Effects of cytokinin on photosynthetic gas exchange, chlorophyll fluorescence parameters and antioxidative system in seedlings of eggplant (Solanum melongena L.) under salinity stress

Wu, Xuexia; Zhu, Zongwen; Li, Xian; Zha, Dingshi

doi:10.1007/s11738-012-1010-2

Cited by 80 publications

(55 citation statements)

References 68 publications

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“…In the present study, chlorophyll a, b and total chlorophyll contents as well as chlorophyll fluorescence of strawberry plants decreased under salinity and ID stresses. It is parallel to what has already been observed in radish (Jamil et al ), tomato (Ciobanu and Sumalan ), oilseed rape (Naeem et al ), wheat (Kanwal et al ), eggplant (Wu et al ) and sunflower (Akram et al , Heidari et al ) under saline stress. Our results are similar to those found in Phytolacca americana (Liang et al ), Arabidopsis (Koen et al ) and peanut (Zhang et al ) under ID.…”

Section: Discussionsupporting

confidence: 83%

“…Photosynthetic activity of most plants decreases under saline conditions because PSII activity is disturbed and thylakoid membrane along with its pigments is damaged due to formation of ROS under salinity stress (Dombrowski , Naeem et al , Shaheen et al , Wu et al , Deinlein et al , AbdElgawad et al , Askary et al , Gomes et al ). Like many other stresses, the deficiency of iron can also generate ROS and disturb the electron transport chain in the chloroplast because iron plays an important role in it (Graziano and Lamattina ).…”

Section: Discussionmentioning

confidence: 99%

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Influence of exogenously applied nitric oxide on strawberry (Fragaria × ananassa) plants grown under iron deficiency and/or saline stress

Kaya

Akram

Ashraf

2018

Physiologia Plantarum

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A study was carried out to assess the protective effects of exogenously applied nitric oxide (NO) in the form of its donor sodium nitroprusside (SNP) to strawberry seedlings (Fragaria × ananassa cv. Camarosa) grown under iron deficiency (ID), salinity stress or combination of both. The experimental design contained control, 0.1 mM FeSO (ID, Fe deficiency); 50 mM NaCl (S, Salinity) and ID + S. Plants were sprayed with 0.1 mM SNP or 0.1 mM sodium ferrocyanide, an analogue of SNP containing no NO. The deleterious effects of ID + S treatments on plant fresh and dry matters, total chlorophyll and chlorophyll fluorescence were more striking than those caused by the ID or S treatment alone. Furthermore, combination of salinity and iron stress exacerbated electrolyte leakage (EL) and the levels of malondialdehyde (MDA) and hydrogen peroxide (H O ) in plant leaves compared to those in plants grown with either of the single stresses. NO treatment effectively reduced EL, MDA and H O in plants grown under stress conditions applied singly or in combination. Salt stress alone and with ID reduced the superoxide dismutase (EC1.15.1.1) and catalase (EC 1.11.1.6) activities but increased that of POD (EC 1.17.1.7). Exogenously applied NO led to significant changes in antioxidant enzyme activities in either ID or S than those by ID+S. Overall, exogenously applied NO was more effective in mitigating the stress-induced adverse effects on the strawberry plants exposed to a single stress than those due to the combination of both stresses.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Influence of exogenously applied nitric oxide on strawberry (Fragaria × ananassa) plants grown under iron deficiency and/or saline stress

Kaya

Akram

Ashraf

2018

Physiologia Plantarum

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“…Such inhibition in photosynthetic process is also discussed by Aldesuquy et al (2014) terms of reduced leaf area, photosynthetic pigments content, Hill reaction and 14 CO 2 fixation, and altered morphology of chloroplasts, number of reaction centres, net CO 2 assimilation rate and Rubisco activity. Furthermore, study showed that salinity stress declined biomass accumulation in eggplant due to down regulation of photosynthetic gas exchange rate, net photosynthetic rate, transpiration rate, stomatal conductance, water utilization efficiency, quantum efficiency of PSII photochemistry and photochemical quenching, and up regulation of non-photochemical quenching (Wu et al 2012). It has been reported that NaCl (5-30 mM) causes inhibition in growth, chlorosis, necrosis and finally death in Rosa chinensis due to higher accumulation of Cl -than Na ?…”

Section: Direct Effects Of Salinity Stress On Plantsmentioning

confidence: 99%

Roles of osmoprotectants in improving salinity and drought tolerance in plants: a review

