Differential Impact of Salinity Stress on Seeds Minerals, Storage Proteins, Fatty Acids, and Squalene Composition of New Quinoa Genotype, Grown in Hyper-Arid Desert Environments

The effects of climate change and soil salinization on dryland ecosystems are already widespread, and ensuring food security is a crucial challenge. In this article, we demonstrate changes in growth performance and seed quality of a new high-yielding quinoa genotype (Q5) exposed to sodium chloride (...

Celý popis

Uloženo v:

Podrobná bibliografie
Vydáno v:	Frontiers in Plant Science Ročník 11; s. 607102
Hlavní autoři:	Toderich, Kristina N., Mamadrahimov, Azimjon A., Khaitov, Botir B., Karimov, Aziz A., Soliev, Azamjon A., Nanduri, Kameswara Rao, Shuyskaya, Elena V.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Switzerland Frontiers Media SA 07.12.2020 Frontiers Media S.A
Témata:	Abiotic stress Agricultural production Amarantaceae Amino acids Antioxidants Arid zones Biomarkers Biosynthesis Chenopodium quinoa Chloride Chlorine Climate change Climate effects Crop yield Cultivars Desert environments Fatty acids Food industry Food security Genotypes Ion concentration Membrane permeability Minerals Pharmaceutical industry Plant culture Plant Science Proline Quinoa Salinity Salinity effects Salinization SB1-1110 Seeds Sodium Sodium chloride Sodium sulfate Soil salinity Squalene Storage proteins proline Amarantaceae desertification saline stress fatty acids amino acids squalene Chenopodium quinoa
ISSN:	1664-462X, 1664-462X
On-line přístup:	Získat plný text
Tagy:	Přidat tag Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!

Popis
Shrnutí:	The effects of climate change and soil salinization on dryland ecosystems are already widespread, and ensuring food security is a crucial challenge. In this article, we demonstrate changes in growth performance and seed quality of a new high-yielding quinoa genotype (Q5) exposed to sodium chloride (NaCl), sodium sulfate (Na 2 SO 4 ), and mixed salts (NaCl + Na 2 SO 4 ). Differential responses to salt stress in growth performance, seed yield, and seed quality were identified. High salinity (mixed Na 2 SO 4 + NaCl) reduces plant height by ∼30%, shoot and root dry weights by ∼29%, head panicle length and panicle weight by 36–43%, and seed yield by 37%, compared with control conditions. However, the 1,000 - seed weight changes insignificantly under salinity. High content of essential minerals, such as Fe, Zn, and Ca in quinoa Q5 seeds produced under salinity, gives the Q5 genotype a remarkable advantage for human consumption. Biomarkers detected in our studies show that the content of most essential amino acids is unchanged under salinity. The content of amino acids Pro, Gly, and Ile positively correlates with Na + concentration in soil and seeds, whereas the content of squalene and most fatty acids negatively correlates. Variation in squalene content under increasing salinity is most likely due to toxic effects of sodium and chlorine ions as a result of the decrease in membrane permeability for ion movement as a protective reaction to an increase in the sodium ion concentration. Low squalene accumulation might also occur to redirect the NADPH cofactor to enhance the biosynthesis of proline in response to salinity, as both syntheses (squalene and proline) require NADPH. This evidence can potentially be used by the food and pharmaceutical industries in the development of new food and health products.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 Edited by: Giovanni Stefano, University of Florence, Italy Reviewed by: Nadia Bazihizina, University of Florence, Italy; Arafat Abdel Hamed Abdel Latef, South Valley University, Egypt These authors have contributed equally to this work This article was submitted to Plant Abiotic Stress, a section of the journal Frontiers in Plant Science
ISSN:	1664-462X 1664-462X
DOI:	10.3389/fpls.2020.607102