Chlorophyll biosynthesis and epidermal characteristics of the leaves of a variegated variety vs. all-green variety of Chlorophytum capense
文献类型： 外文期刊
第一作者： Zhao, Y. Q.
作者： Zhao, Y. Q.;Dong, L. H.;Huang, B.;Ding, C. B.;Chen, Y. E.;Yuan, M.;Zhang, Z. W.;Yuan, S.;Jiang, Y.
作者机构：
关键词： chlorophyll metabolic intermediates; epidermal micro-morphological characteristics; stomatal characteristics; variegated spider plant
期刊名称：PHOTOSYNTHETICA （ 影响因子：3.189； 五年影响因子：3.38 ）
ISSN： 0300-3604
年卷期： 2019 年 57 卷 4 期
页码：
收录情况： SCI
摘要： Chlorophytum capense var. medio-pictum is widely used as a houseplant with its central yellowish white stripe in green leaves. This study investigated chlorophyll biosynthesis, and epidermal characteristics in leaf stripes of different color. The results showed that yellowish white leaf stripes (YS) have a lower 5-aminolevulinic acid (ALA) content than that of green stripes. Meanwhile, YS had higher coproporphyrinogen III (Coprogen III) and Mg-protoporphyrin monomethyl ester (Mpe) contents, but the lower content of protoporphyrinogen IX (Proto IX) and protochlorophyllide (Pchlide) compared to green stripes, suggesting that the occurrence of yellowish white stripes may be attributed to the blocked ALA synthesis and the inhibited conversions from Coprogen III to Proto IX and Mpe to Pchlide. In addition, the upper and lower epidermal cells in YS were larger than those in green stripes. The chloroplasts developed normally in the guard cells of the YS epidermis, though almost no chloroplasts were detected in YS mesophyll cells.
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