玉米苗第一伸长节间内皮层的愈伤木层素的脂肪族成分的组成。
Composition of the aliphatic components of suberin of the endodermal fraction from the first internode of etiolated sorghum seedlings.
机构信息
Department of Agricultural Chemistry and Program in Biochemistry and Biophysics, Washington State University, Pullman, Washington 99164.
出版信息
Plant Physiol. 1979 Mar;63(3):433-5. doi: 10.1104/pp.63.3.433.
Abstract
The stems from etiolated seedlings of Sorghum bicolor were separated into epidermal and endodermal fractions by manually removing the stele from the cortex. The epidermal fraction was shown to contain a lipid polymer whose monomeric composition was characteristic of cutin with dihydroxyhexadecanoic acid as a major component (25%). The endodermal fraction contained a lipid polymer whose monomeric composition was characteristic of suberin: hexadecanoic acid 12%, octadecenol 6%, octadecenoic acid 23%, omega-hydroxyhexadecanoic acid 17%, hexadecanedioc acid 8%, omega-hydroxyoctadecenoic acid 8%, and octadecenedioic acid 12%. This endodermal polymer is thought to be the suberin component of the Casparian band.
摘要
将高粱黄化幼苗的茎分离成表皮和内皮层部分，通过从皮层中去除中柱手动进行。表皮部分被证明含有一种脂质聚合物，其单体组成特征是具有二羟基十六烷酸作为主要成分（25%）的角鲨烯。内皮层部分含有一种脂质聚合物，其单体组成特征是具有栓质：十六烷酸 12%，十八碳烯醇 6%，十八烯酸 23%，ω-羟基十六烷酸 17%，十六烷二酸 8%，ω-羟基十八烯酸 8%和十八碳二酸 12%。这种内皮层聚合物被认为是凯氏带的栓质成分。
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