Variation Among Spring Wheat (Triticum aestivum L.) Genotypes in Response to the Drought Stress. II—Root System Structure

Grzesiak, Maciej T.; Hordyńska, Natalia; Maksymowicz, Anna; Grzesiak, S.; Szechyńska‐Hebda, Magdalena

doi:10.3390/plants8120584

Cited by 39 publications

(34 citation statements)

References 60 publications

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“…Although meaningful progress has been made in the study of the biological function of TFIID in Arabidopsis, the study on the biological function of TFIID gene in rice is still limited. Previous studies have shown that the transcription factors constituting TFIID may act as enhancers and positive regulators in the response of plant root to drought stress [ 26 ]. In addition, the transcription initiation factor TFIID can regulate gene expression and thus the plants can adapt to osmotic stress [ 55 , 56 ].…”

Section: Discussionmentioning

confidence: 99%

“…Studies have shown that genes containing TATA box sequence in promoter region usually responds to different environment stresses [ 25 ]. The transcription factors that make up TFIID under abiotic stress can enhance plant’s resistance and adaptability to the stress environment [ 26 ]. In Arabidopsis thaliana , some genes belonging to the TFIID family have been shown to play an active role in dealing with abiotic stress conditions, such as AtTAF10 (TBP-associated factor 10) [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

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Knockdown of a Novel Gene OsTBP2.2 Increases Sensitivity to Drought Stress in Rice

Zhang

Zhao

Xiao

et al. 2020

Genes

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Drought stress is a major environmental stress, which adversely affects the biological and molecular processes of plants, thereby impairing their growth and development. In the present study, we found that the expression level of OsTBP2.2 which encodes for a nucleus-localized protein member belonging to transcription factor IID (TFIID) family, was significantly induced by polyethylene glycol (PEG) treatment. Therefore, knockdown mutants of OsTBP2.2 gene were generated to investigate the role of OsTBP2.2 in rice response to drought stress. Under the condition of drought stress, the photosynthetic rate, transpiration rate, water use efficiency, and stomatal conductance were significantly reduced in ostbp2.2 lines compared with wild type, Dongjin (WT-DJ). Furthermore, the RNA-seq results showed that several main pathways involved in “MAPK (mitogen-activated protein kinase) signaling pathway”, “phenylpropanoid biosynthesis”, “defense response” and “ADP (adenosine diphosphate) binding” were altered significantly in ostbp2.2. We also found that OsPIP2;6, OsPAO and OsRCCR1 genes were down-regulated in ostbp2.2 compared with WT-DJ, which may be one of the reasons that inhibit photosynthesis. Our findings suggest that OsTBP2.2 may play a key role in rice growth and the regulation of photosynthesis under drought stress and it may possess high potential usefulness in molecular breeding of drought-tolerant rice.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Knockdown of a Novel Gene OsTBP2.2 Increases Sensitivity to Drought Stress in Rice

Zhang

Zhao

Xiao

et al. 2020

Genes

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“…Відомо, що нестача води у ґрунті завдає значно більшої шкоди рослинництву, ніж усі інші стресові фактори, разом узяті [52]. Шкідлива дія посухи полягає, в першу чергу, у зневодненні та порушенні метаболічних процесів у рослинах, що призводить до розпаду білків, зміни колоїдно-хімічного стану цитоплазми клітини і, як наслідок, до зниження кількості накопиченої рослинами органічної речовини [52,78,87]. Посуха може також спровокувати засолення ґрунтів [52].…”

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“…Молекулярно-генетичні методи. Подальший прогрес у вивченні посухостійкості пшениці буде залежати не лише від розвитку клітинних технологій, але й від більш глибокого пізнання молекулярних механізмів регуляції та експресії генів, що детермінують дану ознаку [53,78]. Останні розробки у галузі молекулярної генетики надали селекціонерам потужні інструменти для виявлення форм із господарсько-цінними ознаками.…”

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Methods for evaluation of wheat breeding material for drought tolerance

Pykalo¹,

Demydov²,

Yurchenko³

et al. 2020

VLUBS

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Wheat is one of the most valuable cereals on the planet and plays a leading role in the food supply of mankind. The range of wheat is very large, since it is cultivated on five continents in most countries of the world. The genetic improvement of wheat is crucial because of its direct impact on the economic development, international grain trade and food security of the country, so the relevance of research in solving many genetic-breeding problems regarding this crop is growing and acquires a qualitatively new character. The increase in productivity is the most important criterion in the cultivation of any crops, in particular wheat. Drought is one of the main limiting environmental factors that reduce plant productivity. In order to guarantee agriculture from losses in dry years, it is necessary to have varieties tolerant to moisture deficiency. That is why one of the priority areas of wheat breeding is the creation of varieties tolerant to the action of water deficiency. The success of breeding when creating drought tolerant forms largely depends on the correct assessment of the degree of their tolerance. Conducting research on the assessment of genotypes for tolerance to water stress is one of conditions for increasing efficiency of the breeding process of this culture. The results obtained in the analysis of literature data, found that for screening of wheat varieties for drought tolerance there are many methods based on different principles of action, and each of them has its advantages and disadvantages. To accelerate the breeding process and obtain reliable results, it is necessary to apply various methods of researching samples on specific signs of tolerance to stress. The choice of method largely depends on the degree of its complexity, the duration of the assessment and throughput. Therefore, the creation of new and improvement of existing methods for assessing wheat breeding material for drought tolerance in conditions of increasing water deficit or temperature increase will make it possible to objectively characterize the level of adaptability of promising genotypes and predict their behavior in appropriate environmental conditions.

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Food and Nutritional Security Under the Changing Climate: Understanding the Established and Indeterminate Factors

Nishu,

Mathur,

Sinha

2024

Advances in Science, Technology &Amp; Innovation

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Variation Among Spring Wheat (Triticum aestivum L.) Genotypes in Response to the Drought Stress. II—Root System Structure

Cited by 39 publications

References 60 publications

Knockdown of a Novel Gene OsTBP2.2 Increases Sensitivity to Drought Stress in Rice

Knockdown of a Novel Gene OsTBP2.2 Increases Sensitivity to Drought Stress in Rice

Methods for evaluation of wheat breeding material for drought tolerance

Food and Nutritional Security Under the Changing Climate: Understanding the Established and Indeterminate Factors

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