Adaptation responses in C4 photosynthesis of maize under salinity

Omoto, Eiji; Taniguchi, Masaru; Miyake, Hiroshi

doi:10.1016/j.jplph.2011.11.009

Cited by 79 publications

(67 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, in bundle sheath cells, activities of NADP-malic enzyme and Rubisco decrease without any visual symptoms of damage to chloroplasts in bundle sheath cells. Moreover, pyruvate orthophosphate dikinase protein content increases, but phosphoenolpyruvate carboxylase protein content decreases in maize due to salinity (Omoto et al 2012). Gas exchange analysis confirmed that reductions in net photosynthetic rate are connected with the limited availability of intercellular carbon dioxide due to reduced rates of transpiration and stomatal conductance in salt-treated maize plants.…”

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 76%

“…Carbon fixation in maize is very sensitive to salt stress (Omoto et al 2012). Both stomatal and nonstomatal limitations and their combination are associated with salinity-induced reductions in maize photosynthesis (Gong et al 2011).…”

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

“…Both stomatal and nonstomatal limitations and their combination are associated with salinity-induced reductions in maize photosynthesis (Gong et al 2011). Reduced stomatal conductance, impaired activities of carbon fixation enzymes, reduced photosynthetic pigments, and destruction of photosynthetic apparatus are among the key factors limiting carbon fixation capacity of maize plants under salt stress (Kaya et al 2010;Gong et al 2011;Omoto et al 2012;Qu et al 2012).…”

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

“…As a C 4 plant, maize uses NADP-malic enzyme-type photosynthesis (Omoto et al 2012), and these plants fix atmospheric carbon dioxide principally into oxaloacetate through phosphoenolpyruvate carboxylase in mesophyll cells. Oxaloacetate is then transported to mesophyll cell chloroplasts and reduced to malate by the NADP-dependent malate dehydrogenase enzyme.…”

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

“…In that way, higher carbon dioxide contents near Rubisco in the bundle sheath cells restrain oxygenase activity and help to improve photosynthesis compared with C 3 plants at the expense of reduced photorespiration (Kanai and Edwards 1999). Activities of C 4 photosynthetic enzymes like pyruvate orthophosphate dikinase, phosphoenolpyruvate carboxylase, NADP-dependent malate dehydrogenase, and NAD-dependent malate dehydrogenase tend to increase under salt stress in maize even though the structure of mesophyll cell chloroplasts is damaged (Omoto et al 2012). In contrast, in bundle sheath cells, activities of NADP-malic enzyme and Rubisco decrease without any visual symptoms of damage to chloroplasts in bundle sheath cells.…”

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

See 4 more Smart Citations

Salt stress in maize: effects, resistance mechanisms, and management. A review

Farooq

Hussain

Wakeel

et al. 2015

Agron. Sustain. Dev.

590

383

View full text Add to dashboard Cite

Maize is grown under a wide spectrum of soil and climatic conditions. Maize is moderately sensitive to salt stress; therefore, soil salinity is a serious threat to its production worldwide. Understanding maize response to salt stress and resistance mechanisms and overviewing management options may help to devise strategies for improved maize performance in saline environments. Here, we reviewed the effects, resistance mechanisms, and management of salt stress in maize. Our main conclusions are as follows: (1) germination and stand establishment are more sensitive to salt stress than later developmental stages. (2) High rhizosphere sodium and chloride decrease plant uptake of nitrogen, potassium, calcium, magnesium, and iron. (3) Reduced grain weight and number are responsible for low grain yield in maize under salt stress. Sink limitations and reduced acid invertase activity in developing grains is responsible for poor kernel setting under salt stress. (4) Exclusion of excessive sodium or its compartmentation into vacuoles is an important adaptive strategy for maize under salt stress. (5) Apoplastic acidification, required for cell wall extensibility, is an important indicator of salt resistance, but not essential for better maize growth under salt stress. (6) Upregulation of antioxidant defense genes and β-expansin proteins is important for salt resistance in maize. (7) Arbuscular mycorrhizal fungi improve salt resistance in maize due to better plant nutrient availability. (8) Seed priming is an effective approach for improving maize germination under salt stress. (9) Integration of screening, breeding and ion homeostasis mechanisms into a functional paradigm for the whole plant may help to enhance salt resistance in maize.

