A novel feature of structural variegation in leaves of the tropical plant Schismatoglottis calyptrata

H., Tsukaya and H., Okada and Maryati Mohamed, Datin (2004) A novel feature of structural variegation in leaves of the tropical plant Schismatoglottis calyptrata. Journal of Plant Research, 117 (6). pp. 477-480. ISSN 0918-9440

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Abstract

We report a novel feature of leaf variegation. As is often the case in tropical forest floor herbs, Schismatoglottis calyptrata leaves feature structural variegation. Examination of leaf anatomy in S. calyptrata revealed a novel feature of structural variegation, which was generated by variation in the spatial arrangement of the adaxial-most tip of the palisade cells. In fully green leaf parts, contact between the adaxial-most tip of the palisade cells and the cone-shaped base of the outer epidermis cells was tight, and palisade cells were arranged radially around each epidermal cell. In dull, grayish-green leaf parts, the contact was loose, and. no particular spatial arrangement of palisade cells relative to epidermal cells was observed. This feature of structural variation could be disadvantageous for photosynthesis efficiency in view of the hypothesis that, for rainforest herbs, cone-shaped epidermal cells may function as lenses. However, the high frequency of leaf variegation of S. calyptrata in natural habits suggests that this structural variegation plays an unknown advantageous role.

Item Type: Article
Uncontrolled Keywords: Cell-cell contact, Epidermis, Leaf, Palisade cells, Schismatoglottis calyptrata, Variegation
Subjects: S Agriculture > SB Plant culture
Divisions: SCHOOL > Institute for Tropical Biology and Conservation
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 17 Oct 2011 09:55
Last Modified: 16 Oct 2017 08:05
URI: http://eprints.ums.edu.my/id/eprint/960

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