Low-temperature effect on enzyme activities involved in sucrose–starch partitioning in salt-stressed and salt-acclimated cotyledons of quinoa (Chenopodium quinoa Willd.) seedlings

Rosa, Mariana; Hilal, Mirna; González, Juan Antonio Suarez; Prado, Fernando Eduardo

doi:10.1016/j.plaphy.2008.12.001

Cited by 141 publications

(92 citation statements)

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“…contents in leaves of S. indicum L. grown with and without calcium (50 mM CaCl 2 ). Data presented are the means ± SE (n = 5), LSD at 0.05 (one-way ANOVA by Changes in the sugar fraction due to stress involve alterations in carbon assimilation and the partitioning between source and sink tissues (Gupta and Kaur 2005;Rosa et al 2009). S. indicum exposed to cadmium stress exhibited enhancements in the antioxidant enzyme activities analyzed, and calcium application caused a further increase in their activities, which suggested a protective role of calcium in mitigating oxidative stress.…”

Section: Discussionmentioning

confidence: 99%

Calcium application enhances growth and alleviates the damaging effects induced by Cd stress in sesame (Sesamum indicumL.)

Abd_Allah

Wirth

Egamberdieva

2017

Journal of Plant Interactions

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In this study, the effects of calcium (Ca 2+ ) application on acquired systemic tolerance mechanism to cadmium (Cd) stress in sesame (Sesamum indicum L.) were studied. The Cd stress reduced the root and shoot growth of sesame, and plant contents of photosynthetic pigments; however, the application of Ca 2+ improved these parameters under Cd stress condition. The hydrogen peroxide, malondialdehyde and soluble sugar contents were higher under Cd stress, and were reduced by Ca 2+ treatment. The antioxidant enzyme activities in the leaves of sesame, superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) were higher under Cd stress, whereas reduced concentration was observed in Ca 2+ -treated plants. Cd stress increased the contents of diacylglycerol and sterol ester; however Ca 2+ treatment resulted in a significant increase in phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol and phosphatidylserine. Our results indicated that application of calcium enables sesame plants to withstand the deleterious impact of cadmium through upregulating acquired systemic tolerance system as lipid fractions (galactolipids, phospholipids, neutral lipids), antioxidant enzymes (SOD, POD, CAT, APX, GR) hence protect membrane functions. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 99%

Calcium application enhances growth and alleviates the damaging effects induced by Cd stress in sesame (Sesamum indicumL.)

Abd_Allah

Wirth

Egamberdieva

2017

Journal of Plant Interactions

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“…Volgogradskij (Khelil et al 2007), wheat cv. Ghods (Kafi et al 2003), cashew nut (Voigt et al 2009), cowpea (Praxedes et al 2011) and quinoa (Rosa et al 2009). From this evidence, it can be seen that the photosynthetic abilities in saltsensitive rice dropped significantly when seedlings were subjected to salt stress.…”

Section: Expression Levels Of Starch Involving Genes Under Salt Stressmentioning

confidence: 94%

“…In quinoa (Chenopodium quinoa Willd. ), AGP gene in the cotyledons (carbohydrate sink organs) was generally down-regulated, relating to low starch content, leading to increased soluble sugar in plants subjected to 200 mM NaCl (Rosa et al 2009). …”

Section: Expression Levels Of Starch Involving Genes Under Salt Stressmentioning

confidence: 99%

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Transcriptional regulations of the genes of starch metabolism and physiological changes in response to salt stress rice (Oryza sativa L.) seedlings

Theerawitaya

Boriboonkaset

Cha–um

et al. 2012

Physiol Mol Biol Plants

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The aim of this investigation was to compare the transcriptional expression of starch metabolism, involving genes and physiological characters, in seedlings of two contrasting salt-tolerant rice genotypes, in response to saltstress. The soluble sugar content in rice seedlings of both salt-tolerant and salt-sensitive genotypes was enriched, relating to starch degradation, in plants subjected to 200 mM NaCl. In the salt-tolerant cultivar Pokkali, a major source of carbon may be that derived from the photosynthetic system and starch degradation. In starch degradation, only Pho and PWD genes in Pokkali were upregulated in plants subjected to salt stress. In contrast, the photosynthetic abilities of IR29 salt-susceptible cultivar dropped significantly, relating to growth reduction. The major source of carbohydrate in salt-stressed seedlings of the IR29 cultivar may be gained from starch metabolism, regulated by ADP-glucose pyrophosphorylase (AGP), starch synthase (SS), starch branching enzyme (SBE), starch debranching enzyme (ISA), glucan-water dikinase (GWD), dispropotionating enzyme (DPE), phospho glucan-water dikinase (PWD) and starch phosphorylase (Pho). Also, the major route of soluble sugar in salt-stressed Pokkali seedlings was derived from photosynthesis and starch metabolism. This was identified as novel information in the present study.

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“…The area was defined as length x width (Rosa et al, 2009). This value, although not the exact area of the leaf, was proportional to its area.…”

Section: Growth Measurementsmentioning

confidence: 99%

Effects of low temperature and drought on the physiological and growth changes in oil palm seedlings

Cao¹,

Sun²,

Shao³

et al. 2011

Afr. J. Biotechnol.

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Water deficiency and low temperature are two important ecological factors which affect the distribution and cultivation of oil palm. To find out how oil palm adapts to the environmental conditions, the dynamics of a series of important physiological components derived from the leaves of potted oil palm seedlings under drought stress (DS) (water with holding) and low temperature stress (LTS) (10°C) were studied. The results showed that low temperature and water stress inhibited the growth of oil palm seedlings. The relative conductivity, injury index, malondialdehyde (MDA) and proline content in the leaves increased to different degrees with the extension of low temperature and drought stress. Superoxide dismutase (SOD) and peroxidase (POD) activities increased and then decreased gradually with the duration of treatment time. The variations of the earlier mentioned parameters except proline content under low temperature stress were greater than that under drought stress. Thus, oil palm possibly showed different response mechanisms under low temperature and drought stress by mediations of these substances, in order to increase plant defense capability. These data provided the information that was utilized to initiate the breeding programme used to improve drought and cold tolerance in oil palm.

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Low-temperature effect on enzyme activities involved in sucrose–starch partitioning in salt-stressed and salt-acclimated cotyledons of quinoa (Chenopodium quinoa Willd.) seedlings

Cited by 141 publications

References 50 publications

Calcium application enhances growth and alleviates the damaging effects induced by Cd stress in sesame (Sesamum indicumL.)

Calcium application enhances growth and alleviates the damaging effects induced by Cd stress in sesame (Sesamum indicumL.)

Transcriptional regulations of the genes of starch metabolism and physiological changes in response to salt stress rice (Oryza sativa L.) seedlings

Effects of low temperature and drought on the physiological and growth changes in oil palm seedlings

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