Early effects of excess cadmium uptake in Phaseolus vulgaris.

Fuhrer, Jürg

doi:10.1111/1365-3040.ep11572648

Cited by 6 publications

(1 citation statement)

References 35 publications

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“…Under HMs, exogenous phytohormones stimulated the increase of soluble phenolics and free proline contents in wheat seedlings (Ergün and Öncel 2012). The ABA and GA 3 hormones in interaction with Pb and Zn may cause an increase in total phenolic content, but hormones in interaction with Cd prevent an increase in phenolic compounds (Fuhrer 1982;Ahmad et al 2015). The effect of HMs alone or in combination with phytohormones have completely different influences on plants, depending on the type of plant, its development stage, HM concentration and the duration of treatment.…”

Section: Exogenous Application Of Hormones In the Adaptation Of Plantmentioning

confidence: 99%

Phytohormone Priming: Regulator for Heavy Metal Stress in Plants

Sytar

Kumari

Yadav

et al. 2018

J Plant Growth Regul

343

117

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Phytohormones act as chemical messengers and, under a complex regulation, allow plants to sustain biotic and abiotic stresses. Thus, phytohormones are known for their regulatory role in plant growth and development. Heavy metals (HMs) play an important role in metabolism and have roles in plant growth and development as micronutrients. However, at a level above threshold, these HMs act as contaminants and pose a worldwide environmental threat. Thus, finding eco-friendly and economical deliverables to tackle this problem is a priority. In addition to physicochemical methods, exogenous application of phytohormones, i.e., auxins, cytokinins, and gibberellins, can positively influence the regulation of the ascorbate-glutathione cycle, transpiration rate, cell division, and the activities of nitrogen metabolism and assimilation, which improve plant growth activity. Brassinosteroids, ethylene and salicylic acid have been reported to enhance the level of the anti-oxidant system, decrease levels of ROS, lipid peroxidation and improve photosynthesis in plants, when applied exogenously under a HM effect. There is a crosstalk between phytohormones which is activated upon exogenous application. Research suggests that plants are primed by phytohormones for stress tolerance. Chemical priming has provided good results in plant physiology and stress adaptation, and phytohormone priming is underway. We have reviewed promising phytohormones, which can potentially confer enhanced tolerance when used exogenously. Exogenous application of phytohormones may increase plant performance under HM stress and can be used for agro-ecological benefits under environmental conditions with high HMs level.

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Section: Exogenous Application Of Hormones In the Adaptation Of Plantmentioning

confidence: 99%

Phytohormone Priming: Regulator for Heavy Metal Stress in Plants

Sytar

Kumari

Yadav

et al. 2018

J Plant Growth Regul

343

117

View full text Add to dashboard Cite

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Prior temperature exposure affects subsequent Cd-induced ethylene production in rice leaves

Chen

Kao

1995

Plant Science

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Nickel toxicity in two durum wheat cultivars differing in drought sensitivity

Pandolfini

Gabbrielli

Ciscato

1996

J. of Plant Nutrition

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The effects of nickel (Ni) on growth, leaf water status, and mineral nutrient concentration were studied in two wheat (Triticum durum Desf.) cultivars with different sensitivity to water stress: 'Adamello' [drought sensitive (DS)] and 'Ofanto' [drought tolerant, (DT)]. The DT cultivar showed a higher Ni absorption capacity: 'Ofanto' seedlings grown in the presence of 35 ΜM Ni had a 3.5 times greater concentration of Ni in roots than did 'Adamello'. Despite the greater Ni tissue content, the DT cultivar exhibited better growth and nutritional status when compared to the DS cultivar. In the DS cultivar the concentration of chlorophyll a and b was reduced by Ni treatment. Chlorophyll a concentration decreased in the DT cultivar, but to a lesser extent than in the DS cultivar; chlorophyll b was not altered by Ni level in the DT cultivar. Nickel caused a decrease in the water potential (ψ w ) and relative water content (RWC) in both cultivars, but these decreases were greater in the DS cultivar. The antioxidative defense enzymes, guaiacol peroxidase, ascorbate peroxidase, and glutathione reductase, showed increased activity in Ni-treated DS seedlings; this increase in activity was not observed in the DT seedlings. These data suggest that different wheat genotypes may markedly differ in Ni uptake and sensitivity and that a enhanced capacity to counteract Ni stress may be associated with drought resistance.

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Early effects of excess cadmium uptake in Phaseolus vulgaris.

Abstract: Seedlings of PluLseolus vulgaris were exposed to solutions containing Cd^^ in the range 0

Cited by 6 publications

References 35 publications

Phytohormone Priming: Regulator for Heavy Metal Stress in Plants

Phytohormone Priming: Regulator for Heavy Metal Stress in Plants

Prior temperature exposure affects subsequent Cd-induced ethylene production in rice leaves

Nickel toxicity in two durum wheat cultivars differing in drought sensitivity

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