Influence of Light of Different Narrowband Light on the Key of Calvin Cycle and Antioxidant Enzyme, Secondary Metabolites and Microbial Communities in Soybeans
W. He, Q. Chai, C. Zhao, W. Yin, H. Fan, A. Yu, Z. Fan, F. Hu, Y. Sun, F. Wang
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引用次数: 0
Abstract
Light is essential for plant growth, although excessive light radiation may have negative effects on many plants, including soybeans. This study examined the influence of white (W), red (R), blue (B), and ultraviolet (UV-A) light on the key enzymes of Calvin cycle, key antioxidant enzymes and secondary metabolites, and also microbial and fungal communities of soybean plants (Glycine max (L.) Merr. To achieve this, fully expanded soybean leaves of 45-day-old plants were maintained in vitro for 7 days W, red R, blue B, or UV-A light. Soybean leaves under B treatment had enhanced Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), fructose-1, 6-bisphosphatase (FBPase), glyceraldehyde 3-phosphate dehydrogenase (GAPDH), and fructose-1,6-bisphosphate aldolase (FBA) activities that improved photosynthesis and starch accumulation, compared to the W, R, and UV-A treatments. There were significant increases for B treatment in the activities of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD), and a reduction in the malondialdehyde (MDA) content. B treatment led to enrichment of secondary metabolites, such as phenols and flavonoids. Soybean leaves under R treatment had more plant growth-promoting bacteria than with B treatment. The relative abundances of Basidiomycota and Ascomycota fungi under B treatment were lower to avoid decomposition of substances than with the R and UV-A treatment. In summary, blue light improved soybean leaf growth and antioxidant capacity compared to red light. The wavelengths of B and UV-A are very close, although UV-A still reduced soybean leaf growth and accelerated leaf senescence.
期刊介绍：
Russian Journal of Plant Physiology is a leading journal in phytophysiology. It embraces the full spectrum of plant physiology and brings together the related aspects of biophysics, biochemistry, cytology, anatomy, genetics, etc. The journal publishes experimental and theoretical articles, reviews, short communications, and descriptions of new methods. Some issues cover special problems of plant physiology, thus presenting collections of articles and providing information in rapidly growing fields. The editorial board is highly interested in publishing research from all countries and accepts manuscripts in English.
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