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Ultra-microstructure of Epicuticular Wax on Waxless Mutant of Chinese Kale (Brassica alboglabra L. H. Bailey) |
ZHANG De-shuang1,SUN Lei1,2,ZHANG Feng-lan1,HE Hong-ju1,YU Shuan-cang1,YU Yang-jun1,ZHAO Xiu-yun1,ZHAO Xue-zhi1,WANG Wei-hong1,SU Tong-bing1,LU Gui-xiang1 |
(1Beijing Vegetable Research Center,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097,China;2Yantai University,Yantai 264005,Shandong,China) |
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Abstract Epicuticular waxes of leaves at 4 developing stages in Chinese kale(Brassica alboglabra L. H.Bailey)waxless mutant named‘Zi.zhonghuajielan’and wild type(WT)were observed by scanning electron microscope(SEM).Meanwhile,crude weight,VC,soluble sugar,crude fiber,protein and anthocyanins were measured. The results showed that epicuticular waxes at 4 growth periods of wild type were apparently higher than those of mutant. Epicuticular waxes at leaf abaxial of mutant and WT were higher than those of leaf adaxial.Epicuticular waxes at leaf abaxial of WT degenerated slowly than those of leaf adaxial. VC in waxless mutant was higher than that of WT,and dry weight of crude weight in waxless mutant was lower than that of WT.Thus,waxless mutant in Chinese kale can supply higher nutrition of VC and anthocyanins.Gene controlled wax biosynthesis in Chinese kale waxless mutant was recessive,while gene or genes controlled anthocyanins biosynthesis were dominant,compared to WT.Furthermore brilliant green,waxless and purple Chinese kale uncooked is more suitable for eating.
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Received: 14 July 2015
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