The changes induced in the physiological, biochemical and anatomical characteristics of Vicia faba by the exogenous application of proline under seawater stress

Dawood, Mona; Taie, Hanan A.A.; Nassar, Rania M. A.; Abdelhamid, Magdi T.; Schmidhalter, Urs

doi:10.1016/j.sajb.2014.03.002

Cited by 116 publications

(75 citation statements)

References 49 publications

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“…Greater accumulation of phenolics in plants subjected to stressful conditions is ascribed to the upregulation of the enzymes involved in their synthesis (Wada et al 2014). In our study, increased phenols content in stressed plants corroborate with the findings of Mehr et al (2012) for A. graveolens L., Tomar and Agarwal (2013) for wheat and Dawood et al (2014) for Vicia faba. In confirmation with our results, Nell et al (2009) also observed increased phenols content in AMF-inoculated Salvia officinalis L. plants as compared to uninoculated counterparts.…”

Section: Discussionsupporting

confidence: 93%

Arbuscular mycorrhizal fungi enhances salinity tolerance ofPanicum turgidumForssk by altering photosynthetic and antioxidant pathways

Hashem

Abd_Allah

Alqarawi

et al. 2015

Journal of Plant Interactions

137

101

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Present experiments were conducted to assess the response of Panicum turgidum to salinity and possible role of arbuscular mycorrhizal fungi (AMF) in enhancing the salt tolerance. The activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), glutathione reductase (GR) and compatible solutes were increased by salt stress and were further enhanced by AMF inoculation. Hydrogen peroxide and malonaldehyde content increased in salt-stressed plants while a reduction was observed due to AMF inoculation. Salt-stressed plants showed higher activities of pyruvate orthophosphate dikinase (PPDK), phosphoenolpyruvate carboxylase (PEPC) and malate dehydrogenase as compared to control and AMF-inoculated plants. Salt stress caused significant decrease in phosphorous, potassium and calcium uptake but an increase in sodium uptake was observed. AMF alleviate salinityinduced negative impact on the plant growth and nutrient uptake by reducing the oxidative damage through strengthening of the antioxidant system.

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Section: Discussionsupporting

confidence: 93%

Arbuscular mycorrhizal fungi enhances salinity tolerance ofPanicum turgidumForssk by altering photosynthetic and antioxidant pathways

Hashem

Abd_Allah

Alqarawi

et al. 2015

Journal of Plant Interactions

137

101

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“…Increased APX, SOD and GR activities in tolerant plants could reduce the amount of damage caused by various stress conditions (Dawood et al, 2014;Sun et al, 2007;Yin et al, 2005). For the amaranth species tested, the activities of GR, APX and SOD are affected differently during water deficit, with respect to the timing and extend of response.…”

Section: Antioxidative Enzyme Activitymentioning

confidence: 99%

“…Plants able to tolerate drought must therefore be able to increase their defense mechanisms under conditions of severe water deficit. Water stress causes oxidative injury, and the ability to increase the levels of antioxidative capacity or increased levels of antioxidants during water stress can limit membrane damage and enzyme activity can be an important measurement of drought tolerance (Dawood et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The role of proline during stress includes functioning as a compatible osmolite/osmoregulation (Abdalla and El-Khoshiban, 2007;Huang et al, 2000), preventing hyperosmotic stress (Kishor et al, 1995) by balancing concentration differences between the cytoplasm and the central vacuole of the plant cells, is involved in stabilizing proteins/ enzymes and enzyme activities (Gill and Tuteja, 2010), stabilizes subcellular structures (membranes and proteins) (Ashraf and Foolad, 2007;Efeoghu et al, 2009), and is involved in the conservation of nitrogen and energy for a post-stressed period (Hare et al, 1998). Proline is also known to induce expression stress responsive genes, such as drought and salt stress (Chinnusamy et al, 2005;Dawood et al, 2014;Zhu et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

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Antioxidant enzyme activity, proline accumulation, leaf area and cell membrane stability in water stressed Amaranthus leaves

