Water deficit stress mitigation by calcium chloride in Catharanthus roseus: Effects on oxidative stress, proline metabolism and indole alkaloid accumulation

Jaleel, Cheruth Abdul; Manivannan, P.; Sankar, B.; Kishorekumar, A.; Gopi, R.; Somasundaram, R.; Panneerselvam, R.

doi:10.1016/j.colsurfb.2007.06.006

Cited by 200 publications

(122 citation statements)

References 49 publications

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“…Also, there is no available information browse production of the species. Plants are constantly confronted with various biotic and abiotic stress factors such as low or high temperature, salt, drought, flooding, heat, oxidative stress and heavy metal toxicity (Mahajan and Tuteja, 2005;Achuo et al, 2006;Jaleel et al, 2007). Water availability and temperature are important factors that determine whether or not dispersed seeds germinate.…”

Section: Introductionmentioning

confidence: 99%

Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Al-Taisan¹

2010

American Journal of Applied Sciences

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Problem statement: Water stress due to drought and salinity is probably the most significant abiotic factor limiting plant and also crop growth and development. Salinity and drought stresses are physiologically related, because both induce osmotic stress and most of the metabolic responses of the affected plants are similar to some extent. Water deficit affects the germination of seed and the growth of seedlings negatively. Temperature is an exceedingly important factor in seed germination. It directly affects whether a plant can sprout and, if so, how long it will take to emerge from the ground. Approach: The objective of this investigation was to determine the effect of four alternating temperature regime, drought and salt stress on germination characteristics of Pennisetum divisum. Seeds were germinated at four alternating temperatures (10/20, 15/25, 20/35 and 25/40°C at 12 h light). Seeds were also germinated with the iso-osmotic concentrations of sodium chloride (NaCl) or in polyethylene glycol PEG8000 (0, -0.2, -0.4, -0.6 and -0.8 MPa) for 14 days. Concentrations were applied to determine their effects on seed germination and seedling growth under laboratory conditions. The effects of different osmotic concentrations of NaCl and PEG were compared to distilled water (control). Results: Optimum germination was attained at 15/25°C which corresponds to temperatures prevailing during spring time. The highest values of germination parameters were obtained with no osmotic potential (0 MPa) under 15/25°C. The final germination percentage and rate of germination in the Pennisetum divisum treated seeds were decreased with the increase of the osmotic potential. At treatment by PEG, the germination was severely decreased at -0.6 MPa. While, no germination occurred at-0.8 MPa by NaCl. The results of the effects of the different osmotic potential of NaCl and PEG on the Radicle Length (RL) and the Hypocotyl Length (HL) mm of the tested P. divisum seeds were retarded when compared to the control. Conclusion: Results indicated germination sensitive to both the stresses. However, seedling growth was more sensitive to NaCl than was germination. However, seedling growth was more sensitive to NaCl than was germination responses to water stress induced by PEG and NaCl. Results also indicated that seed germination of P. divisum is less sensitive to osmotic potential indicating that the seeds of the species are efficient in osmotically adjusting to soluble salts. This suggests the possibility of revegtating moderately salt affected soils.

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Section: Introductionmentioning

confidence: 99%

Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Al-Taisan¹

2010

American Journal of Applied Sciences

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“…10, No. 8; genotypes as a response to metabolize the radicals produced superoxides (Jaleel et al, 2007). SOD, which may be mitochondrial, cytosolic or chloroplastidic, is responsible for the dismutation of O 2 converting it to hydrogen peroxide and oxygen (Grob et al, 2013).…”

Section: Statistimentioning

confidence: 99%

Antioxidant Enzymes Activity in the Elaeis guineensis Jacq. Submitted to Drought

Neto¹,

Rocha²,

Abade³

et al. 2018

JAS

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Oil palm is a very responsive culture in relation to climate change that intensifies or lowers its productivity. Thus, the objective of this study is to evaluate the activity of antioxidant enzymes in two genotypes of E. guineensis, both under water deficiency. The experiment conducted in a greenhouse at UFRA used genotypes 2528 and 2501 of E. guineensis submitted to water deficiency from the 10 th day. The biochemical analysis was evaluated at the 5% level of significance by the Tukey test. The antioxidant variables analyzed were superoxide dismutase, catalase activity, ascorbate peroxidase activity, Malondialdeído (MDA), Glutathione and ascorbic acid content. In view of the obtained results, it was observed increases of the antioxidant enzymes when the genotypes were submitted to the water deficiency, presented significance for the results. Therefore, the study suggests that oil palm had a good use and adaptation when submitted to water deficit and that genotype 2528 was more responsive to maintain its vital biochemical activities.

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“…Salt stress is caused simply by occurrence of metabolic disorders due to deterioration of moisture content in the soil or due to excessive accumulation of Na + and Cl " in plants (Lee et al, 2014). Chemical treatment and agronomical crop management practices have been tried to alleviate the water deficit effects, but the application of CaCl 2 to stressed plants have attracted little attention (Jaleel et al, 2007). One possible approach to reduce the effect of water deficit on plant productivity is through the addition of calcium supplements to irrigation water (Manivannan et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Response of Caper Plant to Drought and Different Ratios of Calcium and Sodium Chloride1

2016

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-Caper (Capparis spinosa) is used as multipurpose and adaptable plant which provides a valuable opportunity to enhance greenery in harsh climatic areas. This plant like the others is affected by drought and sodium chloride stresses as the most common abiotic stresses worldwide. This study was carried out to determine the interaction between drought and different ratios of sodium and calcium chloride on caper. Droughts stress were two levels of 100 and 75% of field capacity and were applied based on the daily weighting method of pots. Salt treatments were four different ratios of calcium chloride: sodium chloride (1:0, 1:1, 1:3, 1:5]. Treatments started when the plants were sown in the pots. Results indicated that higher ratios of calcium chloride than sodium chloride which caused salinity stress have destructive effect on water relationships and contents of the caper. This stress affected growth, morphological, and physiological function related traits in a negative way. Growth and other traits decreased under water deficit conditions. It seems that interaction between salinity and drought had the most destructive effect on this plant and decreasing its quality and quantity of its traits.Keywords: salt stress, chlorophyll index, water content. Palavras-chave: estresse salino, índice de clorofila, teor de água. RESUMO -A alcaparra (Capparis

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Water deficit stress mitigation by calcium chloride in Catharanthus roseus: Effects on oxidative stress, proline metabolism and indole alkaloid accumulation

Cited by 200 publications

References 49 publications

Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Comparative Effects of Drought and Salt Stress on Germination and Seedling Growth of <i>Pennisetum divisum</i> (Gmel.) Henr.

Antioxidant Enzymes Activity in the Elaeis guineensis Jacq. Submitted to Drought

Response of Caper Plant to Drought and Different Ratios of Calcium and Sodium Chloride1

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