A study on anatomical structure and adaptations to environment of three Loropetalum species(variety)

HONG Wenjun, HUANG Jiuxiang, SHEN Changqing, XU Jianxin, ZHUANG Xueying

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 40 ›› Issue (05) : 61-66.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 40 ›› Issue (05) : 61-66. DOI: 10.3969/j.issn.1000-2006.2016.05.010

A study on anatomical structure and adaptations to environment of three Loropetalum species(variety)

  • HONG Wenjun1, HUANG Jiuxiang1, SHEN Changqing1, XU Jianxin2, ZHUANG Xueying1*
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Abstract

The structure and adaptations of the leaf, stem and root in the three plants of Loropetalum were compared by leaf segregation process and paraffin sectioning method. The results showed that: L. chinense and L. chinense var. rubrum(the variety)present strong drought tolerance and hardiness, whose upper epidermis exist epidermal trichomes and thicker cuticle; leaves exist well developed palisade tissue(P)and spongy tissue(S), and the ratio of P/S is high; the stems exist well developed phloem and xylem. By comparison, L. subcordatum present more shade-tolerance, whose leaves are glabrous and cuticle is thinner; the palisade tissue and spongy tissue are loose with lower P/S and the stem has larger pith. Analysis of subordinative function showed that the rank of adaption in three plants are: Loropetalum chinense var. rubrum > L. chinense > L. subcordatum. The adaptations of the three species(variety)were evaluated based on their structural characteristics.

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HONG Wenjun, HUANG Jiuxiang, SHEN Changqing, XU Jianxin, ZHUANG Xueying. A study on anatomical structure and adaptations to environment of three Loropetalum species(variety)[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2016, 40(05): 61-66 https://doi.org/10.3969/j.issn.1000-2006.2016.05.010

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