Abstract

The activities and gene expression of antioxidative enzymes and the ROS content were analyzed in two typical storage-tolerant cultivars (Xushu 32 and Shangshu 19) and another two storage-sensitive cultivars (Yanshu 25 and Sushu 16) to explore the association between the storage capacity of sweetpotato (Ipomoea batatas (L.) Lam) and ROS scavenging capability. The storage roots of the storage-tolerant cultivars maintained higher activities and expression levels of antioxidative enzymes, including ascorbate peroxidase (APX), peroxidase (POD), catalase (CAT), and superoxide dismutase (SOD); lower activity and expression of lipoxygenase (LOX); and lower accumulation of ROS metabolites compared with the storage-sensitive cultivars. The antioxidative capability and ROS parameters of leaves were positively correlated with those of storage roots. Our results provide valuable insight for evaluating the storability of sweetpotato cultivars by analyzing the capabilities of the antioxidative system and the contents of ROS metabolites.

Details

Title
Antioxidative capacity is highly associated with the storage property of tuberous roots in different sweetpotato cultivars
Author
Tang, Jun 1 ; Si-Qi, Wang 2 ; Kang-Di, Hu 2 ; Zhong-Qin, Huang 1 ; Yan-Hong, Li 2 ; Han, Zhuo 2 ; Xiao-Yan, Chen 2 ; Lan-Ying, Hu 3 ; Gai-Fang, Yao 2 ; Zhang, Hua 2   VIAFID ORCID Logo 

1  Xuzhou Institute of Agricultural Sciences of the Xuhuai District of Jiangsu Province, Xuzhou, Jiangsu, P.R. China 
2  School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, P.R. China 
3  School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui, P.R. China; Anhui Province Key Laboratory of Functional Compound Seasoning, Anhui Qiangwang seasoning Food Co., Ltd., Jieshou, P.R. China 
Pages
1-10
Publication year
2019
Publication date
Jul 2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-019-47604-8
ProQuest document ID
2267388316
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.