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

• DOI: 10.3389/fpls.2021.781987
• Publication Date: 2021-11-30T23:00:43Z
• Authors: Guiping Cheng; Ling Wang; Hairong Wu; Xinfan Yu; Nan Zhang; Xiaorong Wan; Lihong He; Hua Huang
• Keywords: Tepal; Cuticle (hair); Petal; Epicuticular wax; Cut flowers

The vase life of cut flowers is largely affected by post-harvest water loss. Cuticular wax the primary barrier to uncontrolled loss for aerial plant organs. Studies on leaf cuticular transpiration have been widely conducted; however, little known about in flowers. Here, rate and composition three lily cultivars were determined. minimum conductance tepal cuticles was higher at green bud than open flower stage. Lily exhibited cultivar- organ-specific differences, where from tepals leaves 'Huang Tianba' 'Tiber' cultivar. overall coverage compared that leaves. Very-long-chain aliphatics main constituents dominated n-alkanes with carbon (C) chain lengths C27 C29, C29 C31 waxes, respectively. Primary alcohols fatty acids as well small amounts alkyl esters, ketones, branched or unsaturated also detected both depending cultivar organ. In addition, chain-length distributions similar between compound classes within cultivars, whereas predominant C-chain substantially different This suggests less effective provided waxes may result shorter cuticle, those cuticle. These findings provide further insights support exploration potential techniques extending shelf based properties.