Low Phosphorus Tolerance in Cotton Genotypes is Regulated by Root Morphology and Physiology

Iqbal, Asif; Dong, Qiang; Gui, Heng; Zhang, Hengheng; Zhang, Xiling; Song, Meizhen

doi:10.1007/s00344-022-10829-5

Cited by 9 publications

(7 citation statements)

References 90 publications

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“…For sucrose phosphate synthase (SPS; EC 2.4.1.14), approximately 1 g of frozen material was ground to a fine powder in an ice bath with 5 mL of 4‐(2‐hydroxyethyl)‐1‐piperazineethanesulfonic acid–NaOH buffer (50 mmol L −1 , pH 7.5) containing 50 mmol L −1 MgCl 2 , 2 mmol L −1 EDTA, 0.2% (w/v) bovine serum albumin, and 2% polyvinyl pyrrolidone. After centrifugation (10 000 × g , 10 min), 50 mL of supernatant was mixed with 50 mL of HEPES–NaOH buffer, 20 mL of 50 mmol L −1 MgCl 2 , 20 mL of 100 mmol L −1 uridine diphosphoglucose, and 20 mL of 100 mmol L −1 fructose 51,52 . The mixture was incubated at 30 °C for 30 min, and the reaction was stopped by the addition of 200 mL of 2 mmol L −1 NaOH and boiling for 10 min.…”

Section: Methodsmentioning

confidence: 99%

“…After centrifugation (10 000 × g, 10 min), 50 mL of supernatant was mixed with 50 mL of HEPES-NaOH buffer, 20 mL of 50 mmol L −1 MgCl 2 , 20 mL of 100 mmol L −1 uridine diphosphoglucose, and 20 mL of 100 mmol L −1 fructose. 51,52 The mixture was incubated at 30 °C for 30 min, and the reaction was stopped by the addition of 200 mL of 2 mmol L −1 NaOH and boiling for 10 min. The solution was then cooled to room temperature.…”

Section: Determination Of Tss and Sucrose Contentsmentioning

confidence: 99%

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Genotypic variation in carbon and nitrogen metabolism in the cotton subtending leaves and seed cotton yield under various nitrogen levels

et al. 2023

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BACKGROUND: Nitrogen (N) is the key nutrient required for high cotton production; however, its excessive use can increase the cost of production and environmental problems. Reducing the application of N while sustaining the yield is an important issue to be solved. Therefore, this study was designed to investigate the genotypic variations in subtending leaf physiology and its contribution to seed cotton yield of contrasting N-efficient cotton genotypes under various N levels in pot and field conditions. RESULTS: The results showed that the application of N increased the enzymatic activities related to carbon (C) and N metabolisms. Under the same N level, the C/N metabolisms of the N-efficient genotypes were significantly higher than N-inefficient genotypes, indicating a strong N assimilation and photoassimilation ability in N-efficient genotypes, especially under low N level. Moreover, the antioxidant enzymatic activities were significantly higher, whereas malondialdehyde content was lower in N-efficient cotton genotypes than in N-inefficient ones. Therefore, N-efficient cotton genotypes showed strong resistance, higher C/N metabolisms, and provided sufficient dry matter for boll development. As a result, the yield, N use efficiency, and value cost ratio of the N-efficient cotton genotypes were higher than in the N-inefficient genotypes.CONCLUSION: It was confirmed that the higher C/N metabolisms in the cotton subtending leaves of N-efficient cotton genotypes could support higher seed cotton yield under relatively low N application.

