CO 2 is a key constituent of the plant growth-promoting volatiles generated by bacteria in a sealed system
- PDF / 2,720,686 Bytes
- 10 Pages / 595.276 x 790.866 pts Page_size
- 70 Downloads / 162 Views
ORIGINAL ARTICLE
CO2 is a key constituent of the plant growth‑promoting volatiles generated by bacteria in a sealed system Chunlei Zhang1 · Mengyue Zhang1 · Zhenwei Yan1 · Fengxia Wang1 · Xianzheng Yuan2 · Shan Zhao2 · Lei Zhang4 · Huiyu Tian1 · Zhaojun Ding1,3 Received: 9 April 2020 / Accepted: 19 September 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Key message Plant growth is greatly inhibited in tightly sealed Petri dishes for lack of CO2. Bacteria which cocultured with plant can produce CO2 to promote plant growth in sealed systems. Abstract Bacteria produce a wide variety of volatiles, some of which can support and others can damage plant growth. It is a controversial issue whether C O2 or other bacterial volatile compounds promote plant growth in sealed systems. C O2 is critical for photosynthesis. Here, we show that CO2 is a key constituent of the plant growth-promoting volatiles generated by bacteria in a sealed system. We revealed that the growth of Arabidopsis seedlings in an airtight container was retarded due to insufficient supply of the CO2. When either CO2 was introduced into the container, or the seedlings were co-cultured along with certain bacterial species, the plants’ growth was restored. Conclusion: The benefit of co-culturing was largely due to the CO2 generated by respiration of the bacteria. Keywords PGPR · Volatiles · CO2 · Plant growth
Introduction Communicated by Neal Stewart. Chunlei Zhang, Mengyue Zhang, and Zhenwei Yan contributed equally to this work. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00299-020-02610-3) contains supplementary material, which is available to authorized users.
Plants co-exist with a great many of bacteria, the growth of which can be stimulated by organic compounds secreted by the roots of plants (Bulgarelli et al. 2012; Bulgarelli et al. 2013; Dakora and Phillips 2002; Lundberg, et al. 2012; Yu et al. 2019). The result is that rhizosphere typically support a richer
* Huiyu Tian [email protected]
Lei Zhang [email protected]
* Zhaojun Ding [email protected]
1
The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao 266237, Shandong, China
2
Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, Shandong, China
3
State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
4
Institute for Translational Medicine, Qingdao University, Qingdao 266021, Shandong, China
Chunlei Zhang [email protected] Mengyue Zhang [email protected] Zhenwei Yan [email protected] Fengxia Wang [email protected] Xianzheng Yuan [email protected] Shan Zhao [email protected]
13
Vol.:(0123456789)
microbiome than elsewhere (Lugtenberg and Kamilova 2009). Some rhizosphere bacteria, such as plant grow
Data Loading...
