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- Title
Influence of allelopathic potential of rice accessions in low phosphate hydroponics on Microbial diversity.
- Authors
WANG, H. B.; ZHANG, Q.; YANG, X. Y.; Li, J. Y.; WU, H.; HE, H. B.
- Abstract
Using the BIOLOG ECO microplates technique, the differential microbial populations and their functional diversity between an allelopathic rice accession 'PI312777' and a non-allelopathic rice accession 'Lemont' were studied under phosphate (P) stress in hydroponic conditions. Under lower P regime, the number of bacteria and fungi significantly increased in the culture solutions of alleopathic rice PI312777. The principal component analysis (PCA) showed that the carboxylic acids, phenolic acids and fatty acids were the principal carbon sources for microbes growth. The results of correlation analysis indicated the carboxylic acids, phenolic acids and fatty acids were positively correlated with the rice allelopathic potential and the number of bacteria and fungi in the culture solutions. These results suggested that organic acids in alleopathic rice PI312777 culture solutions greatly influenced the growth of bacteria and fungi that were positively correlated with the rice allelopathic potential and formed an unfavorable condition for the growth of target weeds.
- Subjects
MICROBIAL diversity; CARBOXYLIC acids analysis; ORGANIC acids; RICE; CULTURE media (Biology); PHENOLIC acids; PHOSPHATES
- Publication
Allelopathy Journal, 2016, Vol 38, Issue 1, p55
- ISSN
0971-4693
- Publication type
Article