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Plant growth promotion due to rhizobacterial volatiles – An effect of CO 2 ?
Author(s) -
Kai Marco,
Piechulla Birgit
Publication year - 2009
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2009.09.053
Subject(s) - arabidopsis thaliana , plant growth , petri dish , bacterial growth , chemistry , growth medium , promotion (chess) , biology , botany , horticulture , food science , microbiology and biotechnology , biochemistry , bacteria , politics , law , political science , genetics , mutant , gene
Serratia odorifera , an antagonistic rhizobacterium, emits a diverse and complex bouquet of volatiles. Three different in vitro experimental culture systems indicated that these volatiles promote the growth of Arabidopsis thaliana . CO 2 trapping and significant rise of CO 2 levels (390–3000 ppm CO 2 within 24 h) due to bacterial growth in sealed Petri dishes verified the enhanced effects of rhizobacterial CO 2 on A. thaliana's growth. In contrast, open cocultivations abrogated growth promotion, and inhibitory effects come to the fore at ambient CO 2 concentrations.