Effect of sensitivity to abscisic acid on scaling relationships for biomass production rates and body size in Arabidopsis thaliana |
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Authors: | Hao Zhang Gen-Xuan Wang Zhu-Xia Shen Xing-Zheng Zhao Mu-Qing Qiu |
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Institution: | (1) State Key Laboratory of Plant Physiology & Biochemical, College of Life Sciences, Zheijiang University, 310029 Hangzhou, Zhejiang Province, P R China |
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Abstract: | The allometric relationships for plant daily biomass production rates, different measures of body size (dry weight and length)
and photosynthetic biomass per plant are reported for two mutants of Arabidopsis thaliana (abi1-1, insensitive to ABA; era1-2, hypersensitive to ABA). Scaling relationships, such as daily rate of growth (G) vs body mass (M), plant body length or plant height (L) vs body mass (M), photosynthetic biomass (M
p
) vs non-photosynthetic biomass (M
n
), and daily rate of growth (G) vs. photosynthetic biomass (M
p
) were significantly different in abi1-1 and era1-2. It is implied that the sensitivity to abscisic acid may change the scaling relationships for plant biomass production rate
and body size in Arabidopsis thaliana. Because these scaling relationships are closely related to sensitivity to abscisic acid, they are of importance for phytohormonal
ecology. |
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Keywords: | Allometric relationship Body size Daily biomass production Photosynthetic biomass Plant biomass |
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