Changes in Oil Accumulation and Fatty Acid Composition of Soybean Seeds under Salt Stress in Response to Salicylic Acid and Jasmonic Acid

2018 ◽  
Vol 65 (2) ◽  
pp. 229-236 ◽  
Author(s):  
K. Ghassemi-Golezani ◽  
S. Farhangi-Abriz
Keyword(s):  
Salicylic Acid ◽  
Fatty Acid Composition ◽  
Salt Stress ◽  
Fatty Acid ◽  
Jasmonic Acid ◽  
Acid Composition ◽  
Soybean Seeds ◽  
Oil Accumulation

scholarly journals Effect of Nitrogen Fertilisation and Inoculation with Bradyrhizobium japonicum on the Fatty Acid Profile of Soybean (Glycine max (L.) Merrill) Seeds

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 941
Author(s):  
Ewa Szpunar-Krok ◽  
Anna Wondołowska-Grabowska ◽  
Dorota Bobrecka-Jamro ◽  
Marta Jańczak-Pieniążek ◽  
Andrzej Kotecki ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Bradyrhizobium Japonicum ◽  
Field Experiments ◽  
Fatty Acid Content ◽  
Soybean Seeds ◽  
Oilseed Crop ◽  
Soybean Cultivars

Soybean is a valuable protein and oilseed crop ranked among the most significant of the major crops. Field experiments were carried out in 2016–2019 in South-East Poland. The influence of soybean cultivars (Aldana, Annushka), nitrogen fertilizer (0, 30, 60 kg∙ha−1 N) and inoculation with B. japonicum (control, HiStick® Soy, Nitragina) on the content of fatty acids (FA) in soybean seeds was investigated in a three-factorial experiment. This study confirms the genetic determinants of fatty acid composition in soybean seeds and their differential accumulation levels for C16:0, C16:1, C18:1n9, C18:2, C18:3, and C20:0 as well saturated (SFA), monounsaturated (MUFA), and polyunsaturated (PUFA) fatty acids. Increasing the rate from 30 to 60 kg ha−1 N did not produce the expected changes, suggesting the use of only a “starter” rate of 30 kg ha−1 N. Inoculation of soybean seeds with a strain of Bradyrhizobium japonicum (HiStick® Soy, BASF, Littlehampton, UK and Nitragina, Institute of Soil Science and Plant Cultivation–State Research Institute, Puławy, Poland) is recommended as it will cause a decrease in SFA and C16:0 acid levels. This is considered nutritionally beneficial as its contribution to total fatty acids determines the hypercholesterolemic index, and it is the third most accumulated fatty acid in soybean seeds. The interaction of cultivars and inoculation formulation on fatty acid content of soybean seeds was demonstrated. An increase in the value of C16:0 content resulted in a decrease in the accumulation of C18:1, C18:2, and C18:3 acids. The content of each decreased by almost one unit for every 1% increase in C16:0 content. The dominant effect of weather conditions on the FA profile and C18:2n6/C18:3n3 ratio was demonstrated. This suggests a need for further evaluation of the genetic progress of soybean cultivars with respect to fatty acid composition and content under varying habitat conditions.

Biomass, lipid content, and fatty acid composition of freshwater Chlamydomonas mexicana and Scenedesmus obliquus grown under salt stress

2013 ◽  
Vol 36 (6) ◽  
pp. 827-833 ◽  
Author(s):  
El-Sayed Salama ◽  
Hyun-Chul Kim ◽  
Reda A. I. Abou-Shanab ◽  
Min-Kyu Ji ◽  
You-Kwan Oh ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Salt Stress ◽  
Fatty Acid ◽  
Acid Composition ◽  
Lipid Content ◽  
Scenedesmus Obliquus ◽  
Chlamydomonas Mexicana

scholarly journals The influence of agro-climatic conditions on the fatty acid composition of soybeans of the northern ecotype

2021 ◽  
pp. 9-12
Author(s):  
Marina Evgenievna Belyshkina ◽  
Tamara Petrovna Kobozeva
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Palmitic Acid ◽  
Acid Composition ◽  
Field Experiments ◽  
Unsaturated Fatty Acids ◽  
Climatic Factors ◽  
World Health ◽  
Soybean Seeds

In terms of biological value and quality, soy fat meets the standard of the Food and Agriculture Organization of the United Nations and the World Health Organization. The aim of the study was to identify agro-climatic factors that affect the fatty acid composition of soybean seeds of the northern ecotype and to determine the variety that most corresponds to the group of food fat quality. Field experiments were conducted in 2017–2019 in the Ryazan region at the experimental base of the Institute of Seed Production and Agricultural Technologies-a branch of the FGBNU FNAC VIM. Varieties and forms of soybeans of the northern ecotype – Light, Mageva, Okskaya and M-52-were selected as objects of research. The results of the study. The average yield of soybean seeds for three years of research was from 1.81 to 2.57 t / ha for varieties, the fat content in the seeds was 19.4–21.5 %, the total harvest was 357–548 kg/ha. The fat of soybean seeds of varieties and forms of the northern ecotype contained 11.36–11.43 % palmitic acid and significantly less oleic acid-7.43–11.27 %. While in traditional varieties, the values of these indicators were 9.75 % and 24.80 %, respectively. In conditions of sufficient moisture (2017), the predominance of saturated palmitic acid in the fatty acid composition of seeds was observed, and in dry years (2018–2019) – unsaturated fatty acids – oleic, linoleic and linolenic, their sum was 73 % in dry years, with sufficient moisture – 67 %. Better illumination of the upper tiers of plants contributed to the activation of the synthesis of unsaturated fatty acids. It was found that, according to the fatty acid composition, the Light soy variety is more close to the varieties of soy for food purposes.

