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

English version

Autoři: Xianghua Yu ^aff001; Xinxing Liu ^aff001; Xueduan Liu ^aff001
Působiště autorů: School of Minerals Processing and Bioengineering, Central South University, Changsha, China ^aff001; Key Laboratory of Biometallurgy of Ministry of Education, Central South University, Changsha, China ^aff002; Key Laboratory of Hunan Province for Comprehensive Utilization of Superiority Plant Resources in Southern Hunan, Hunan University of Science and Engineering, Yongzhou, Hunan, China ^aff003
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pone.0226500

Souhrn

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.

Klíčová slova:

Bacteria – Rhizosphere – Plant resistance to abiotic stress – Leaves – Sequence databases – Medicinal plants – Superoxide dismutase – Thermal stresses

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