CO 2 is a key constituent of the plant growth-promoting volatiles generated by bacteria in a sealed system.

Autor: Zhang C; The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China., Zhang M; The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China., Yan Z; The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China., Wang F; The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China., Yuan X; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, Shandong, China., Zhao S; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, Shandong, China., Zhang L; Institute for Translational Medicine, Qingdao University, Qingdao, 266021, Shandong, China., Tian H; The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China. tianhuiyu@sdu.edu.cn., Ding Z; The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China. dingzhaojun@sdu.edu.cn.; State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, Shandong, China. dingzhaojun@sdu.edu.cn.
Jazyk: angličtina
Zdroj: Plant cell reports [Plant Cell Rep] 2021 Jan; Vol. 40 (1), pp. 59-68. Date of Electronic Publication: 2020 Oct 03.
DOI: 10.1007/s00299-020-02610-3
Abstrakt: Key Message: Plant growth is greatly inhibited in tightly sealed Petri dishes for lack of CO 2 . Bacteria which co-cultured with plant can produce CO 2 to promote plant growth in sealed systems. Bacteria produce a wide variety of volatiles, some of which can support and others can damage plant growth. It is a controversial issue whether CO 2 or other bacterial volatile compounds promote plant growth in sealed systems. CO 2 is critical for photosynthesis. Here, we show that CO 2 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 CO 2 . When either CO 2 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 CO 2 generated by respiration of the bacteria.
Databáze: MEDLINE
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