Anatomical Characteristics and Environmental Adaptability of <i>Quercus aquifolioides</i> Leaf in Sejila Mountain, Southeastern Tibet

Guo Wenwen; Zhuo Mecao; He Zhu; Ren Yihua; Qu Xingle; Fang Jiangping

doi:10.11929/j.swfu.202010094

Journal of Southwest Forestry University > 2022 > 42(2): 33-38. > DOI: 10.11929/j.swfu.202010094

Guo Wenwen, Zhuo Mecao, He Zhu, Ren Yihua, Qu Xingle, Fang Jiangping. Anatomical Characteristics and Environmental Adaptability of Quercus aquifolioides Leaf in Sejila Mountain, Southeastern Tibet[J]. Journal of Southwest Forestry University, 2022, 42(2): 33-38. DOI: 10.11929/j.swfu.202010094

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Anatomical Characteristics and Environmental Adaptability of Quercus aquifolioides Leaf in Sejila Mountain, Southeastern Tibet

Guo Wenwen^1,2,3,,
Zhuo Mecao⁴,
He Zhu¹,
Ren Yihua^1,2,3,
Qu Xingle^1,2,3,
Fang Jiangping^1,2,3, ,

1.
Tibet Agricultural and Animal Husbandry University, Nyingchi Tibet 860000, China
2.
National Key Station for Field Scientific Observation & Experiment, Nyingchi Tibet 860000, China
3.
Key Laboratory of Forest Ecology in Tibet, Ministry of Education, Nyingchi Tibet 860000, China
4.
People's Government of Pai Town, Nyingchi Tibet 860000, China

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Received Date: October 30, 2020
Revised Date: November 29, 2020
Available Online: February 21, 2021
Published Date: March 19, 2022

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Abstract

Abstract

This article is to understand the changes in leaf anatomy of Quercus aquifolioides in Sejila Mountain, Southeastern Tibet, and their environmental adaptability under different altitude gradients. Paraffin section method are used to determine anatomical features of leaves of Q. aquifolioides collected from 11 altitudinal gradients. The results showed that leaves of Q. aquifolioides are heterohedral, the upper epidermis has obvious cuticle, the lower epidermis has epidermis, and the palisade tissue cells have 2–3 layers; with the increase of altitude, the thickness of leaf, upper epidermis, lower epidermis, palisade tissue and spongy tissue increased, but tightness of leaf palisade tissue, looseness of leaf spongy tissue, midrib protrusion vein decreased; plasticity index analysis showed that Q. aquifolioides had lower plasticity in leaf anatomy, representing weak adaptability to the environment; correlation analysis of Q. aquifolioides showed that there was no significant difference between the thickness of palisade tissue and thickness of spongy tissue, between the looseness of leaf spongy tissue and tightness of leaf palisade tissue, but there was significant correlation between the other indexes.
- Sejila Mountain,
- Quercus aquifolioides,
- anatomic structure,
- environmental adaptability

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