Antioxidant responses of shoots and roots of lentil to NaCl-salinity stress

Bandeoğlu, Ebru; Eyidoğan, Füsun; Yücel, Meral; Öktem, Hüseyin Avni

doi:10.1023/b:grow.0000014891.35427.7b

Cited by 169 publications

(124 citation statements)

References 36 publications

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“…Gradual increase in proline in leaves of hyacinth bean reflected the fact that increasing concentration of NaCl has caused considerable osmotic effect, and the plant employs proline as an osmoprotectant. Such responses have been observed in variety of leguminous plants, including pea (Bandeoglu et al 2004) and chickpea (Eyidogan and Oz 2007) under salt stress. Proline biosynthesis and accumulation bears a direct correlation with carbohydrate levels and is related to acquisition of salt tolerance in plants (Hare and Cress 1997).…”

Section: Discussionmentioning

confidence: 82%

Biochemical responses of Hyacinth bean (Lablab purpureus) to salinity stress

D’souza

Devaraj

2009

Acta Physiol Plant

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Effect of salinity on Hyacinth bean, Lablab purpureus (HA-4 cultivar) was evaluated in 10-day old seedlings with 100-500 mM NaCl over 72 h of exposure. The stress reduced dry and fresh weight, leaf surface area, root and shoot length, total chlorophyll, and RWC. Oxidative stress markers, H 2 O 2 , glutathione, TBARS, proline, ascorbic acid, total phenols, and total soluble sugar contents were significantly elevated. Salinity enhanced antioxidant enzymes, POX, and GR activities and reduced that of CAT in concentration and time dependent manner in leaves. Antioxidant enzymes in roots showed inverse relationship with concentration and time of exposure. Metabolic enzyme b-amylase activity increased in both leaves and roots. Acid phosphatase decreased in leaves and elevated in roots. Intensity of constitutive isozymes correlated with in vitro levels under stress, but the protein band patterns differed from controls. Lablab showed reasonable tolerance up to 300 mM NaCl, but leaves and roots differed in their response.

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Section: Discussionmentioning

confidence: 82%

Biochemical responses of Hyacinth bean (Lablab purpureus) to salinity stress

D’souza

Devaraj

2009

Acta Physiol Plant

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“…Salinity stress is one of the most important environmental factors which is responsible for the reducing plant productions (Nakano & Asada, 1980). This may be due to the effect of this high salinity on the physiology, growth and development of plants (Orcutt &Nilsen , 2000;Bandeoğlu et al, 2004;ElTayeb,2005;Shibli et al, 2007). Dry weight of plants by increasing the salinity degree of soil shows a descending trend and this is due to the impaired absorption of nutrients required for plant growth.…”

Section: Discussionmentioning

confidence: 99%

Effect of various soil salinity level on the antioxidant and physiological properties of corn plant (Zea mays)

Ezzati¹,

Karimi²

2015

JEBAS

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To study the effect of various soil salinity levels on the antioxidant enzymes and physiological characteristics of corn as an indicator of salt stress resistance, present study was conducted in 2013 at Research lab of environmental, Faculty of Biological Sciences, University of Kharazmi, Iran. Furthermore, desert soils of Libya, India, Iraq and Karaj were used for testing the effect of soil salinity on the quantity of oxidant enzymes and various properties of maize plant. For providing favorable atmospheric conditions 33000 lux light and spray of perlite medium was used. Corn crop is highly sensitive to soil salinity so all the cultivation was carried out under conditions of soil EC lower than 20 ds/m and 8.5 pH. Results of the study revealed that the salt stress significantly affect the amount of antioxidant enzymes such as guaiacol peroxidase and malondialdehyde. Furthermore, it was reported that saline soil did not have any negative effect on the physiological characteristics and growth of corn plant growth.

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“…A coloração de segmentos radiculares com reagente de Shiff confi rmou este resultado, já que este reagente evidencia aldeídos, os quais são subprodutos da peroxidação de lipídios (Yamamoto et al 2001). Considerando que a concentração de TBARS tem sido usada como indicador de danos oxidativos (Dionisio-Sese & Tobita 1998;Sairam & Srivastava 2002;Bandeoglu et al 2004), é possível que a salinidade não tenha acarretado o estresse oxidativo secun-dário em raízes de feijão caupi. Assim sendo, esta espécie deve apresentar mecanismos efi cientes para a renovação dos lipídios de membrana afetados e/ou para a remoção das EROs produzidas.…”

Section: Discussionunclassified

“…Diversos estudos têm demonstrado o papel dos mecanismos antioxidantes enzimáticos na proteção contra o estresse oxidativo secundário induzido pela salinidade (Bandeoglu et al 2004;Bem Amor et al 2005;Rubio et al 2009). Em raízes de arroz (Lin & Kao 2001), tomate (Mittova et al 2004), milho (Azevedo-Neto et al 2006) e feijão caupi (Cavalcanti et al 2007), o aumento da atividade de enzimas como SOD, APX, CAT e POX está associado com a manutenção dos níveis de peroxidação de lipídios sob estresse salino.…”

Section: Discussionunclassified

Atividade de enzimas antioxidantes e inibição do crescimento radicular de feijão caupi sob diferentes níveis de salinidade

et al. 2012

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ABSTRACT(Activities of antioxidant enzymes and root growth inhibition in cowpea seedlings exposed to diff erent salt levels). Phenol peroxidase (POX) is a dual enzyme that is involved with hydrogen peroxide scavenging and lignin biosynthesis, contributing to growth inhibition by secondary wall thickening. In order to relate growth inhibition to salt-induced oxidative modulation, the activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and POX were evaluated in cowpea roots under salinity. Four-day-old seedlings of the Pitiúba and Pérola cultivars were exposed to 0, 25, 50, 75 and 100 mM NaCl in germination paper under controlled conditions. Aft er two days of treatment, root length was reduced under 100 mM NaCl by 56 and 26% in Pitiúba and Pérola, respectively, which was associated with enhanced electrolyte leakage and cell death in the root apex. NaCl salinity did not trigger lipid peroxidation, indicating that cell death was probably due to membrane damage instead of oxidative stress. Salt stress reduced the activity of SOD, CAT and APX and increased the POX activity, demonstrating that this enzyme plays a role in oxidative protection in cowpea roots exposed to NaCl salinity. In conclusion, salt-induced growth inhibition in cowpea roots could be attributed, at least in part, to a coordinate action involving an increase in POX activity and a drop in CAT and APX activities. Atividade de enzimas antioxidantes e inibição do crescimento radicular de feijão caupi sob diferentes níveis de salinidade

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Antioxidant responses of shoots and roots of lentil to NaCl-salinity stress

Cited by 169 publications

References 36 publications

Biochemical responses of Hyacinth bean (Lablab purpureus) to salinity stress

Biochemical responses of Hyacinth bean (Lablab purpureus) to salinity stress

Effect of various soil salinity level on the antioxidant and physiological properties of corn plant (Zea mays)

Atividade de enzimas antioxidantes e inibição do crescimento radicular de feijão caupi sob diferentes níveis de salinidade

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