The changes in physiological and biochemical traits of Tibetan wild and cultivated barley in response to low phosphorus stress

Nadira, Umme Aktari; Ahmed, Imrul Mosaddek; Zeng, Jianbin; Bibi, Nizakat; Cai, Shengguan; Wu, Feibo; Zhang, Guoping

doi:10.1080/00380768.2014.949853

Cited by 18 publications

(17 citation statements)

References 36 publications

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“…However, the reduction varied among genotypes and the genotypes with comparatively less reduction were considered as P-efficient genotypes, such as Xinluzao-49 and Xinluzao-48. In line with the current findings, lowered root and shoot P concentrations and accumulation were observed in barley under low P concentrations [33]. Under P-deficient conditions, most of the P is translocated into leaves in P-efficient genotypes as described previously [41].…”

Section: Variation and Classification Of Cotton Genotypes For P Use Esupporting

confidence: 91%

“…Moreover, the increase in P acquisition in P-efficient genotypes might be due to an increase in the root absorption area, which may also affect the ability of plants to acquire nutrients from the medium [32]. The increase in root morphological traits under P-deficient conditions was also noted in other crops [33,34]. In the current study, increased root length and surface area were observed in Xinluzao-49 and consequently the root and shoot biomass were increased significantly as compared to other cotton genotypes.…”

Section: Variation In Morphological and Physiological Traitsmentioning

confidence: 94%

“…A significant correlation of shoot P concentrations and P uptake and transport efficiency were noted in Brassica [35]. Therefore, genotypes with high P transport efficiency can retain higher shoot P under P-starved and -deficient conditions [33]. P-use efficiency is the dry biomass produced per unit of P uptake [42].…”

Section: Variation and Classification Of Cotton Genotypes For P Use Ementioning

confidence: 99%

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Genotypic Variation in Cotton Genotypes for Phosphorus-Use Efficiency

et al. 2019

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Low phosphorus (P) availability is a major constraint for cotton production. Consequently, P-efficient genotypes can improve productivity under conditions where the higher application of P is not economical. This study was conducted to characterize cotton genotypes for P-use efficiency under various P concentrations (0, 10, 20, 40, 80, and 500 μM KH2PO4). The results showed large genotypic variation in five selected traits, such as root dry weight, shoot dry weight, photosynthetic activity, P-utilization efficiency, and P-uptake efficiency. Based on these five selected traits, the genotypes were grouped into three main classes as efficient, moderate efficient, and inefficient genotypes as proposed by different researchers. Most of the genotypes behaved in a similar pattern under different P concentrations. Among the genotypes, Xinluzao-49 and Xinluzao-48 were considered as P efficient while CCRI-64 and Yumian-21 as inefficient genotypes. However, the rest of the genotypes were considered as moderately P efficient. The results prove that a large genetic potential exists in cotton genotypes for P-use efficiency, and the use of P-efficient genotypes for cultivation will reduce the application of phosphatic fertilizers. Furthermore, the use of P-efficient genotypes will improve cotton breeding activities and help in improving the environmental sustainability of cotton production.

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Section: Variation and Classification Of Cotton Genotypes For P Use Esupporting

confidence: 91%

Section: Variation In Morphological and Physiological Traitsmentioning

confidence: 94%

Section: Variation and Classification Of Cotton Genotypes For P Use Ementioning

confidence: 99%

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Genotypic Variation in Cotton Genotypes for Phosphorus-Use Efficiency

et al. 2019

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“…P deficiency can alter the metabolism and translocation of carbohydrates, such as soluble sugars and organic acids [ 5 , 20 – 22 ]. Increased accumulation of carbohydrates, especially sucrose, was observed in leaves of many plant species under P deficiency [ 5 , 23 – 26 ], which was attributed to low sink demand and limited leaf expansion under P starvation [ 12 , 27 ]. Secretion of organic acids is one of the most important low-P responses in plants, which dissolves soil P via acidification and complexation, and confers differing levels of low-P tolerance in crops [ 26 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of phosphorus deficiency on the absorption of mineral nutrients, photosynthetic system performance and antioxidant metabolism in Citrus grandis

et al. 2021

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Phosphorus (P) is an essential macronutrient for plant growth, development and production. However, little is known about the effects of P deficiency on nutrient absorption, photosynthetic apparatus performance and antioxidant metabolism in citrus. Seedlings of ‘sour pummelo’ (Citrus grandis) were irrigated with a nutrient solution containing 0.2 mM (Control) or 0 mM (P deficiency) KH2PO4 until saturated every other day for 16 weeks. P deficiency significantly decreased the dry weight (DW) of leaves and stems, and increased the root/shoot ratio in C. grandis but did not affect the DW of roots. The decreased DW of leaves and stems might be induced by the decreased chlorophyll (Chl) contents and CO2 assimilation in P deficient seedlings. P deficiency heterogeneously affected the nutrient contents of leaves, stems and roots. The analysis of Chl a fluorescence transients showed that P deficiency impaired electron transport from the donor side of photosystem II (PSII) to the end acceptor side of PSI, which showed a greater impact on the performance of the donor side of PSII than that of the acceptor side of PSII and photosystem I (PSI). P deficiency increased the contents of ascorbate (ASC), H2O2 and malondialdehyde (MDA) as well as the activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), dehydroascorbate reductase (DHAR) and glutathione reductase (GR) in leaves. In contrast, P deficiency increased the ASC content, reduced the glutathione (GSH) content and the activities of SOD, CAT, APX and monodehydroascorbate reductase (MDHAR), but did not increase H2O2 production, anthocyanins and MDA content in roots. Taking these results together, we conclude that P deficiency affects nutrient absorption and lowers photosynthetic performance, leading to ROS production, which might be a crucial cause of the inhibited growth of C. grandis.

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“…Barley (Hordeum vulgare L.) is one of the principal cereal crops all over the world (Consortium 2012;Nadira et al 2014). It is used as forage and grain as well as a health food.…”

Section: Introductionmentioning

confidence: 99%

Identification and selection of low-phosphate-tolerant germplasm in barley (Hordeum vulgare L.)

Ren

et al. 2016

Soil Science and Plant Nutrition

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Phosphorus (P) deficiency is one of the major constraints to crop yield worldwide, and genotypes or cultivars with high phosphate use efficiency (PUE) sustain growth when exposed to phosphate stress. Therefore, it is imperative to develop the genotypes or cultivars with high PUE. A pot experiment was conducted to evaluate the PUE among 150 barley (Hordeum vulgare L.) genotypes. Two high-tolerant and-sensitive accessions were selected. These two candidate materials were used to investigate the differences among the root morphology characteristics, antioxidant enzyme activity, inorganic phosphate (Pi) content and gene expression of HvPT5 under P-deficiency and P-sufficiency conditions. The values of these parameters were higher in the low-P-tolerant genotype than in the sensitive one. In pot experiment 1, all genotypes showed a significant difference in low-P tolerance, with variety GN121 achieving the highest tolerance, and GN42 being most sensitive. The results of this study may provide elite genetic germplasms for future work on isolation of P-related genes, and the improvement of PUE in barley.

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The changes in physiological and biochemical traits of Tibetan wild and cultivated barley in response to low phosphorus stress

Cited by 18 publications

References 36 publications

Genotypic Variation in Cotton Genotypes for Phosphorus-Use Efficiency

Genotypic Variation in Cotton Genotypes for Phosphorus-Use Efficiency

Effects of phosphorus deficiency on the absorption of mineral nutrients, photosynthetic system performance and antioxidant metabolism in Citrus grandis

Identification and selection of low-phosphate-tolerant germplasm in barley (Hordeum vulgare L.)

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