Singh

Kumar

Singh

et al. 2015

Rev Environ Sci Biotechnol

514

259

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Abiotic stresses collectively are responsible for crop losses worldwide. Among various abiotic stresses, drought and salinity are the most destructive. Different strategies have been adopted for the management of these stresses. Being complex traits, conventional breeding approaches have shown less success in improving salinity and drought stress tolerance. Roles of compatible solutes in salinity and drought stress tolerance have been studied extensively. At physiological level, osmotic adjustment is an adaptive mechanism involved in drought and/or salinity tolerance and permits the maintenance of turgor pressure under stress conditions. Increasing evidences from series of in vivo and in vitro studies involving physiological, biochemical, genetic, and molecular approaches strongly suggest that osmolytes such as ammonium compounds (polyamines, glycinebetaine, b-alanine betaine, dimethyl-sulfonio propionate and choline-O-sulfate), sugars and sugar alcohols (fructan, trehalose, mannitol, D-ononitol and sorbitol) and amino acids (proline and ectoine) perform important function in adjustment of plants against salinity and drought stresses. Thus, aim of this review is to expose how to osmoprotectants detoxify adverse effect of reactive oxygen species and alleviate drought and salinity stresses. An understanding of the relationship between these two sets of parameters is needed to develop measures for mitigating the damaging impacts of salinity and drought stresses.

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“…Soil salinization has become one of the most crucial abiotic stresses that limit the growth of eggplant in greenhouse cultivation system. It has been estimated that approximately 800 million ha of land is salt-affected worldwide (Munns and Tester 2008), and more severely, salinization stress are still expanding, posing a greater threat to sustainable development of agriculture (Wu et al 2012). Soil salinization is mainly caused by typical land exploitation for agriculture but limited attention has been paid to soil salinization Abstract Eggplant (Solanum melongena L.) is an edible vegetable cultivated and consumed worldwide.…”

Section: Introductionmentioning

confidence: 99%

Identification and characterization of CBL and CIPK gene families in eggplant (Solanum melongena L.)

Jiang

Ren

et al. 2016

Mol Genet Genomics

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Eggplant (Solanum melongena L.) is an edible vegetable cultivated and consumed worldwide. But the production of eggplant is significantly limited by the soil salinization in greenhouse cultivation system. The main ions are Na(+), Ca(2+), Mg(2+), K(+), Cl(-), and SO4 (2-) in the salty soils. Calcineurin B-like proteins (CBLs) are calcium sensors and control the affinities and activities of numerous ion transporters with CBL-interacting protein kinases (CIPKs). In this study, a total of 5 CBL and 15 CIPK genes from eggplant were identified first. The yeast two-hybrid (Y2H) assay and bimolecular fluorescence complementation (BiFC) assay demonstrated the interaction network between SmCBLs and SmCIPKs. Strikingly, some new CBL-CIPK complexes were found which have never been discovered in any other plant species. The expression level of each SmCBL or SmCIPK under 200 mM NaCl, low potassium (LK; 100 μM), high Mg with 20 mM MgCl2 and MgSO4 stresses were examined by quantitative real-time PCR (qRT-PCR) assay and these CBL and CIPK genes were found to respond to the four ion stresses differently. Interestingly, the differential expression level of SmCIPK3, -24 or -25 to Mg(2+) is higher than Na(+), and Cl(-) is higher than SO4 (2-). In addition, different magnesium salt can induce different response mechanisms in eggplant. In summary, this study provides insight into the characterization of CBLs and CIPKs in eggplant. It may be used in a novel biotechnological breeding program strategy to create new eggplant cultivars, leading to enhance different ion tolerance.

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Effects of cytokinin on photosynthetic gas exchange, chlorophyll fluorescence parameters and antioxidative system in seedlings of eggplant (Solanum melongena L.) under salinity stress

Cited by 80 publications

References 68 publications

Influence of exogenously applied nitric oxide on strawberry (Fragaria × ananassa) plants grown under iron deficiency and/or saline stress

Influence of exogenously applied nitric oxide on strawberry (Fragaria × ananassa) plants grown under iron deficiency and/or saline stress

Roles of osmoprotectants in improving salinity and drought tolerance in plants: a review

Identification and characterization of CBL and CIPK gene families in eggplant (Solanum melongena L.)

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