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Analysis of gas exchange, stomatal behaviour and micronutrients uncovers dynamic response and adaptation of tomato plants to monochromatic light treatments

Citation

O'Carrigan, A and Babla, M and Wang, F and Liu, X and Mak, M and Thomas, R and Bellotti, B and Chen, Z-H, Analysis of gas exchange, stomatal behaviour and micronutrients uncovers dynamic response and adaptation of tomato plants to monochromatic light treatments, Plant Physiology and Biochemistry, 82 pp. 105-115. ISSN 0981-9428 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 Elsevier Masson SAS All rights reserved

DOI: doi:10.1016/j.plaphy.2014.05.012

Abstract

Light spectrum affects the yield and quality of greenhouse tomato, especially over a prolonged period of monochromatic light treatments. Physiological and chemical analysis was employed to investigate the influence of light spectral (blue, green and red) changes on growth, photosynthesis, stomatal behaviour, leaf pigment, and micronutrient levels. We found that plants are less affected under blue light treatment, which was evident by the maintenance of higher A, gs, Tr, and stomatal parameters and significantly lower VPD and Tleaf as compared to those plants grown in green and red light treatments. Green and red light treatments led to significantly larger increase in the accumulation of Fe, B, Zn, and Cu than blue light. Moreover, guard cell length, width, and volume all showed highly significant positive correlations to gs, Tr and negative links to VPD. There was negative impact of monochromatic lights-induced accumulation of Mn, Cu, and Zn on photosynthesis, leaf pigments and plant growth. Furthermore, most of the light-induced significant changes of the physiological traits were partially recovered at the end of experiment. A high degree of morphological and physiological plasticity to blue, green and red light treatments suggested that tomato plants may have developed mechanisms to adapt to the light treatments. Thus, understanding the optimization of light spectrum for photosynthesis and growth is one of the key components for greenhouse tomato production.

Item Details

Item Type:Refereed Article
Keywords:guard cell geometry, photosynthesis, monochromatic light, micronutrients, stomatal aperture, Solanum lycopersicum L
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Plant Physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Berry Fruit (excl. Kiwifruit)
Author:Wang, F (Miss Feifei Wang)
ID Code:98536
Year Published:2014
Web of Science® Times Cited:10
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2015-02-18
Last Modified:2017-11-02
Downloads:0

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