Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers

The vase life of cut flowers is largely affected by post-harvest water loss. Cuticular wax is the primary barrier to uncontrolled water loss for aerial plant organs. Studies on leaf cuticular transpiration have been widely conducted; however, little is known about cuticular transpiration in flowers....

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Autores principales:	Guiping Cheng, Ling Wang, Hairong Wu, Xinfan Yu, Nan Zhang, Xiaorong Wan, Lihong He, Hua Huang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	lily flowers cuticular wax leaf tepal transpiration Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/c792d67cd0f44452ac8b2b710f6f95db
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spelling	oai:doaj.org-article:c792d67cd0f44452ac8b2b710f6f95db2021-11-30T19:10:18ZVariation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers1664-462X10.3389/fpls.2021.781987https://doaj.org/article/c792d67cd0f44452ac8b2b710f6f95db2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.781987/fullhttps://doaj.org/toc/1664-462XThe vase life of cut flowers is largely affected by post-harvest water loss. Cuticular wax is the primary barrier to uncontrolled water loss for aerial plant organs. Studies on leaf cuticular transpiration have been widely conducted; however, little is known about cuticular transpiration in flowers. Here, the cuticular transpiration rate and wax composition of three lily cultivars were determined. The minimum water conductance of tepal cuticles was higher at the green bud than open flower stage. Lily cuticular transpiration exhibited cultivar- and organ-specific differences, where transpiration from the tepals was higher than leaves and was higher in the ‘Huang Tianba’ than ‘Tiber’ cultivar. The overall wax coverage of the tepals was higher compared to that of the leaves. Very-long-chain aliphatics were the main wax constituents and were dominated by n-alkanes with carbon (C) chain lengths of C27 and C29, and C29 and C31 in the tepal and leaf waxes, respectively. Primary alcohols and fatty acids as well as small amounts of alkyl esters, ketones, and branched or unsaturated n-alkanes were also detected in both tepal and leaf waxes, depending on the cultivar and organ. In addition, the chain-length distributions were similar between compound classes within cultivars, whereas the predominant C-chain lengths were substantially different between organs. This suggests that the less effective transpiration barrier provided by the tepal waxes may result from the shorter C-chain aliphatics in the tepal cuticle, compared to those in the leaf cuticle. These findings provide further insights to support the exploration of potential techniques for extending the shelf life of cut flowers based on cuticular transpiration barrier properties.Guiping ChengLing WangHairong WuXinfan YuNan ZhangXiaorong WanLihong HeHua HuangFrontiers Media S.A.articlelily flowerscuticular waxleaftepaltranspirationPlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	lily flowers cuticular wax leaf tepal transpiration Plant culture SB1-1110
spellingShingle	lily flowers cuticular wax leaf tepal transpiration Plant culture SB1-1110 Guiping Cheng Ling Wang Hairong Wu Xinfan Yu Nan Zhang Xiaorong Wan Lihong He Hua Huang Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers
description	The vase life of cut flowers is largely affected by post-harvest water loss. Cuticular wax is the primary barrier to uncontrolled water loss for aerial plant organs. Studies on leaf cuticular transpiration have been widely conducted; however, little is known about cuticular transpiration in flowers. Here, the cuticular transpiration rate and wax composition of three lily cultivars were determined. The minimum water conductance of tepal cuticles was higher at the green bud than open flower stage. Lily cuticular transpiration exhibited cultivar- and organ-specific differences, where transpiration from the tepals was higher than leaves and was higher in the ‘Huang Tianba’ than ‘Tiber’ cultivar. The overall wax coverage of the tepals was higher compared to that of the leaves. Very-long-chain aliphatics were the main wax constituents and were dominated by n-alkanes with carbon (C) chain lengths of C27 and C29, and C29 and C31 in the tepal and leaf waxes, respectively. Primary alcohols and fatty acids as well as small amounts of alkyl esters, ketones, and branched or unsaturated n-alkanes were also detected in both tepal and leaf waxes, depending on the cultivar and organ. In addition, the chain-length distributions were similar between compound classes within cultivars, whereas the predominant C-chain lengths were substantially different between organs. This suggests that the less effective transpiration barrier provided by the tepal waxes may result from the shorter C-chain aliphatics in the tepal cuticle, compared to those in the leaf cuticle. These findings provide further insights to support the exploration of potential techniques for extending the shelf life of cut flowers based on cuticular transpiration barrier properties.
format	article
author	Guiping Cheng Ling Wang Hairong Wu Xinfan Yu Nan Zhang Xiaorong Wan Lihong He Hua Huang
author_facet	Guiping Cheng Ling Wang Hairong Wu Xinfan Yu Nan Zhang Xiaorong Wan Lihong He Hua Huang
author_sort	Guiping Cheng
title	Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers
title_short	Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers
title_full	Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers
title_fullStr	Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers
title_full_unstemmed	Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers
title_sort	variation in petal and leaf wax deposition affects cuticular transpiration in cut lily flowers
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/c792d67cd0f44452ac8b2b710f6f95db
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Variation in Petal and Leaf Wax Deposition Affects Cuticular Transpiration in Cut Lily Flowers

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