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Section: Methodsmentioning

confidence: 99%

Section: Determination Of Tss and Sucrose Contentsmentioning

confidence: 99%

Genotypic variation in carbon and nitrogen metabolism in the cotton subtending leaves and seed cotton yield under various nitrogen levels

et al. 2023

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“…However, in another study, it was found that the low-P-tolerant variety showed higher fiber strength, fiber fineness, fiber uniformity, and fiber elongation, although it was found that different P concentrations had no direct impact on fiber quality [67]. Several reports have shown that, compared with the low-P sensitive cultivar, the low-P-tolerant cultivar had high cotton-seed weight, cotton-seed yield, and dry biomass, and accumulated more P [68][69][70][71]. Other studies have shown that low-phosphorus conditions will also have a greater impact on the content of large amounts, and of the micronutrients in cottonseed [72].…”

Section: Low Availability Of P Affects Growth Parameters Phosphorus U...mentioning

confidence: 99%

Phosphorus Availability Affects the Photosynthesis and Antioxidant System of Contrasting Low-P-Tolerant Cotton Genotypes

et al. 2023

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Phosphorus (P) is an essential macronutrient, and an important component of plant metabolism. However, little is known about the effects of low P availability on P absorption, the photosynthetic electron transport chain, and the antioxidant system in cotton. This study used cotton genotypes (sensitive FJA and DLNTDH and tolerant BX014 and LuYuan343) with contrasting low-P tolerance in a hydroponic experiment under 15 µM, 50 µM, and 500 μM P concentrations. The results showed that low P availability reduced plant development and leaf area, shoot length, and dry weight in FJA and DLNADH, compared to BX014 and LuYuan343. The low P availability decreased the gas-exchange parameters such as the net photosynthetic rate, transpiration rate, and stomatal conductance, and increased the intercellular CO2 concentration. Chlorophyll a fluorescence demonstrated that the leaves’ absorption and trapped-energy flux were largely steady. In contrast, considerable gains in absorption and trapped-energy flux per reaction center resulted from decreases in the electron transport per reaction center under low-P conditions. In addition, low P availability reduced the activities of antioxidant enzymes and increased the content of malondialdehyde in the cotton genotypes, especially in FJA and DLNTDH. Moreover, low P availability reduced the activity of PEPC and generated a decline in the content of ATP and NADPH. Our research can provide a theoretical physiological basis for the growth and tolerance of cotton under low-P conditions.

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“…The deficiencies of macronutrients and micronutrients decrease cotton yield (Ahmed N. et al, 2020). Recently, Iqbal et al (2022) demonstrated that low P tolerance in cotton is regulated by root morphology and physiology. The study showed that low P decreased dry matter, photosynthesis, and carbon metabolism in cotton, which could directly affect the yield.…”

Section: Proteomics: For Improving Cotton Fiber Qualitymentioning

confidence: 99%

“…The deficiencies of macronutrients and micronutrients decrease cotton yield ( Ahmed N. et al., 2020 ). Recently, Iqbal et al. (2022) demonstrated that low P tolerance in cotton is regulated by root morphology and physiology.…”

Section: Proteomics: For Improving Cotton Fiber Qualitymentioning

confidence: 99%

Cotton proteomics: Dissecting the stress response mechanisms in cotton

et al. 2022

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The natural environment of plants comprises a complex set of biotic and abiotic stresses, and plant responses to these stresses are complex as well. Plant proteomics approaches have significantly revealed dynamic changes in plant proteome responses to stress and developmental processes. Thus, we reviewed the recent advances in cotton proteomics research under changing environmental conditions, considering the progress and challenging factors. Finally, we highlight how single-cell proteomics is revolutionizing plant research at the proteomics level. We envision that future cotton proteomics research at the single-cell level will provide a more complete understanding of cotton’s response to stresses.

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Low Phosphorus Tolerance in Cotton Genotypes is Regulated by Root Morphology and Physiology

Cited by 9 publications

References 90 publications

Genotypic variation in carbon and nitrogen metabolism in the cotton subtending leaves and seed cotton yield under various nitrogen levels

Genotypic variation in carbon and nitrogen metabolism in the cotton subtending leaves and seed cotton yield under various nitrogen levels

Phosphorus Availability Affects the Photosynthesis and Antioxidant System of Contrasting Low-P-Tolerant Cotton Genotypes

Cotton proteomics: Dissecting the stress response mechanisms in cotton

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