Wheat: Functional Genomics of Abiotic Stress Tolerance

Khurana, Paramjit; Chauhan, Harsh; Khurana, Neetika

doi:10.1002/9783527632930.ch28

Cited by 3 publications

(2 citation statements)

References 122 publications

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“…Abiotic stress negatively affects the adaptability to the environment and the productivity of cereal crops worldwide [ 4 ]. Crop productivity largely depends on the availability and use of nitrogen (N) due to its essential role as a macronutrient for plant growth and development [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Durum wheat miRNAs in response to nitrogen starvation at the grain filling stage

et al. 2017

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Durum wheat highly depends on nitrogen for seed development and yield, and the obtainment of varieties with a better nitrogen use efficiency is crucial to reduce production costs and environmental pollution. In this study, sequencing of two small RNA libraries obtained from tissues of Ciccio and Svevo cultivars grown under nitrogen starvation conditions produced 84 novel, and 161 conserved miRNAs. Of these, 7 novel and 13 known miRNAs were newly identified in this work. Quantitative PCR analysis of selected miRNAs highlighted that the expression levels of some of them depends on the tissue and on the cultivar, Svevo being the most responsive to nitrogen starvation. A number of target genes were predicted to be involved in nitrogen metabolism. An inverse correlation for the qPCR expression data of miRNA/target pairs miR399b/PHO2, miR393c/AFB2, ttu-novel-61/CCAAT-TF was observed in specific tissues or cultivar. Especially, ttu-novel-61 was down-regulated and its target CCAAT-TF up-regulated in almost all tissues both in Svevo and in Ciccio. Moreover, CCAAT-TF was confirmed to be cleaved by ttu-novel-61 at the expected site. The discovery of miRNAs involved in the response to nitrogen stress represents an important step towards functional analyses, with the final aim to design strategies for improving nitrogen use efficiency in durum wheat.

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Section: Introductionmentioning

confidence: 99%

Durum wheat miRNAs in response to nitrogen starvation at the grain filling stage

et al. 2017

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“…Êðîìå òîãî, îòìå÷àåòñÿ íàëè÷èå îáðàçîâàíèé â âèäå "êîìî÷êîâ âàòû", à òàêaeå ìèêðîàíåâðèçì â çîíå îáëèòåðàöèè êàïèëëÿðîâ. Íåéðîïàòèÿ çðèòåëüíîãî íåðâà õàðàêòåðèçóåòñÿ îòåêîì äèñêà çðèòåëüíîãî íåðâà (ÄÇÍ), êðîâîèçëèÿíèÿìè íà åãî ïîâåðõíîñòè è â ïåðèïàïèëëÿðíîé çîíå ñåò÷àòêè èç-çà ñóaeåíèÿ ïðîñâåòà ïåðèïàïèëëÿðíûõ ñîñóäîâ ñîñóäèñòîé îáîëî÷êè, ñíàáaeàþùèõ ÄÇÍ [9].…”

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Протективные Эффекты Карбамилированного Дарбэпоэтина На Модели Ишемической Нейропатии Зрительного Нерва

Пересыпкина¹,

Покровский²,

Губарева³

et al. 2018

Эксп. и клин. фармакол.

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Исследовано протективное действие карбамилированного дарбэпоэтина в дозе 300 мкг/кг на модели ишемической нейропатии зрительного нерва у крыс линии Wistar. Выявлено, что карбамилированный дарбэпоэтин предотвращает развитие повреждений диска зрительного нерва и сосудов сетчатки, вызванных внутрижелудочным введением неселективного ингибитора NO-синтаз N-нитро-L-аргинин-метилового эфира (L-NAME) в дозе 12,5 мг/кг в течение 28 сут и однократным повышением внутриглазного давления до 110 мм рт. ст. Обнаруженный протективный эффект подтвержден результатами офтальмоскопии, электроретинографии и иммуногистохимии на 29 сут эксперимента. У крыс в группе с коррекцией карбамилированным дарбэпоэтином коэффициент b/a (степень развития функциональных повреждений сетчатки) достоверно возрастает на 31,6 % (p < 0,05). Карбамилированный дарбэпоэтин ингибирует экспрессию белка р53 в нейронах сетчатки и индуцирует экспрессию эндотелиальной NO-синтазы в сосудах сетчатки, вследствие чего наблюдается протективный эффект.

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Anther Culture in Crop Plants: Progress and Perspectives

Islam

Arif

Hasan

et al. 2023

Plant Breed. Biotech.

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A resurrection has started in haploid and double haploid research in the twenty-first century. The haploid and double haploid could be achieved through in vivo and in vitro anther and microspore culture techniques. Fixing the homozygosity is the most striking benefit of androgenesis. Various factors like genotypic dependency, growth condition, developmental stage of the microspore, pre-treatment, culture media, regeneration media, growth hormones, and various chemicals have a direct effect. Wheat, rice, Brassica, and tobacco are the notable crops where anther and microspore culture has been utilized. These haploidy and double haploidy through anther culture served many purposes of basic and applied research. Especially, double haploid cultivars have been cultivating around the globe. In addition, for chromosome mapping, QTL mapping, marker-assisted selection, marker-assisted backcrossing, mutation breeding, genome-wide association study, genomic engineering, and genome editing, androgenesis based haploid and double haploid plants have been exploited due to the effectiveness. Recently, researchers are trying to explain albinism that happens during anther culture from an epigenetic perspective. Further prospects of haploid and doubled haploid research through anther culture have been described in this review.

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Wheat: Functional Genomics of Abiotic Stress Tolerance

Cited by 3 publications

References 122 publications

Durum wheat miRNAs in response to nitrogen starvation at the grain filling stage

Durum wheat miRNAs in response to nitrogen starvation at the grain filling stage

Протективные Эффекты Карбамилированного Дарбэпоэтина На Модели Ишемической Нейропатии Зрительного Нерва

Anther Culture in Crop Plants: Progress and Perspectives

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