Slabbert

Kruger

2014

South African Journal of Botany

103

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a b s t r a c tEdited by J van Staden Keywords: A. hybridus A. hypochondriacus Antioxidative enzymes A. tricolor Cell membrane stability Leaf area Leaf water status Metabolic response Osmoregulation Proline Relative water content Water stressTraditional crops are extremely important for food production in low income, food-deficit countries (LIFDCs) where they continue to be maintained by socio-cultural preferences and traditional uses. Significant potential exists to improve these crops, one of which is to select for improved productivity during moisture stress conditions. Germplasm of Amaranthus tricolor, Amaranthus hypochondriacus and Amaranthus hybridus were subjected to various screening methods to measure metabolic and physiological changes during water stress. The activities of enzymes involved in the oxygen-scavenging system during abiotic stress conditions (superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione reductase (GR)), free proline production, leaf area (LA), cell membrane stability (CMS), leaf water potential (LWP) and relative water content (RWC) were measured in these three amaranth species during induced water stress. This study showed significant differences in metabolic responses during water deficit of the three species tested. Moisture stress and a decrease in RWC and LWP were first experienced in A. hybridus and A. hypochondriacus, followed by A. tricolor. There was an indirect correlation between leaf water status (RWC and LWP), enzyme activity, proline production and leaf area. The combined effect of GR, APX and SOD could ensure higher levels of regulation of the toxic effect of H 2 O 2 which could be associated with drought tolerance in Amaranthus. Distinct differences in onset of proline accumulation and the amount of accumulated in leaves upon induced water stress was noticed for the three amaranth species tested. Proline accumulation during water stress conditions in amaranth seems to be indirect and could possibly have a protective role apart from osmoregulation during stress conditions. This contention is supported by the decrease in leaf area and high cell membrane stability for two of the species tested. This study forms part of a project aimed at the development of improved traditional crops to contribute to food production and quality for subsistence farmers in areas with low precipitation or variable rainfall patterns.

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“…Studies have suggested that, foliar application of antioxidants to plants can be used as a means of controlling salinity stress Dawood et al, 2014;Rady et al, 2015). Proline is one of the most important amino acids produced and accumulated in the plant in response to salt stress (Marin et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Proline enhances growth, productivity and anatomy of two varieties of Lupinus termis L. grown under salt stress

Rady

Taha

Mahdi

2016

South African Journal of Botany

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a b s t r a c tTo assess the ameliorative effects of exogenous proline application on salinity stress, 20, 35 and 50-day old seedlings of two lupine varieties (i.e., Giza 1 and Giza 2) grown on a saline soil (i.e., 6.35 -6.45 dS m -1 ) were sprayed with 0 (tap water as a control), 3, 6 or 9 mM proline. This study was conducted in two seasons of 2012/2013 and 2013/2014. All proline levels caused a significant increase in growth characteristics, physiological attributes, yields and anatomical traits of both lupine varieties compared to the control. Among proline concentrations, 6 mM proline led to the highest levels of plant growth, leaf photosynthetic pigments, total soluble sugars, endogenous proline and yields, and represented the best anatomical characteristics of the two lupine varieties. In contrast, the 6 mM proline level caused the lowest levels of alkaloids under salinity stress. Giza 2 variety was found to generate better growth and yield, thus reflecting more salt-tolerance than Giza 1 variety. This study highlights the potential ameliorative effects of proline in mitigating the adverse effects of salinity stress in growing plants. To enhance lupine plant growth and productivity in saline soils, we recommend the use of proline as a commercial formulation.

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The changes induced in the physiological, biochemical and anatomical characteristics of Vicia faba by the exogenous application of proline under seawater stress

Cited by 116 publications

References 49 publications

Arbuscular mycorrhizal fungi enhances salinity tolerance ofPanicum turgidumForssk by altering photosynthetic and antioxidant pathways

Arbuscular mycorrhizal fungi enhances salinity tolerance ofPanicum turgidumForssk by altering photosynthetic and antioxidant pathways

Antioxidant enzyme activity, proline accumulation, leaf area and cell membrane stability in water stressed Amaranthus leaves

Proline enhances growth, productivity and anatomy of two varieties of Lupinus termis L. grown under salt stress

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