Effect of Salt Stress and Manganese Supply on Growth of Barley Seedlings

Pandya, Dhananjay; Mer, Rakesh; Prajith, P. K.; Pandey, Amar Nath

doi:10.1081/pln-200025835

Cited by 44 publications

(21 citation statements)

References 28 publications

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“…However, supplementation with Mn to the salt-stressed seedlings restored biomass loss, improved water status, and reduced Pro content and osmotic potential. These results corroborate previous findings in which Mn supplementation restored growth loss (Cramer and Nowak 1992;Pandya et al 2004). Salinity-induced ionic toxicity and osmotic stress decreased chlorophyll content by increasing the activity of chlorophyllase and overproduction of ROS (Saha et al 2010;Hasanuzzaman et al 2014a, b) or both.…”

Section: Discussionsupporting

confidence: 83%

“…Several studies also revealed that supplemental Mn plays an important role in the adaptive responses of plants under various environmental stresses. Simultaneous application of Mn improves growth, relative growth rate (RGR), net assimilation rate (NAR), and photosynthetic rate of salt-stressed barley seedlings (Cramer and Nowak 1992;Pandya et al 2004). Exogenous application of Mn reduces metal toxicity in plants by reducing metal accumulation and lipid peroxidation, and improving biomass, chlorophyll (chl) content, carotenoid content, and the antioxidant defense system (Palove-Balang et al 2006;Peng et al 2008;Sebastian and Prasad 2015).…”

Section: Introductionmentioning

confidence: 99%

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Manganese-induced salt stress tolerance in rice seedlings: regulation of ion homeostasis, antioxidant defense and glyoxalase systems

Rahman

Hossain

Mahmud

et al. 2016

Physiol Mol Biol Plants

131

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Hydroponically grown 12-day-old rice (Oryza sativa L. cv. BRRI dhan47) seedlings were exposed to 150 mM NaCl alone and combined with 0.5 mM MnSO 4 . Salt stress resulted in disruption of ion homeostasis by Na ? influx and K ? efflux. Higher accumulation of Na ? and water imbalance under salinity caused osmotic stress, chlorosis, and growth inhibition. Salt-induced ionic toxicity and osmotic stress consequently resulted in oxidative stress by disrupting the antioxidant defense and glyoxalase systems through overproduction of reactive oxygen species (ROS) and methylglyoxal (MG), respectively. The saltinduced damage increased with the increasing duration of stress. However, exogenous application of manganese (Mn) helped the plants to partially recover from the inhibited growth and chlorosis by improving ionic and osmotic homeostasis through decreasing Na ? influx and increasing water status, respectively. Exogenous application of Mn increased ROS detoxification by increasing the content of the phenolic compounds, flavonoids, and ascorbate (AsA), and increasing the activities of monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), superoxide dismutase (SOD), and catalase (CAT) in the salt-treated seedlings. Supplemental Mn also reinforced MG detoxification by increasing the activities of glyoxalase I (Gly I) and glyoxalase II (Gly II) in the salt-affected seedlings. Thus, exogenous application of Mn conferred salt-stress tolerance through the coordinated action of ion homeostasis and the antioxidant defense and glyoxalase systems in the salt-affected seedlings.

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Section: Discussionsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Manganese-induced salt stress tolerance in rice seedlings: regulation of ion homeostasis, antioxidant defense and glyoxalase systems

Rahman

Hossain

Mahmud

et al. 2016

Physiol Mol Biol Plants

131

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“…For the emergence and growth of seedlings the top 15 cm black-cotton soil, which is predominant in Saurashtra, was used. Physical and chemical properties of the soil were given earlier Pandya et al (2004). Soil was air dried and passed through a 2 mm mesh screen.…”

Section: Methodsmentioning

confidence: 99%

Growth, water status and nutrient accumulation of seedlings of Holoptelea integrifolia (Roxb.) Planch in response to soil salinity

Patel¹,

Pandey²

2008

PLANT SOIL ENVIRON

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Greenhouse experiments were conducted to assess the effects of soil salinity on emergence, growth, water status, proline content and mineral accumulation of seedlings of Holoptelea integrifolia (Roxb.) Planch (Ulmaceae). NaCl was added to the soil and salinity was maintained at 0.3, 3.9, 6.0, 7.9, 10.0, 12.1 and 13.9 dS/m. Salinity caused reduction in water potential of tissues, which resulted in internal water deficit to plants. Consequently, seedling growth significantly decreased with increase in soil salinity. Proline content in tissues increased with increase in soil salinity. There were no effective mechanisms to control net uptake of Na transport to shoot tissue. Potassium content increased in leaves to avoid Na toxicity to this tissue. Nitrogen content significantly increased in tissues in response to salinity. Phosphorus, calcium and magnesium content in tissues significantly decreased as salinity increased. Changes in tissues and whole-plant accumulation patterns of other nutrients, as well as possible mechanisms to avoid Na toxicity in this species in response to salinity, are discussed.

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“…This soil is fertile and fit for intensive agriculture. Physical and chemical properties of soil are given earlier (PANDYA et al 2004). …”

Section: Study Sitementioning

confidence: 99%

Effect of supplemental Ca2+ on NaCl-stressed castor plants (Ricinus communis L.)

Joshi

Patel

Pandey

et al. 2012

Acta Botanica Croatica

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-Greenhouse experiments were conducted to assess the effects of supplemental Ca 2+ in salinised soil on germination and plant growth response of castor plant (Ricinus communis L. Var. Avani-31, Euphorbiaceae). NaCl amounting to 390 g was thoroughly mixed with soil of seven lots, of 100 kg each, to give electrical conductivity of 4.1 dS m -1 . Further, Ca(NO 3 ) 2 × 4H 2 0 to the quantity of 97.5, 195, 292.5, 390, 487.5, and 585 g was separately mixed with soil of six lots to give 1:0.25, 1:0.50, 1:0.75, 1:1, 1:1.25, and 1:1.50 Na + /Ca 2+ ratios, respectively. The soil of the seventh lot contained only NaCl and its Na + /Ca 2+ ratio was 1:0. Soil without addition of NaCl and Ca (NO 3 ) 2 × 4H 2 0 served as control, with a 0:0 Na + /Ca 2+ ratio. Salinity significantly retarded seed germination and plant growth, but the deleterious effects of NaCl on seed germination were ameliorated and plant growth was restored with Ca 2+ supply at the critical level (1:0.25 Na + /Ca 2+ ratio) to salinised soil. Supply of Ca 2+ above the critical level further retarded seed germination and plant growth due to the increased soil salinity. Salt stress reduced N, P, K + and Ca 2+ content in plant tissues, but these nutrients were restored by addition of Ca 2+ at the critical level to saline soil. In contrast, Na + content in plant tissues significantly increased in response to salinity, but significantly decreased with increasing Ca 2+ supply to saline soil. The results are discussed in terms of the beneficial effects of Ca 2+ supply on the plant growth of Ricinus communis grown under saline conditions.

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Effect of Salt Stress and Manganese Supply on Growth of Barley Seedlings

Cited by 44 publications

References 28 publications

Manganese-induced salt stress tolerance in rice seedlings: regulation of ion homeostasis, antioxidant defense and glyoxalase systems

Manganese-induced salt stress tolerance in rice seedlings: regulation of ion homeostasis, antioxidant defense and glyoxalase systems

Growth, water status and nutrient accumulation of seedlings of Holoptelea integrifolia (Roxb.) Planch in response to soil salinity

Effect of supplemental Ca2+ on NaCl-stressed castor plants (Ricinus communis L.)

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