Calcium and zinc mediated growth and physio-biochemical changes in mungbean grown under saline conditions

Ashraf, Muhammad; Tariq, Samreen; Saleem, Muhammad; Khan, Muhammad Athar; Hassan, Syed Wajih Ul; Sadef, Yumna

doi:10.1080/01904167.2019.1685098

Cited by 20 publications

(13 citation statements)

References 25 publications

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“…Application of Ca 2+ was able to reverse the effects of salt stress on sorghum seed germination especially at low concentrations (5 mM Ca 2+ ). Similarly, Ca 2+ also improved seed germination of Festuca ovina L. [ 24 ], Phragmites karka [ 39 ], Triticum aestivum [ 40 ], Urochondra setulosa [ 41 ], Pisum sativum [ 42 ], Solanum lycopersicon [ 43 , 44 ], and Vigna radiata [ 45 ].…”

Section: Discussionmentioning

confidence: 99%

Calcium Improves Germination and Growth of Sorghum bicolor Seedlings under Salt Stress

Mulaudzi

Hendricks

Mabiya

et al. 2020

Plants

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Salinity is a major constraint limiting plant growth and productivity worldwide. Thus, understanding the mechanism underlying plant stress response is of importance to developing new approaches that will increase salt tolerance in crops. This study reports the effects of salt stress on Sorghum bicolor during germination and the role of calcium (Ca2+) to ameliorate some of the effects of salt. To this end, sorghum seeds were germinated in the presence and absence of different NaCl (200 and 300 mM) and Ca2+ (5, 15, or 35 mM) concentrations. Salt stress delayed germination, reduced growth, increased proline, and hydrogen peroxide (H2O2) contents. Salt also induced the expression of key antioxidant (ascorbate peroxidase and catalase) and the Salt Overlay Sensitive1 genes, whereas in the presence of Ca2+ their expression was reduced except for the vacuolar Na+/H+ exchanger antiporter2 gene, which increased by 65-fold compared to the control. Ca2+ reversed the salt-induced delayed germination and promoted seedling growth, which was concomitant with reduced H2O2 and Na+/K+ ratio, indicating a protective effect. Ca2+ also effectively protected the sorghum epidermis and xylem layers from severe damage caused by salt stress. Taken together, our findings suggest that sorghum on its own responds to high salt stress through modulation of osmoprotectants and regulation of stress-responsive genes. Finally, 5 mM exogenously applied Ca2+ was most effective in enhancing salt stress tolerance by counteracting oxidative stress and improving Na+/K+ ratio, which in turn improved germination efficiency and root growth in seedlings stressed by high NaCl.

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Section: Discussionmentioning

confidence: 99%

Calcium Improves Germination and Growth of Sorghum bicolor Seedlings under Salt Stress

Mulaudzi

Hendricks

Mabiya

et al. 2020

Plants

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“…O zinco é um micronutriente essencial, presente na flora e na fauna (Roohani et al, 2013), e é radialmente absorvido pelas raízes e transportado como um cátion divalente por vias simplásticas e apoplásticas (Gupta et al, 2016) e atua como um componente estrutural e um cofator para muitas enzimas importantes, como superóxido dismutase, álcool desidrogenase e RNA polimerase (Castillo-González et al, 2018). Também está envolvido no alívio de diferentes processos físico-bioquímicos em plantas, como taxa fotossintética (Ashraf et al, 2020), formação de pólen (Pandey et al, 2006), metabolismo de carboidratos e proteínas, absorção de nutrientes (Weisany et al, 2014) e qualidade da semente (Ebrahimian et al, 2017).…”

Section: Fonte: Autoresunclassified

Manejo nutricional com micronutrientes e seus efeitos sobre os componentes de produtividade na cevada

