Photosynthetic responses to chromosome doubling in relation to leaf anatomy in Lonicera japonica subjected to water stress

Functional Plant Biology : FPB
Wei-Dong LiGao-Ming Jiang

Abstract

Gas exchange, chlorophyll fluorescence, and contents of some metabolites in two Japanese honeysuckle (Lonicera japonica Thunb.) cultivars, Damaohua (2n = 2x) and Jiufengyihao (2n = 4x), were compared with explore the function of chromosome doubling under water stress conditions. Water stress significantly decreased net photosynthesis rate, stomatal conductance, and transpiration rate of both cultivars. It also decreased electron transport rate, effective quantum yield of Photosystem II, photochemical quenching, and starch content, but increased non-photochemical quenching and contents of total soluble sugars, proline, and malondialdehyde. However, the tetraploid cultivar showed higher resistance to water stress than the diploid, as indicated by the fact that gas exchange, chlorophyll fluorescence, and metabolites were less affected for the tetraploid than the diploid. Moreover, the tetraploid recovered more quickly than the diploid after re-watering. Morphological and anatomical analysis further revealed that the tetraploid possessed less whole plant leaf area, higher leaf mass per unit area, thicker epidermis (both upper and lower) and palisade tissue, as well as denser pubescence. All of those specialised structures caused by...Continue Reading

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Citations

Apr 5, 2018·Frontiers in Plant Science·Hanne E R DenaeghelMarie-Christine Van Labeke
Mar 25, 2020·Phytochemistry Reviews : Proceedings of the Phytochemical Society of Europe·Yuke LiQiang Fu
Feb 19, 2011·Plant Signaling & Behavior·Panagiota FilippouVasileios Fotopoulos
Mar 24, 2018·American Journal of Botany·Niels J F De BaerdemaekerKathy Steppe
Jul 6, 2016·Frontiers in Plant Science·Adja M DialloAnders Ræbild
Jan 1, 2011·Russian Journal of Plant Physiology : a Comprehensive Russian Journal on Modern Phytophysiology·W D LiD Xing
Apr 28, 2020·The Plant Journal : for Cell and Molecular Biology·Sung Don LimJohn C Cushman
Apr 21, 2010·Plant Signaling & Behavior·Zhenzhu XuHideyuki Shimizu
Nov 19, 2020·Proceedings. Biological Sciences·Kirsten Bomblies
Mar 23, 2021·The Plant Cell·Yves Van de PeerDouglas E Soltis
Apr 4, 2021·Plant Physiology and Biochemistry : PPB·Radia LourkistiJérémie Santini
Aug 18, 2021·The Plant Journal : for Cell and Molecular Biology·Miguel Barceló-AnguianoJuan M Losada

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