horticulture, silviculture, and environmental cleanup strategies. While there may not be one simple strategy that can effectively promote the Growth of all Plants under all conditions, some of the strategies that are discussed already show great promise.
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promotion of Plant Growth by bacterial acc deaminase
Critical Reviews in Plant Sciences, 2007Co-Authors: Bernard R. Glick, Biljana Todorovic, Jennifer Czarny, Zhenyu Cheng, Jin Duan, Brendan J McconkeyAbstract:To date, there has been only limited commercial use of Plant Growth-promoting bacteria in agriculture, horticulture, and silviculture. However, with recent progress toward understanding the mechanisms that these organisms utilize to facilitate Plant Growth, the use of Plant Growth-promoting bacteria is expected to continue to increase worldwide. One of the key mechanisms employed by Plant Growth-promoting bacteria to facilitate Plant Growth is the lowering of Plant ethylene levels by the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase. This article reviews the published work on this enzyme, with an emphasis on its biochemistry, protein structure, genes, and regulation. In addition, this article provides some initial insights into the changes in both Plants and ACC deaminase-containing Plant Growth-promoting bacteria as a consequence of Plant-microbe interactions. Finally, a brief discussion of how bacterial ACC deaminase and indoleacetic acid (IAA) together modulate Plant Growth and development i...
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promotion of Plant Growth by acc deaminase producing soil bacteria
European Journal of Plant Pathology, 2007Co-Authors: Bernard R. Glick, Jennifer Czarny, Zhenyu Cheng, Jin DuanAbstract:Plant Growth-promoting bacteria that contain the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase facilitate Plant Growth and development by decreasing Plant ethylene levels, especially following a variety of environmental stresses. In this review, the physiological basis for this Growth-promotion effect is examined in some detail. In addition, models are presented that endeavour to explain (i) the seemingly paradoxical effects of ethylene on a Plant’s response to stress, (ii) how the expression of this enzyme is transcriptionally regulated in many bacterial strains and (iii) how ACC deaminase-containing Plant Growth-promoting bacteria alter Plant gene expression and positively modulate Plant Growth.
Kari E Dunfield - One of the best experts on this subject based on the ideXlab platform.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen Thompson, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively infl uence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is infl uenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe– microbe interactions and Plant–microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identifi ed, but the predictive success at positively infl uencing Plant Growth in ficonditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism’s ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen A Thompson, Nicola J Day, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively influence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is influenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe-microbe interactions and Plant-microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identified, but the predictive success at positively influencing Plant Growth in field conditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism's ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.
Jonathan R Gaiero - One of the best experts on this subject based on the ideXlab platform.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen Thompson, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively infl uence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is infl uenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe– microbe interactions and Plant–microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identifi ed, but the predictive success at positively infl uencing Plant Growth in ficonditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism’s ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen A Thompson, Nicola J Day, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively influence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is influenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe-microbe interactions and Plant-microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identified, but the predictive success at positively influencing Plant Growth in field conditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism's ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.
Crystal A Mccall - One of the best experts on this subject based on the ideXlab platform.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen Thompson, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively infl uence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is infl uenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe– microbe interactions and Plant–microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identifi ed, but the predictive success at positively infl uencing Plant Growth in ficonditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism’s ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen A Thompson, Nicola J Day, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively influence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is influenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe-microbe interactions and Plant-microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identified, but the predictive success at positively influencing Plant Growth in field conditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism's ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.
Anna Best - One of the best experts on this subject based on the ideXlab platform.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen Thompson, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively infl uence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is infl uenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe– microbe interactions and Plant–microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identifi ed, but the predictive success at positively infl uencing Plant Growth in ficonditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism’s ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.
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inside the root microbiome bacterial root endophytes and Plant Growth promotion
American Journal of Botany, 2013Co-Authors: Jonathan R Gaiero, Crystal A Mccall, Anna Best, Karen A Thompson, Nicola J Day, Kari E DunfieldAbstract:Bacterial root endophytes reside in a vast number of Plant species as part of their root microbiome, with some being shown to positively influence Plant Growth. Endophyte community structure (species diversity: richness and relative abundances) within the Plant is dynamic and is influenced by abiotic and biotic factors such as soil conditions, biogeography, Plant species, microbe-microbe interactions and Plant-microbe interactions, both at local and larger scales. Plant-Growth-promoting bacterial endophytes (PGPBEs) have been identified, but the predictive success at positively influencing Plant Growth in field conditions has been limited. Concurrent to the development of modern molecular techniques, the goal of predicting an organism's ability to promote Plant Growth can perhaps be realized by more thorough examination of endophyte community dynamics. This paper reviews the drivers of endophyte community structure relating to Plant Growth promotion, the mechanisms of Plant Growth promotion, and the current and future use of molecular techniques to study these communities.