Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars

Sweet potato decays easily due to its high respiration rate and reactive oxygen species (ROS) accumulation during postharvest storage. In this study, we explored the relationship between antioxidant capacity in leaves and storage properties in different sweet potato cultivars, the tuberous roots of...

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Autores principales:	Hui-Hui Song, Zhi-Lin Zhou, Dong-Lan Zhao, Jun Tang, Yan-Hong Li, Zhuo Han, Xiao-Yan Chen, Kang-Di Hu, Gai-Fang Yao, Hua Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	sweet potato storage property antioxidant capacity reactive oxygen species (ROS) correlation analysis Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/7c7c74534f0c41638dc76fd0d56bbe36
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spelling	oai:doaj.org-article:7c7c74534f0c41638dc76fd0d56bbe362021-11-30T11:52:41ZStorage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars1664-462X10.3389/fpls.2021.696142https://doaj.org/article/7c7c74534f0c41638dc76fd0d56bbe362021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.696142/fullhttps://doaj.org/toc/1664-462XSweet potato decays easily due to its high respiration rate and reactive oxygen species (ROS) accumulation during postharvest storage. In this study, we explored the relationship between antioxidant capacity in leaves and storage properties in different sweet potato cultivars, the tuberous roots of 10 sweet potato cultivars were used as the experimental materials to analyze the storage property during storage at 11–15°C. According to the decay percentage after 290 days of storage, Xu 32 was defined as a storage-tolerant cultivar (rot percentage less than 25%); Xu 55-2, Z 15-1, Shangshu 19, Yushu, and Zhezi 3 as above-moderate storage-tolerant cultivars (rot percentage ranging from 25 to 50%); Sushu 16, Yanshu 5, and Hanzi as medium-storable cultivars (rot percentage 50–75%); and Yan 25 as a storage-sensitive cultivar (rot percentage greater than 75%). Meanwhile, analysis of the α-amylase activity in root tubers of the 10 sweet potato cultivars during storage indicated that α-amylase activity was lowest in the storage-tolerant cultivar Xu 32 and highest in the storage-sensitive cultivar Yan 25. Evaluation of antioxidant enzyme activities and ROS content in the leaves of these 10 cultivars demonstrated that cultivar Xu 32, which showed the best storage property, had higher antioxidant enzyme activity [superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD)] but lower lipoxygenase (LOX) activity, hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents, and superoxide anion radical (O2⋅–) production rates compared with those of the storage-sensitive cultivar Yan 25 and the medium-storability cultivars Hanzi, Yanshu 5, and Sushu 16. Additionally, principal component analysis (PCA) suggested that sweet potato cultivars with different storage properties were clustered separately. Correlation and heat map analysis further indicated that CAT, APX, POD, and SOD activities were negatively correlated with α-amylase activity, while LOX activity and MDA and H2O2 contents were negatively correlated with the storage property of sweet potato. Combined, our findings revealed that storage property is highly correlated with antioxidant capacity in sweet potato leaves and negatively correlated with α-amylase activity in tuberous roots, which provides a convenient means for the screening of storage-tolerant sweet potato cultivars.Hui-Hui SongZhi-Lin ZhouDong-Lan ZhaoJun TangYan-Hong LiZhuo HanXiao-Yan ChenKang-Di HuGai-Fang YaoHua ZhangFrontiers Media S.A.articlesweet potatostorage propertyantioxidant capacityreactive oxygen species (ROS)correlation analysisPlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sweet potato storage property antioxidant capacity reactive oxygen species (ROS) correlation analysis Plant culture SB1-1110
spellingShingle	sweet potato storage property antioxidant capacity reactive oxygen species (ROS) correlation analysis Plant culture SB1-1110 Hui-Hui Song Zhi-Lin Zhou Dong-Lan Zhao Jun Tang Yan-Hong Li Zhuo Han Xiao-Yan Chen Kang-Di Hu Gai-Fang Yao Hua Zhang Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars
description	Sweet potato decays easily due to its high respiration rate and reactive oxygen species (ROS) accumulation during postharvest storage. In this study, we explored the relationship between antioxidant capacity in leaves and storage properties in different sweet potato cultivars, the tuberous roots of 10 sweet potato cultivars were used as the experimental materials to analyze the storage property during storage at 11–15°C. According to the decay percentage after 290 days of storage, Xu 32 was defined as a storage-tolerant cultivar (rot percentage less than 25%); Xu 55-2, Z 15-1, Shangshu 19, Yushu, and Zhezi 3 as above-moderate storage-tolerant cultivars (rot percentage ranging from 25 to 50%); Sushu 16, Yanshu 5, and Hanzi as medium-storable cultivars (rot percentage 50–75%); and Yan 25 as a storage-sensitive cultivar (rot percentage greater than 75%). Meanwhile, analysis of the α-amylase activity in root tubers of the 10 sweet potato cultivars during storage indicated that α-amylase activity was lowest in the storage-tolerant cultivar Xu 32 and highest in the storage-sensitive cultivar Yan 25. Evaluation of antioxidant enzyme activities and ROS content in the leaves of these 10 cultivars demonstrated that cultivar Xu 32, which showed the best storage property, had higher antioxidant enzyme activity [superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD)] but lower lipoxygenase (LOX) activity, hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents, and superoxide anion radical (O2⋅–) production rates compared with those of the storage-sensitive cultivar Yan 25 and the medium-storability cultivars Hanzi, Yanshu 5, and Sushu 16. Additionally, principal component analysis (PCA) suggested that sweet potato cultivars with different storage properties were clustered separately. Correlation and heat map analysis further indicated that CAT, APX, POD, and SOD activities were negatively correlated with α-amylase activity, while LOX activity and MDA and H2O2 contents were negatively correlated with the storage property of sweet potato. Combined, our findings revealed that storage property is highly correlated with antioxidant capacity in sweet potato leaves and negatively correlated with α-amylase activity in tuberous roots, which provides a convenient means for the screening of storage-tolerant sweet potato cultivars.
format	article
author	Hui-Hui Song Zhi-Lin Zhou Dong-Lan Zhao Jun Tang Yan-Hong Li Zhuo Han Xiao-Yan Chen Kang-Di Hu Gai-Fang Yao Hua Zhang
author_facet	Hui-Hui Song Zhi-Lin Zhou Dong-Lan Zhao Jun Tang Yan-Hong Li Zhuo Han Xiao-Yan Chen Kang-Di Hu Gai-Fang Yao Hua Zhang
author_sort	Hui-Hui Song
title	Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars
title_short	Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars
title_full	Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars
title_fullStr	Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars
title_full_unstemmed	Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars
title_sort	storage property is positively correlated with antioxidant capacity in different sweet potato cultivars
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/7c7c74534f0c41638dc76fd0d56bbe36
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Storage Property Is Positively Correlated With Antioxidant Capacity in Different Sweet Potato Cultivars

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