Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (30): 29-34.doi: 10.11924/j.issn.1000-6850.casb2021-0578

Special Issue: 生物技术 油料作物

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Sugar Accumulation Characteristics and Sucrose Metabolism Enzyme Activities of Peanut During Seed Development

LIU Yonghui(), SHEN Yi, SHEN Yue, LIANG Man, CHEN Zhide()   

  1. Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014
  • Received:2021-06-03 Revised:2021-09-13 Online:2022-10-25 Published:2022-10-27
  • Contact: CHEN Zhide E-mail:yonghuiliu_126@126.com;chen701865@aliyun.com

Abstract:

The sugar content of peanut seed is closely related to its edible quality and processing characteristics. In order to clarify the characteristics of sugar accumulation and the relationship between sucrose content and sucrose metabolism related enzyme activities during seed development, three peanut varieties with different sucrose contents were used as the materials, the contents of total soluble sugar, sucrose, fructose, glucose and the activities of key enzymes in sucrose metabolism, such as sucrose phosphate synthase (SPS), sucrose synthase (SS), neutral invertase (NI) and acid invertase (SAI), were compared at different stages of seed development. The results showed that the changes of sugar component content and enzyme activity in different varieties during seed development were similar. SS activity value was the highest in both synthetic direction and decomposition direction. The correlation analysis showed that the sucrose content at the late development stage was significantly negatively correlated with NI and significantly positively correlated with SPS. It is speculated that the sucrose content can be increased by regulating the activities of NI and SPS during the seed maturing period.

Key words: peanut, seed development, sugar accumulation characteristics, sucrose metabolism enzyme

CLC Number: