Ultraviolet-B Radiation Alters Soybean Growth and Seed Quality

Abstract

Research on the effects of ultraviolet-B (UV-B) radiation on soybean seed quality is limited. The objective of this study was to quantify UV-B doses, 0, 5, 10 & 15 kJ•m −2 •d −1 , on soybean growth and seed quality. The experiment was conducted in the Soil-Plant-Atmosphere-Research (SPAR) facility. Chambers located at the R.R.

Physiologic and Metabolic Changes in Crepidiastrum denticulatum According to Different Energy Levels of UV-B Radiation

“…Such conflicting results have been reported in many previous studies focusing on UV-B [ 6 , 28 , 29 , 30 , 31 , 32 , 33 ]. Exposure to a UV-B dose of 1.2, 4.3, 5.0, and 8.5 kJ d −1 was not found to affect growth in sunflower ( Helianthus annuus ), rosemary ( Rosmarinus officinalis ), soy bean ( Glycine max ), and basil ( Ocimum basilicum ), respectively [ 6 , 28 , 30 , 33 ]. However, biomass accumulation was inhibited in sugar beet ( Beta vulgaris ), soy bean and Arabidopsis, and maca ( Lepidium meyenii ), under 9.1, 10.0, and 18.2 kJ d −1 of UV-B, respectively [ 28 , 29 , 31 , 32 ].…”

“…It is known that exposure to high UV-B energy acts as a distress and negatively affects plant growth via ROS-mediated signaling pathway. Conversely, low UV-B energy acts as a eustress, has less harmful effects on plant growth, and renders plants tolerance against stress by increasing leaf thickness and activating defense mechanisms via specific UVR8 response pathway [ 6 , 9 , 28 ]. Such conflicting results have been reported in many previous studies focusing on UV-B [ 6 , 28 , 29 , 30 , 31 , 32 , 33 ].…”

“…Conversely, low UV-B energy acts as a eustress, has less harmful effects on plant growth, and renders plants tolerance against stress by increasing leaf thickness and activating defense mechanisms via specific UVR8 response pathway [ 6 , 9 , 28 ]. Such conflicting results have been reported in many previous studies focusing on UV-B [ 6 , 28 , 29 , 30 , 31 , 32 , 33 ]. Exposure to a UV-B dose of 1.2, 4.3, 5.0, and 8.5 kJ d −1 was not found to affect growth in sunflower ( Helianthus annuus ), rosemary ( Rosmarinus officinalis ), soy bean ( Glycine max ), and basil ( Ocimum basilicum ), respectively [ 6 , 28 , 30 , 33 ].…”

Linkages between stratospheric ozone, UV radiation and climate change and their implications for terrestrial ecosystems

“…For example, UV-B radiation can decrease protein content in some crops or increase essential fatty acids not synthesised by humans and other animals (i.e., polyunsaturated linoleic and linolenic acids), while decreasing other beneficial fatty acids, such as the monounsaturated oleic acid, as was found in a study on soybean seeds. 225 The UV-B-induced regulation of phenolic compounds can occur under low levels of UV-B radiation in many plant species, including in a range of economically important crops in which these metabolites contribute to food quality and/or value. For instance, UV-B radiation mediates increased accumulation of the potentially nutritionally-valuable flavonoid compounds, quercetin and kaempferol, in grape berry skins.…”

Effect of a mutation in Raffinose Synthase 2 (GmRS2 ) on soybean quality traits

“…The presence of the raffinose family of oligosaccharides (RFOs) in soybean, which includes raffinose and stachyose α-galactosides, is considered an antinutritional factor because humans and monogastric animals do not have α-galactosidase, the enzyme responsible for hydrolyzed RFOs (Yang et al 2014, Matei et al 2017. RFO consumption by organisms without α-galactosidase can cause organic dysfunctions such as diarrhea, nausea and flatulence (Liener 1994, Reddy et al 2016, Matei et al 2017. Stachyose is the second most significant soluble sugar in soybean, usually ranging from 1.4-4.1% (Hymowitz et al 1972, Zeng et al 2015, and leads to limitations on soybean consumption as a protein source.…”