Pessenti

Torres

Martins

et al. 2021

RSD

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Na cevada, a deficiência nutricional, ocasionada pelo déficit de micronutrientes, é um fator-chave que afeta negativamente a sua produtividade. Dentre os micronutrientes, o Zinco (Zn) e o Boro (B) estão sendo amplamente estudados em detrimento ao crescimento da planta, tal qual a qualidade do seu produto, os quais são favorecidos pelo suprimento balanceado desses micronutrientes. Nesta concepção, o presente trabalho objetivou avaliar a aplicação de zinco no tratamento de sementes e pleno perfilhamento e a aplicação de boro via adubação foliar, combinados ou não na cultura da cevada na Região dos Campos Gerais -PR. O delineamento foi em blocos casualizados com 4 níveis de tratamento e 4 repetições, cujas parcelas foram compostas por 5 linhas de cevada com 2 metros de comprimento e espaçadas por 0,45m, totalizando 4,5m². Os tratamentos foram: testemunha, Zn: aplicação de zinco 4ml kg-1 via tratamento de sementes e no estádio de pleno perfilhamento; B: aplicação foliar de boro no estádio R1; Zn + B: aplicação combinada de Zn e B. Foram avaliados o rendimento de grãos (com umidade corrigida para 13%), componentes do rendimento (número de espiguetas por planta, número de grãos por planta, massa de grãos por planta e massa de mil grãos), estatura de plantas e a qualidade fisiológica de sementes. Os tratamentos de zinco e boro isolados aumentaram o rendimento de grãos e os componentes de rendimento para a cultivar BRS Cauê. Os parâmetros de qualidade fisiológica também foram superiores para os tratamentos de zinco e boro aplicados isoladamente. Apenas para o peso de mil sementes o zinco aumentou significativamente. Conclui-se que a aplicação de zinco via tratamento de sementes e pleno perfilhamento, assim como a aplicação foliar de boro proporcionam maiores rendimentos e melhoria na qualidade fisiológica das sementes de cevada.

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“…It also contributes to the regulation of growth (through tryptophan, IAA, and gibberellin biosynthesis), energy production, carbohydrate metabolism, protein synthesis, and sugar storage [32]. Besides, it also adjusts stomatal conductance, maintains root cell membrane integrity, and assists with ionic equilibria in the Phyto-system to avoid osmotic stress induced by stressful conditions, including salinity [33]. Sugar beets are markedly affected by the deficiency of Zn, with a relatively large response to Zn [34].…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, Zn deficiency has become a great concern in originally Zn-deficient soils, which have higher salinity or pH level, have free calcium carbonate, and lower organic matter along with soils that have received excessive quantities of phosphorus [40]. Exogenously applied Zn to crop plants imparts improved tolerance to soil salinity stress by hindering Na + and/or Cl − uptake, and translocation across the plant's root cells [33,41]. In some cases, sugar productivity and technological qualities can decline without showing signs of "latent deficiency" on sugar beets when cultivated in salty soils suffering from Zn deficiency [42].…”

Section: Introductionmentioning

confidence: 99%

Integrated Application of K and Zn as an Avenue to Promote Sugar Beet Yield, Industrial Sugar Quality, and K-Use Efficiency in a Salty Semi-Arid Agro-Ecosystem

et al. 2021

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Salinity combined with a deficiency of potassium (K) and zinc (Zn) negatively affect sugar beet yield and quality. A two-year (2017/18–2018/19) field trial was undertaken to investigate the mediating role of soil-applied K [120 (K120) and 180 (K180) kg ha−1] and foliar-applied Zn [0 (Zn0), 150 (Zn150), and 300 (Zn300) ppm] in alleviating salt-stress (8.60 dS m−1) based on sugar beet morpho-physiological responses, sugar yield and quality, and K-use efficiency in the BTS 301 and Kawemira cultivars. Application of K180 × Zn300 was more effective and resulted in 23.39 and 37.78% higher root yield (RY) and pure sugar yield (PSY), respectively, compared to control (K120 × Zn0). It also enhanced sucrose, pure sugar (PS), and purity but decreased impurities (α-amino N, K, and Na), alkalinity index, and sugar loss. However, the K120 × Zn300 recorded higher K-use efficiency. PSY correlated positively (r = 0.776 **, 0.629 **, 0.602 **, 0.549 **, and 0.513 **) with RY, root fresh weight (RFW), top yield, PS, and root diameter, respectively. The stepwise and path-coefficient analysis demonstrated that RY, PS, and RFW were the most influential PSY-affected attributes. Integration of K180 + Zn300 can correct K and Zn deficiencies in the soil and mitigate salt-stress effects via improving sugar beet growth, yield and quality, and K-use efficiency.

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Calcium and zinc mediated growth and physio-biochemical changes in mungbean grown under saline conditions

Cited by 20 publications

References 25 publications

Calcium Improves Germination and Growth of Sorghum bicolor Seedlings under Salt Stress

Calcium Improves Germination and Growth of Sorghum bicolor Seedlings under Salt Stress

Manejo nutricional com micronutrientes e seus efeitos sobre os componentes de produtividade na cevada

Integrated Application of K and Zn as an Avenue to Promote Sugar Beet Yield, Industrial Sugar Quality, and K-Use Efficiency in a Salty Semi-Arid Agro-Ecosystem

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