Combining ability of low phytic acid (lpa1-1) and quality protein maize (QPM) lines for seed germination and vigour under stress and non-stress conditions

Euphytica ◽  
2012 ◽  
Vol 185 (3) ◽  
pp. 529-541 ◽  
Author(s):  
R. Naidoo ◽  
P. Tongoona ◽  
J. Derera ◽  
M. D. Laing ◽  
G. M. F. Watson
Keyword(s):  
Seed Germination ◽  
Phytic Acid ◽  
Combining Ability ◽  
Stress Conditions ◽  
Quality Protein Maize ◽  
Low Phytic Acid

scholarly journals Studies on genetic parameters and combining ability in maize for the production of hybrids with low phytic acid

2019 ◽  
Vol 10 (2) ◽  
pp. 419 ◽  
Author(s):  
J. Lydia Pramitha ◽  
A. John Joel ◽  
Jacob George ◽  
R. Sreeja ◽  
R. Ravikesavan
Keyword(s):  
Phytic Acid ◽  
Combining Ability ◽  
Genetic Parameters ◽  
Low Phytic Acid

scholarly journals Quantitative proteomic analyses of two soybean low phytic acid mutants to identify the genes associated with seed field emergence

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Xiaomin Yu ◽  
Hangxia Jin ◽  
Xujun Fu ◽  
Qinghua Yang ◽  
Fengjie Yuan
Keyword(s):  
Seed Germination ◽  
Phytic Acid ◽  
Lipid Transfer Protein ◽  
Cysteine Proteinase ◽  
Germination Rate ◽  
Cysteine Proteinase Inhibitor ◽  
Plant Seed ◽  
Low Phytic Acid ◽  
Seed Field ◽  
Field Emergence

Abstract Background Seed germination is essential to crop growth and development, and ultimately affects its harvest. It is difficult to breed soybeans low in phytic acid with a higher seed field emergence. Although additional management and selection could overcome the phytate reduction, the mechanisms of seed germination remain unknown. Results A comparative proteomic analysis was conducted between two low phytic acid (LPA) soybean mutants (TW-1-M and TW-1), both of which had a deletion of 2 bp in the GmMIPS1 gene. However, the TW-1 seeds showed a significantly lower field emergence compared to the TW-1-M. There were 282 differentially accumulated proteins (DAPs) identified between two mutants at the three stages. Among these DAPs, 80 were down-accumulated and 202 were up-accumulated. Bioinformatic analysis showed that the identified proteins were related to functional categories of oxidation reduction, response to stimulus and stress, dormancy and germination processes and catalytic activity. KEGG analysis showed that these DAPs were mainly involved in energy metabolism and anti-stress pathways. Based upon the conjoint analysis of DAPs with the differentially expressed genes (DEGs) previously published among three germination stages in two LPA mutants, 30 shared DAPs/DEGs were identified with different patterns, including plant seed protein, beta-amylase, protein disulfide-isomerase, disease resistance protein, pyrophosphate-fructose 6-phosphate 1-phosphotransferase, cysteine proteinase inhibitor, non-specific lipid-transfer protein, phosphoenolpyruvate carboxylase and acyl-coenzyme A oxidase. Conclusions Seed germination is a very complex process in LPA soybean mutants. The TW-1-M and TW-1 showed many DAPs involved in seed germination. The differential accumulation of these proteins could result in the difference of seed field emergence between the two mutants. The high germination rate in the TW-1-M might be strongly attributed to reactive oxygen species-related and plant hormone-related genes. All these findings would help us further explore the germination mechanisms in LPA crops.

