Photosynthetic changes and protective mechanisms against oxidative damage subjected to isolated and combined drought and heat stresses in Jatropha curcas plants

Silva, Evandro Nascimento; Ferreira‐Silva, Sérgio Luiz; Fontenele, Adilton de Vasconcelos; Ribeiro, Rafael Vasconcelos; Viégas, Ricardo Almeida; Silveira, J. A. G.

doi:10.1016/j.jplph.2010.03.005

Cited by 215 publications

(140 citation statements)

References 34 publications

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“…Miyake and Asada (1996) reported that low levels of H 2 O 2 (2 μM) inactivate chlAPX within several seconds, when the level of ascorbic acid is too low for the APX catalytic cycle to operate. This phenomenon was previously reported in purslane (Yazici et al, 2007), jatropha (Silva et al, 2010), rice (Lee et al, 2001), pea (Moran et al, 1994), bean (Jebara et al, 2005), and the mangrove Bruguiera parviflora (Parida et al, 2004). CAT deactivation by salt stress may be due to the prevention of new enzyme synthesis (Feierabend et al, 1992) or CAT photo-inactivation (Polle, 1997).…”

Section: Discussionsupporting

confidence: 62%

“…Chl is one of the first molecules to be negatively affected by water stress (Sarijeva et al, 2007;Pompelli et al, 2010a, b;Silva et al, 2010). The inhibitory effects of salt on Chl could be due to the suppression of specific enzymes, which are responsible for the synthesis of green pigments, an effect that depends on the biological processes and developmental stages of the plant and on the type and concentration of salt.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, there is no unified concept of the nonstomatal events that constrain photosynthesis. It is well-known that salt may result in impairments in photosystem II activity (Garg and Singla, 2004), chlorophyll (Chl) content (Sudhakar et al, 1997;Silva et al, 2010), and in the activities of key enzymes involved in the photosynthetic carbon reduction cycle (Guerrier, 1988).…”

Section: Introductionmentioning

confidence: 99%

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Photosynthesis and antioxidant activity in Jatropha curcas L. under salt stress

Campos

Hsie

Granja

et al. 2012

Braz. J. Plant Physiol.

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Biodiesel is an alternative to petroleum diesel fuel. It is a renewable, biodegradable, and nontoxic biofuel. Interest in the production of biodiesel from Jatropha curcas L. seeds has increased in recent years, but the ability of J. curcas to grow in salt-prone areas, such as the Caatinga semiarid region, has received considerably meager attention. The aim of this study was to identify the main physiological processes that can elucidate the pattern of responses of J. curcas irrigated with saline water, which commonly occurs in the semiarid Caatinga region. This study measured the activity of the antioxidant enzymes involved in the scavenging of reactive oxygen species, which include catalase (CAT) and ascorbate peroxidase (APX), as well as malondialdehyde (MDA) levels. The levels of chlorophyll (Chl), carotenoids, amino acids, proline, and soluble proteins were also analyzed. The net carbon assimilation rate (P N ), stomata conductance (g s ), and transpiration rate (E) decreased with salt stress. The activities of CAT and APX were decreased, while H 2 O 2 and MDA levels as well as electrolyte leakage were significantly increased in salt-stressed plants compared to the untreated ones. These observations suggest that the ability of J. curcas plants resist to salt stress is associated with the activities of protective enzymes and their defensive functions. However, our results indicate that the reactive oxygen species scavenging system is not sufficient to protect J. curcas leaves against oxidative damage caused by salt stress, and, therefore, it cannot be treated as a salt tolerant plant species.

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Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photosynthesis and antioxidant activity in Jatropha curcas L. under salt stress

Campos

Hsie

Granja

et al. 2012

Braz. J. Plant Physiol.

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“…One of the main crops currently being proposed as a diesel/kerosene substitute or extender, is Jatropha curcas (Linnaeus) (Openshaw 2000, Francis et al, 2005. Water stress studies have been already carried out in several plant species, seeking for responses of different mechanisms in leaves under water distress (Theisen, 1988;Chappelle et al, 1984;Dahn et al, 1992;Broglia, 1993;Munns, 2002;Marcassa et al, 2006;Abou Kheira & Atta, 2009;Maes et al, 2009;Caires et al, 2010;Robredo et al, 2010;Patane & Cosentini, 2010;Tushar et al, 2010;Silva et al, 2010). In this section, the effect of water deficit in jatropha plants is investigated using chlorophyll fluorescence spectroscopy.…”

Section: Fr/ffr Ratiomentioning

confidence: 99%

Abiotic Stress Diagnosis via Laser Induced Chlorophyll Fluorescence Analysis in Plants for Biofuel

Gouveia‐Neto¹,

Silva-Jr²,

Cunha³

et al. 2011

Biofuel Production-Recent Developments and Prospects

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“…In general, one may argue about an additive effect of drought and high temperature on plant physiology, increasing the limitation imposed to the photosynthesis (Grigorova et al, 2011;Prasad et al, 2011;Silva et al, 2010;Yordanov et al, 1997). However, the occurrence of a previous stress may improve plant performance during a next stressful event (Havaux, 1992(Havaux, ,1993.…”

mentioning

confidence: 99%

Can the critical temperature for photochemical damage in common bean plants be changed after a drought event?

et al. 2015

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Low water availability and high temperatures occur under field conditions and we hypothesize that the critical temperature for photochemical damage (T C ) in common bean (Phaseolus vulgaris L.) plants is increased by the occurrence of previous water deficit in a genotype-dependent manner. Five common bean cultivars A320, A222, Carioca, BAT477 and Ouro Negro were evaluated. Thirty days after seedlings emergence, one group of plants was exposed to water deficit for ten days and rehydrated and another one was maintained well hydrated during the experimental period. The minimum chlorophyll fluorescence (F O ) was monitored in leaf discs exposed to temperatures ranging from 25 to 45

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Photosynthetic changes and protective mechanisms against oxidative damage subjected to isolated and combined drought and heat stresses in Jatropha curcas plants

Cited by 215 publications

References 34 publications

Photosynthesis and antioxidant activity in Jatropha curcas L. under salt stress

Photosynthesis and antioxidant activity in Jatropha curcas L. under salt stress

Abiotic Stress Diagnosis via Laser Induced Chlorophyll Fluorescence Analysis in Plants for Biofuel

Can the critical temperature for photochemical damage in common bean plants be changed after a drought event?

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