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      Response of rhizosphere bacterial community of Taxus chinensis var. mairei to temperature changes

      research-article
      1 , 2 , 3 , 1 , 2 , * , 1 , 2
      PLoS ONE
      Public Library of Science

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          Abstract

          Background

          Temperature is a key factor influencing the growth and distribution of Taxus chinensis var. mairei, which is of high medicinal value. However, there is little information about the changes in rhizosphere bacterial community of Taxus chinensis var. maire under different temperatures.

          Methods

          In this study, the rhizosphere bacterial communities of Taxus chinensis var. maire under a series of temperatures [5°C (T5), 15°C (T15), 25°C (T25), 35°C (T35)] were assessed through high-throughput sequencing. And some taxa annotated as Mitochondria were positively correlated with the activity of SOD.

          Results

          Activity of peroxidase (POD) and superoxide dismutase (SOD) were increased and decreased respectively with increasing incubation temperature, showing that SOD may be the dominant reactive oxygen species (ROS) detoxifying enzyme in Taxus chinensis var. maire under low temperature. Taxus chinensis var. maire enriched specific bacterial taxa in rhizosphere under different temperature, and the rhizosphere bacterial diversity decreased with increasing temperature.

          Conclusion

          The results indicated that rhizosphere bacteria may play important role for Taxus chinensis var. maire in coping with temperature changes, and the management of rhizosphere bacteria in a potential way to increase the cold resistance of Taxus chinensis var. mairei, thus improving its growth under low temperature and enlarging its habitats.

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          Most cited references26

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          Rhizosphere bacteria help plants tolerate abiotic stress.

          Plant-growth-promoting rhizobacteria (PGPR) are associated with plant roots and augment plant productivity and immunity; however, recent work by several groups shows that PGPR also elicit so-called 'induced systemic tolerance' to salt and drought. As we discuss here, PGPR might also increase nutrient uptake from soils, thus reducing the need for fertilizers and preventing the accumulation of nitrates and phosphates in agricultural soils. A reduction in fertilizer use would lessen the effects of water contamination from fertilizer run-off and lead to savings for farmers.
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            Molecular Regulation of CBF Signaling in Cold Acclimation

            Cold stress restricts plant growth, development, and distribution. Understanding how plants transduce and respond to cold signals has long been a topic of interest. Traditional genetic and molecular analyses have identified C-repeat/DREB binding factors (CBFs) as key transcription factors that function in cold acclimation. Recent studies revealed the involvement of pivotal protein kinases and transcription factors in CBF-dependent signaling, expanding our knowledge of cold signal transduction from perception to downstream gene expression events. In this review, we summarize recent advances in our understanding of the molecular regulation of these core components of the CBF cold signaling pathway. Knowledge of the mechanism underlying the ability of plants to survive freezing temperatures will facilitate the development of crop plants with increased freezing tolerance.
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              Bacterial diversity in soils subjected to long-term chemical fertilization can be more stably maintained with the addition of livestock manure than wheat straw

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                Author and article information

                Contributors
                Role: ResourcesRole: Writing – original draft
                Role: Funding acquisitionRole: Writing – review & editing
                Role: Funding acquisitionRole: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS ONE
                plos
                plosone
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                12 December 2019
                2019
                : 14
                : 12
                : e0226500
                Affiliations
                [1 ] School of Minerals Processing and Bioengineering, Central South University, Changsha, China
                [2 ] Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, China
                [3 ] Key Laboratory of Hunan Province for Comprehensive Utilization of Superiority Plant Resources in Southern Hunan, Hunan University of Science and Engineering, Yongzhou, Hunan, China
                Purdue University, UNITED STATES
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Author information
                http://orcid.org/0000-0002-4096-5523
                Article
                PONE-D-19-12994
                10.1371/journal.pone.0226500
                6907812
                31830112
                1a022a93-bad5-4b92-baa0-9f04d88573e6
                © 2019 Yu et al

                This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 8 May 2019
                : 26 November 2019
                Page count
                Figures: 3, Tables: 2, Pages: 11
                Funding
                Funded by: the National Key Technology R&D Program (CN)
                Award ID: 2013BAC09B00-7
                Award Recipient :
                This research was supported by the National Key Technology R&D Program (2013BAC09B00-7), China, and Hunan Key Laboratory Open Fund Project for Comprehensive Utilization of Superior Plant Resources in Southern Hunan(XNZW15C17). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
                Categories
                Research Article
                Biology and Life Sciences
                Ecology
                Plant Ecology
                Plant-Environment Interactions
                Rhizosphere
                Ecology and Environmental Sciences
                Ecology
                Plant Ecology
                Plant-Environment Interactions
                Rhizosphere
                Biology and Life Sciences
                Plant Science
                Plant Ecology
                Plant-Environment Interactions
                Rhizosphere
                Biology and Life Sciences
                Organisms
                Bacteria
                Physical Sciences
                Physics
                Classical Mechanics
                Mechanical Stress
                Thermal Stresses
                Biology and Life Sciences
                Plant Science
                Plant Physiology
                Plant Defenses
                Plant Resistance to Abiotic Stress
                Biology and Life Sciences
                Plant Science
                Plant Pathology
                Plant Resistance to Abiotic Stress
                Biology and Life Sciences
                Ecology
                Plant Ecology
                Plant-Environment Interactions
                Plant Resistance to Abiotic Stress
                Ecology and Environmental Sciences
                Ecology
                Plant Ecology
                Plant-Environment Interactions
                Plant Resistance to Abiotic Stress
                Biology and Life Sciences
                Plant Science
                Plant Ecology
                Plant-Environment Interactions
                Plant Resistance to Abiotic Stress
                Biology and Life Sciences
                Biochemistry
                Enzymology
                Enzymes
                Dismutases
                Superoxide Dismutase
                Biology and Life Sciences
                Biochemistry
                Proteins
                Enzymes
                Dismutases
                Superoxide Dismutase
                Biology and Life Sciences
                Organisms
                Eukaryota
                Plants
                Medicinal Plants
                Biology and Life Sciences
                Plant Science
                Plant Anatomy
                Leaves
                Research and Analysis Methods
                Database and Informatics Methods
                Biological Databases
                Sequence Databases
                Research and Analysis Methods
                Database and Informatics Methods
                Bioinformatics
                Sequence Analysis
                Sequence Databases
                Custom metadata
                All relevant data are within the paper and its Supporting Information files.

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