Composition, Vigor, and Proteome of Mature Soybean Seeds Developed under High Temperature

By C. Ren, K. Bilyeu, P. Beuselinck. 2009

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The effects of high temperature treatment on soybean [Glycine max (L.) Merr.] seed composition, vigor, and proteome were investigated using mature dry seeds harvested from plants grown in environment-controlled chambers. High day/night temperatures (37/30°C) from stages R5 through R8 altered ratios of individual fatty acids to total fatty acid compared to the control (27/18°C). Concentration of sugars decreased, but total protein and phytic acid concentration were unchanged. High temperature resulted in a greater propor- tion of abnormal seeds, but normal-appearing seed exhibited reduced germination and vigor. Proteomic analysis detected 20 protein identities whose accumulations were changed by the high temperature. Fourteen spots were identified as seven subunits of seed storage proteins. The remaining six proteins were identified as those responding to abiotic stresses or having a function in respiration: (i) sucrose binding protein, (ii) Class III acidic endochitinase, (iii) heat shock protein (HSP22), (iv) late embryo abundant protein, (v) Bowman-Birk proteinase inhibitor, and (vi) formate dehydrogenase. High temperature during seed development changed soybean seed composition and decreased seed vigor, but also changed seed protein expression profiles.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/b314c4a72864da73f04b3588355b7c955c2083da

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Citations in the corpus

Increased growing temperature reduces content of polyunsaturated fatty acids in four oilseed crops (2013, background): “322 and Precipitation Effects on Soybean Oil and Fatty Acid Profiles.”
Food crops face rising temperatures: An overview of responses, adaptive mechanisms, and approaches to improve heat tolerance (2016, background): “…has been reported in many legumes including soybean (Glycine max L. Merrill; Ortiz & Page 3 of 42 Cardemil, 2001; Ren, Bilyeu, & Beuselinck, 2009), pea (Pisum sativum L.; Nemeskeri, 2004; Ren et al., 2009), lentil (Lens culinaris Medik; Chakraborty & Pradhan, 2011), mungbean (Phaseolus aureus Roxb.”
Plant tolerance to high temperature in a changing environment: scientific fundamentals and production of heat stress-tolerant crops (2013, background): “Heat stress during seed development may result in reduced germination and loss of vigor, leading to reduced emergence and seedling establishment as has been shown for several crop plants (Akman, 2009; Ren et al., 2009).”
Heat stress in grain legumes during reproductive and grain-filling phases (2017, background): “In soybean, heat stress increased palmitic, stearic and oleic acid contents but decreased linolenic and linoleic acid contents, leading to deterioration in grain vigour (Ren et al. 2009).”
Impact of heat stress during seed development on soybean seed metabolome (2016, background): “2005), and even moderately elevated temperatures (C30 C) can lead to developmental irregularities and cause detrimental effects on seed viability (Dornbos and Mullen 1991; Heatherly 1996; Ren et al. 2009; Smith et al. 2008).”