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

doi:10.3969/j.issn.1000-2006.2016.05.010

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2016, Vol. 59 ›› Issue (05): 61-66.doi: 10.3969/j.issn.1000-2006.2016.05.010

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

HONG Wenjun¹, HUANG Jiuxiang¹, SHEN Changqing¹, XU Jianxin², ZHUANG Xueying^1*

1.South China Limstone Plants Research Center, College of Forestry and Landscape Architecture, South China Agricultural University,Guangzhou 510642,China;
2.Shenzhen Tech and Ecology &
Environment Co., Ltd., Shenzhen 518040, China

Online:2016-10-18 Published:2016-10-18

Abstract

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.

CLC Number:

S718.4

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, 59(05): 61-66.

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

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