Comparative profiles of the cuticular chemicals and transpiration barrier properties in various organs of Chinese flowering cabbage and Chinese kale

文献类型： 外文期刊

第一作者： Huang, Hua

作者： Huang, Hua;Hu, Ying;Li, Fengjun;Shan, Youxia;Lian, Qiaoqiao;Jiang, Yueming;Huang, Hua;Huang, Hua;Huang, Hua;Hu, Ying;Li, Fengjun;Shan, Youxia;Lian, Qiaoqiao;Jiang, Yueming;Wang, Ling

作者机构：

期刊名称：PHYSIOLOGIA PLANTARUM （ 影响因子：5.081； 五年影响因子：5.12 ）

ISSN： 0031-9317

年卷期： 2022 年 174 卷 2 期

页码：

收录情况： SCI

摘要： Plant cuticle as hydrophobic barrier covers almost all aerial plant organs. Herein the cuticular chemical components and the transpiration of various organs of Chinese flowering cabbage (CFC) and Chinese kale (CK) were comprehensively characterized. Numerous species- and organ-specific differences in morphological, chemical, and physiological levels were found. The various organs were relatively smooth in surface for CFC but glaucous with hollow tube- and plate-type crystals for CK. The chemical composition of cuticular waxes were very-long chain n-alkanes, ketones, secondary alcohols with a prominent carbon chain of C-29 in CK, primary alcohols dominated by C-26, and aldehydes prominently C-30 in CFC. Cutin monomers accumulated with similar levels as waxes and were dominated by alpha,omega-dicarboxylic acids and fatty acids without added groups. The minimum water conductance differed considerably among species and various organs ranging between 8.9 x 10(-5) (CK leaf) and 3.7 x 10(-4) m s(-1) (CFC leaf petiole). These differences in transpiration properties were proposed to be largely related to the cuticular chemicals in various organs and species. The presented results provide further insights to link the transpiration barrier functions with surface characteristics and cuticular chemicals.

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