Cargando…

Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings

BACKGROUND: Nitrogen (N) deficiency is a major constraint for plant production in many areas. Developing the new crop genotypes with high productivity under N deficiency is an important approach to maintain agricultural production. Therefore, understanding how plant response to N deficiency and the...

Descripción completa

Detalles Bibliográficos
Autores principales: Liu, Xiaoxiao, Wang, Shiwen, Deng, Xiping, Zhang, Zhiyong, Yin, Lina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7607636/
https://www.ncbi.nlm.nih.gov/pubmed/33143654
http://dx.doi.org/10.1186/s12870-020-02717-5
_version_ 1783604680175124480
author Liu, Xiaoxiao
Wang, Shiwen
Deng, Xiping
Zhang, Zhiyong
Yin, Lina
author_facet Liu, Xiaoxiao
Wang, Shiwen
Deng, Xiping
Zhang, Zhiyong
Yin, Lina
author_sort Liu, Xiaoxiao
collection PubMed
description BACKGROUND: Nitrogen (N) deficiency is a major constraint for plant production in many areas. Developing the new crop genotypes with high productivity under N deficiency is an important approach to maintain agricultural production. Therefore, understanding how plant response to N deficiency and the mechanism of N-deficiency tolerance are very important for sustainable development of modern crop production. RESULTS: In this study, the physiological responses and fatty acid composition were investigated in 24 wheat cultivars under N-deficient stress. Through Pearson’s correlation analysis and principal component analysis, the responses of 24 wheat cultivars were evaluated. The results showed that the plant growth and carbohydrate metabolism were all differently affected by N deficiency in all tested wheat cultivars. The seedlings that had high shoot biomass also maintained high level of chlorophyll content under N deficiency. Moreover, the changes in fatty acid composition, especially the linolenic acid (18:3) and the double bond index (DBI), showed close positive correlations with the shoot dry weight and chlorophyll content alterations in response to N-deficient condition. These results indicated that beside the chlorophyll content, the linolenic acid content and DBI may also contribute to N-deficiency adaptation, thus could be considered as efficient indicators for evaluation of different response in wheat seedlings under N-deficient condition. CONCLUSIONS: The alteration in fatty acid composition can potentially contribute to N-deficiency tolerance in plants, and the regulation of fatty acid compositions maybe an effective strategy for plants to adapt to N-deficient stress. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12870-020-02717-5.
format Online
Article
Text
id pubmed-7607636
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher BioMed Central
record_format MEDLINE/PubMed
spelling pubmed-76076362020-11-03 Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings Liu, Xiaoxiao Wang, Shiwen Deng, Xiping Zhang, Zhiyong Yin, Lina BMC Plant Biol Research Article BACKGROUND: Nitrogen (N) deficiency is a major constraint for plant production in many areas. Developing the new crop genotypes with high productivity under N deficiency is an important approach to maintain agricultural production. Therefore, understanding how plant response to N deficiency and the mechanism of N-deficiency tolerance are very important for sustainable development of modern crop production. RESULTS: In this study, the physiological responses and fatty acid composition were investigated in 24 wheat cultivars under N-deficient stress. Through Pearson’s correlation analysis and principal component analysis, the responses of 24 wheat cultivars were evaluated. The results showed that the plant growth and carbohydrate metabolism were all differently affected by N deficiency in all tested wheat cultivars. The seedlings that had high shoot biomass also maintained high level of chlorophyll content under N deficiency. Moreover, the changes in fatty acid composition, especially the linolenic acid (18:3) and the double bond index (DBI), showed close positive correlations with the shoot dry weight and chlorophyll content alterations in response to N-deficient condition. These results indicated that beside the chlorophyll content, the linolenic acid content and DBI may also contribute to N-deficiency adaptation, thus could be considered as efficient indicators for evaluation of different response in wheat seedlings under N-deficient condition. CONCLUSIONS: The alteration in fatty acid composition can potentially contribute to N-deficiency tolerance in plants, and the regulation of fatty acid compositions maybe an effective strategy for plants to adapt to N-deficient stress. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12870-020-02717-5. BioMed Central 2020-11-03 /pmc/articles/PMC7607636/ /pubmed/33143654 http://dx.doi.org/10.1186/s12870-020-02717-5 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research Article
Liu, Xiaoxiao
Wang, Shiwen
Deng, Xiping
Zhang, Zhiyong
Yin, Lina
Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings
title Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings
title_full Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings
title_fullStr Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings
title_full_unstemmed Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings
title_short Comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings
title_sort comprehensive evaluation of physiological traits under nitrogen stress and participation of linolenic acid in nitrogen-deficiency response in wheat seedlings
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7607636/
https://www.ncbi.nlm.nih.gov/pubmed/33143654
http://dx.doi.org/10.1186/s12870-020-02717-5
work_keys_str_mv AT liuxiaoxiao comprehensiveevaluationofphysiologicaltraitsundernitrogenstressandparticipationoflinolenicacidinnitrogendeficiencyresponseinwheatseedlings
AT wangshiwen comprehensiveevaluationofphysiologicaltraitsundernitrogenstressandparticipationoflinolenicacidinnitrogendeficiencyresponseinwheatseedlings
AT dengxiping comprehensiveevaluationofphysiologicaltraitsundernitrogenstressandparticipationoflinolenicacidinnitrogendeficiencyresponseinwheatseedlings
AT zhangzhiyong comprehensiveevaluationofphysiologicaltraitsundernitrogenstressandparticipationoflinolenicacidinnitrogendeficiencyresponseinwheatseedlings
AT yinlina comprehensiveevaluationofphysiologicaltraitsundernitrogenstressandparticipationoflinolenicacidinnitrogendeficiencyresponseinwheatseedlings