Hongfang Zhu^* , Lu Gao^* , Xiaoyan He , Xiaofeng Li , Dandan Xi , Yuying Zhu

Horticulture Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
* These authors contributed equally to this work
Author    Correspondence author
Molecular Plant Breeding, 2023, Vol. 14, No. 8   doi: 10.5376/mpb.2023.14.0008
Received: 21 Mar., 2023    Accepted: 28 Mar., 2023    Published: 10 Apr., 2023

This article was first published in Molecular Plant Breeding in Chinese, and here was authorized to translate and publish the paper in English under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Zhu H.F., Gao L., He X.Y., Li X.F., Xi D.D., and Zhu Y.Y., 2023, Effects of high temperature and waterlogging stress on cellulase activity of non-heading Chinese cabbage, Molecular Plant Breeding, 14(8): 1-10 (doi: 10.5376/mpb.2023.14.0008)

Two non-heading Chinese cabbage varieties 'Heiyoudong' and 'Suzhouqing' were used as materials to study the effects of high temperature and waterlogging stress on the activities of enzymes related to cellulose synthesis in non-heading Chinese cabbage. The two varieties had different resistance to high temperature and waterlogging. Three temperature gradients of 24℃, 35℃ and 40℃ were set, and each temperature was set two treatments, waterlogging and non-waterlogging. The results showed that under high temperature stress, the CesA, SS, and KOR enzyme activities of 'Heiyoudong' and 'Suzhouqing' showed a trend of first increasing and then decreasing, while the trend of CE enzyme activity was opposite. Under the combined stress of high temperature and waterlogging, the changed trend of the enzyme activities related to cellulose synthesis in 'Heiyoudong' and 'Suzhouqing' is similar to that of a single high temperature stress, but the degree of impact is greater than that of a single high temperature stress. In addition, regardless of high temperature stress, high temperature and waterlogging combined stress, the increase in CesA, SS, and KOR activities in 'Heiyoudong' was greater than that of 'Suzhouqing', but the decrease was less than that of 'Suzhouqing'; The increase in CE activity of 'Suzhouqing' is less than that of 'Suzhouqing', but the decrease rate is greater than that of 'Suzhouqing'.

Non-heading Chinese cabbage; High temperature; Waterlogging; Cellulase enzyme