show abstract

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 76%

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

Section: Light Harvesting and Carbon Fixationmentioning

confidence: 99%

See 3 more Smart Citations

Salt stress in maize: effects, resistance mechanisms, and management. A review

Farooq

Hussain

Wakeel

et al. 2015

Agron. Sustain. Dev.

590

383

View full text Add to dashboard Cite

show abstract

Water and radiation use in maize–pea intercropping is enhanced with increased plant density

Fan

Chai

et al. 2020

Agronomy Journal

View full text Add to dashboard Cite

Crop management to improve water use is a well‐established strategy for the effective use of limited natural resources in intercropping systems. Here, maize (Zea mays L.)– pea (Pisum sativum L.) strip intercropping with three maize densities (D1: 45,000, D2: 52,500, and D3: 60,000 plants ha−1) was compared to sole maize with three maize densities and sole pea. Soil water extraction and water difference were determined through soil water content over depth and across rows in intercropping, measured six times during the growing season. Land equivalent ratio (LER), radiation use efficiency (RUEGY for grain yield, and RUEBM for biomass), and water use efficiency (WUE) were calculated to compare intercropping with sole cropping. A soil water supplement potential from intercropped maize strips to intercropped pea was observed during the pea independent growth and co‐growth with maize periods, which declined as the growing season progressed and with increased maize density. After pea harvest, the potential of compensatory soil water for maize existed from the pea strips, which was greater with increased maize density. Maize–pea intercropping produced 23–38% greater total yield than corresponding sole crops, as the LER ranged from 1.23 to 1.38. Maize–pea intercropping with D3 attained the greatest grain yield, RUEGY, RUEBM, and WUE among three maize density treatments, and was 10, 9, 17, and 14% greater than that of corresponding sole maize. Increasing maize density increased grain yield, radiation and water use efficiency, and LER, indicating that the intercropping advantage was improved with increased maize density.

show abstract

Assessing four different macroscopic water uptake models for maize plant (ZEA mays L.) under salinity stress*

Jalali

Kapourchal

2020

Irrigation and Drainage

View full text Add to dashboard Cite

The global shortage of fresh water in arid/semi‐arid regions has inevitably led to the use of unconventional sources of water. One of the strategies for managing saline water consumption is by using simulator models that can help in understanding the physiological response of crops. In this study the number of germinated seeds, shoot fresh weight and plant leaf area index as three of the main parameters of the vegetative stage of maize plants were investigated. In order to quantify the effect of different salinities on vegetative growth parameters, the macroscopic models of Homaee et al., Dirksen et al., van Genuchten and Hoffman and Maas and Hoffman were tested. The fitting of different models to measured data of germinated seeds showed that the Maas and Hoffman model was superior over the other three models with r and NSE values of 0.87 and 0.79, respectively. Similarly, the model of Homaee et al. with the values of r = 0.98 and NSE = 0.89 was the best model for the maize fresh weight variable. Finally, for the leaf area index variable, the van Genuchten and Hoffman model having values of r = 0.95 and NSE = 0.91 was able to provide a better estimate than the other models.

show abstract

Adaptation responses in C4 photosynthesis of maize under salinity

Cited by 79 publications

References 49 publications

Salt stress in maize: effects, resistance mechanisms, and management. A review

Salt stress in maize: effects, resistance mechanisms, and management. A review

Water and radiation use in maize–pea intercropping is enhanced with increased plant density

Assessing four different macroscopic water uptake models for maize plant (ZEA mays L.) under salinity stress*

Contact Info

Product

Resources

About