College of Life Science, Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin of Xinjiang Production and Construction Corps, Tarim University, Xinjiang, People's Republic of China.
School of Basic Medicine, Youjiang Medical University for Nationalities, Baise, People's Republic of China.
J Sci Food Agric. 2023 Jan 15;103(1):164-175. doi: 10.1002/jsfa.12126. Epub 2022 Jul 29.
Sophora alopecuroides L. is a leguminous plant commonly found in northwest China. In Xinjiang, the fresh herb of S. alopecuroides is often applied as a green fertilizer to the rhizosphere of melon (Cucumis melo) plants at the end of their flowering period, to improve the taste of the fruits. However, the effects of S. alopecuroides-based fertilizers on the microbial community structure of soil and crop-root systems are unclear. In order to study the sweetening mechanism of the S. alopecuroides organic fertilizer, three different varieties of melon were selected. The untreated plants were used as the control (CK) group, and the plants treated with S. alopecuroides-based organic fertilizer were selected as the treatment (T) group. The physical and chemical properties, enzyme activities and microbial community structure of the rhizosphere samples were also determined, and a correlation analysis with the fruit sweetness index was conducted.
Sugar content of group T was at least 40% higher than that of group CK. The increase in fruit sugar content positively correlated with the increase in the abundance of beneficial microorganisms, including Pseudomonas, Bacillus, Mycobacterium, Burkholderia, Streptomyces, Acinetobacter, Proteobacteria, Lysobacter, Actinomycetes, Penicillium and Aspergillus.
Sophora alopecuroides organic fertilizer could alter the composition and function of bacterial and fungal communities and promote the growth of beneficial bacteria in the melon plant rhizosphere. Further, it could increase the content of soluble solids and sugar in the fruits to achieve a sweetening effect. This fertilizer can be applied as a fruit sweetener in melon cultivation, improving the sugar content of the fruit and consequently the sweetness. © 2022 Society of Chemical Industry.
苦参是中国西北常见的豆科植物。在新疆，苦参的鲜草常作为绿肥施用于甜瓜（Cucumis melo）作物的根际，以改善果实的口感。然而，苦参肥料对土壤和作物根系微生物群落结构的影响尚不清楚。为了研究苦参有机肥的增甜机制，选择了三个不同品种的甜瓜。未处理的植物作为对照（CK）组，用苦参基有机肥处理的植物作为处理（T）组。还测定了根际样本的理化性质、酶活性和微生物群落结构，并与果实甜度指数进行了相关性分析。
T 组的含糖量至少比 CK 组高 40%。果实糖含量的增加与有益微生物丰度的增加呈正相关，包括假单胞菌、芽孢杆菌、分枝杆菌、伯克霍尔德菌、链霉菌、不动杆菌、变形菌、赖氨酸杆菌、放线菌、青霉和曲霉。
苦参有机肥可以改变细菌和真菌群落的组成和功能，促进甜瓜植物根际有益细菌的生长。此外，它可以增加果实中可溶性固形物和糖的含量，达到增甜效果。这种肥料可作为甜瓜种植中的果实增甜剂，提高果实的含糖量，从而提高果实的甜度。 © 2022 英国化学学会。