Registration of KBNT 1-1 Low Phytic Acid Germplasm of Rice

Crop Science ◽  
2004 ◽  
Vol 44 (1) ◽  
pp. 363 ◽  
Author(s):  
J.N. Rutger ◽  
V. Raboy ◽  
K.A.K. Moldenhauer ◽  
R.J. Bryant ◽  
F.N. Lee ◽  
...  
Keyword(s):  
Phytic Acid ◽  
Low Phytic Acid

scholarly journals In vitro seed germination response of corn hybrids to osmotic stress conditions

age ◽  
2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Charles Hunt Walne ◽  
Annabeth Gaudin ◽  
W. Brien Henry ◽  
Kambham Raja Reddy
Keyword(s):  
Seed Germination ◽  
Osmotic Stress ◽  
Stress Conditions ◽  
Corn Hybrids ◽  
Germination Response

scholarly journals MES7 Modulates Seed Germination via Regulating Salicylic Acid Content in Arabidopsis

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 903
Author(s):  
Wenrui Gao ◽  
Yan Liu ◽  
Juan Huang ◽  
Yaqiu Chen ◽  
Chen Chen ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Abiotic Stress ◽  
Seed Germination ◽  
Environmental Conditions ◽  
Acid Content ◽  
Hydrolytic Enzyme ◽  
Stress Conditions ◽  
Transitional Period ◽  
Highly Sensitive

Seed germination is an important phase transitional period of angiosperm plants during which seeds are highly sensitive to different environmental conditions. Although seed germination is under the regulation of salicylic acid (SA) and other hormones, the molecular mechanism underlying these regulations remains mysterious. In this study, we determined the expression of SA methyl esterase (MES) family genes during seed germination. We found that MES7 expression decreases significantly in imbibed seeds, and the dysfunction of MES7 decreases SA content. Furthermore, MES7 reduces and promotes seed germination under normal and salt stress conditions, respectively. The application of SA restores the seed germination deficiencies of mes7 mutants under different conditions. Taking together, our observations uncover a MeSA hydrolytic enzyme, MES7, regulates seed germination via altering SA titer under normal and abiotic stress conditions.

scholarly journals Phosphorus application improves grain yield in low phytic acid maize synthetic populations

Heliyon ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. e07912
Author(s):  
Mohammed A.E. Bakhite ◽  
Nkanyiso J. Sithole ◽  
Lembe S. Magwaza ◽  
Alfred O. Odindo ◽  
Shirly T. Magwaza ◽  
...  
Keyword(s):  
Grain Yield ◽  
Phytic Acid ◽  
Low Phytic Acid ◽  
Synthetic Populations ◽  
Phosphorus Application

scholarly journals Does discontinuous hydration of Senna spectabilis (DC.) H.S. Irwin & Barneby var. excelsa (Schrad.) H.S. Irwin & Barneby (Fabaceae) seeds confer tolerance to water stress during seed germination?

2018 ◽  
Vol 40 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Ayslan Trindade Lima ◽  
Paulo Henrique de Jesus da Cunha ◽  
Bárbara França Dantas ◽  
Marcos Vinicius Meiado
Keyword(s):  
Water Stress ◽  
Seed Germination ◽  
Stress Conditions ◽  
Hydration Time ◽  
Senna Spectabilis ◽  
Mean Germination Time ◽  
Polyethylene Glycol 6000 ◽  
Osmotic Potentials ◽  
Germination Parameters ◽  
Hydration And Dehydration

Abstract: Seed hydration memory is the ability of seeds to retain biochemical and physiological changes caused by discontinuous hydration. This study aimed to determine if Senna spectabilis (DC.) H.S. Irwin & Barneby var. excelsa (Schrad.) H.S.Irwin & Barneby (Fabaceae) present seed memory and evaluate the effects of hydration and dehydration cycles (HD) on the seed germination of this species when submitted to conditions of water stress. Seeds underwent HD cycles (0, 1, 2 and 3 cycles) corresponding to the hydration times X (6 hours), Y (16 hours) and Z (24 hours), determined from the imbibition curve, with 5 hours of dehydration and submitted to water stress conditions. Germination was evaluated at 0.0, -0.1, -0.3, -0.6 and -0.9 MPa, obtained with polyethylene glycol 6000 solution. Germinability (%), mean germination time (days) and hydrotime (MPa d-1) were calculated. The seeds of S. spectabilis var. excelsa are sensitive to the low osmotic potentials tested in this study, however, when submitted to the HD cycles of 16 hours hydration (time Y), the tolerance to water stress conditions is increased. In addition, the observed benefits on the evaluated germination parameters show that S. spectabilis var. excelsa present seed hydation memory.

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