AUTHOR=Yu Lixia , Pei Jialong , Zhao Yihe , Wang Shuguang 

TITLE=Physiological Changes of Bamboo (Fargesia yunnanensis) Shoots During Storage and the Related Cold Storage Mechanisms

JOURNAL=Frontiers in Plant Science

VOLUME=Volume 12 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2021.731977

DOI=10.3389/fpls.2021.731977

ISSN=1664-462X

ABSTRACT=The mechanisms for physiological senescence in bamboo shoots after harvest remain unclear. This study investigated physiological changes in Fargesia yunnanensis shoots during storage at different temperatures. The relationship between morphological and physiological changes in bamboo shoots during storage was also analyzed. The results show that cold storage can reduce weight loss, browning, respiration rates, and sugar degradation in bamboo shoots; decrease related enzymatic activities; and inhibit the increase in lignin and cellulose content. The quality of bamboo shoots declines more during the first 3 d after harvesting than it does during subsequent periods. The increase in the degree of lignification, fibrosis, and browning is the main reason for senescence and for the decline in quality of bamboo shoots after harvest. Low temperatures had better inhibitory effects on browning than they did on lignification and fibrosis. Nonstructural carbohydrates in bamboo shoots are degraded and flow into sheath and shoot respiration, phenol synthesis, and shoot fibrosis and lignification at room temperature, but only flow into sheath respiration, shoot fibrosis, and lignification at cold temperatures. Soluble protein and free amino acids are primarily distributed into shoot and sheath respiration and into phenol synthesis at room temperature, but that process is well inhibited at cold temperatures. Bamboo shoots, once removed from cold storage, should be consumed rapidly because enzyme activity recovers quickly. This research provides new theoretical information on the preservation of bamboo shoots.