Impact of temperature on the expression of Kennedy Pathway genes in developing soybean seeds

2015 ◽  
Vol 95 (1) ◽  
pp. 87-101 ◽  
Author(s):  
Amy J. M. McNaughton ◽  
Barry J. Shelp ◽  
Istvan Rajcan
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Quantitative Polymerase Chain Reaction ◽  
Soybean Seeds ◽  
Dependent Manner ◽  
Oil Storage ◽  
Kennedy Pathway ◽  
Soybean Genotypes ◽  
The Impact

McNaughton, A. J. M., Shelp, B. J. and Rajcan, I. 2015. Impact of temperature on the expression of Kennedy Pathway genes in developing soybean seeds. Can. J. Plant Sci. 95: 87–101. The main oil storage molecule, triacylglycerol (TAG), can be created by the Kennedy Pathway. The objective of this study was to determine the impact of growing temperature on the expression of the Kennedy Pathway genes, glycerol-3-phosphate acyltransferase (G3PAT), lysophosphatidic acid acyltransferase (LPAAT), and diacylglycerol acyltransferase 1 (DGAT1), in developing seed of four soybean genotypes with altered fatty acid composition using quantitative polymerase chain reaction. The three growing temperatures were: high, 30°C day/25°C night; normal, 25°C day/20°C night; and low, 20°C day/15°C night. The expression of G3PAT steadily declined following 15 d after flowering (DAF), suggesting that it is likely to be more highly expressed earlier in development than was measured in the study. As a result, the expression of G3PAT did not correspond to fatty acid accumulation. LPAAT expression coincided with accumulation of oleic acid (18:1∆9) and linolenic acid (18:3∆9,12,15) in a temperature-dependent manner. The expression of DGAT1 corresponded to accumulation of linoleic acid (18:2∆9,12), which varied among the soybean genotypes, indicating a genotypic effect on the expression of DGAT1. This study suggests that the expression of the acyltransferase enzymes of the Kennedy Pathway influences the fatty acid composition in seed of four altered fatty acid soybean genotypes.

Cell ultrastructure and fatty acid composition of lipids in vegetative organs of Chenopodium album L. under salt stress conditions

2016 ◽  
Vol 63 (6) ◽  
pp. 763-775 ◽  
Author(s):  
T. V. Ivanova ◽  
O. V. Maiorova ◽  
Yu. V. Orlova ◽  
E. I. Kuznetsova ◽  
L. A. Khalilova ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Salt Stress ◽  
Fatty Acid ◽  
Acid Composition ◽  
Chenopodium Album ◽  
Cell Ultrastructure ◽  
Stress Conditions ◽  
Vegetative Organs

Nitric oxide affects seed oil accumulation and fatty acid composition through protein S-nitrosation

2020 ◽  
Author(s):  
Jing Liu ◽  
Xiao-yi Zhu ◽  
Lin-Bin Deng ◽  
Hong-Fang Liu ◽  
Jun Li ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Stress Responses ◽  
Oil Content ◽  
Seed Oil ◽  
Seed Oil Content ◽  
Oil Accumulation ◽  
No Donor

Abstract Nitric oxide (NO) is a key signaling molecule regulating several plant developmental and stress responses. Here, we report that NO plays an important role in seed oil content and fatty acid composition. RNAi silencing of Arabidopsis S-nitrosoglutathione reductase 1 (GSNOR1) led to reduced seed oil content. In contrast, nitrate reductase double mutant nia1nia2 had increased seed oil content, compared with wild-type plants. Moreover, the concentrations of palmitic acid (C16:0), linoleic acid (C18:2), and linolenic acid (C18:3) were higher, whereas those of stearic acid (C18:0), oleic acid (C18:1), and arachidonic acid (C20:1) were lower, in seeds of GSNOR1 RNAi lines. Similar results were obtained with rapeseed embryos cultured in vitro with the NO donor sodium nitroprusside (SNP), and the NO inhibitor NG-Nitro-L-arginine Methyl Ester (L-NAME). Compared with non-treated embryos, the oil content decreased in SNP-treated embryos, and increased in L-NAME-treated embryos. Relative concentrations of C16:0, C18:2 and C18:3 were higher, whereas C18:1 concentration decreased in rapeseed embryos treated with SNP. Proteomics and transcriptome analysis revealed that three S-nitrosated proteins and some key genes involved in oil synthesis, were differentially regulated in SNP-treated embryos. Therefore, regulating NO content could be a novel approach to increasing seed oil content in cultivated oil crops.

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