Amelioration of NaCl Stress by Arginine in Rice Seedlings: Changes in Endogenous Polyamines

Kakkar, R. K.; Bhaduri, S. K.; Rai, V.K.; Kumar, S. Vinod

doi:10.1023/a:1026715032115

Cited by 38 publications

(12 citation statements)

References 27 publications

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“…Therefore, it is suggested that not only a single metabolite, but an effective regulation and signalling of complex mechanisms was the main key reason to tolerant characters such as in barley and wheat [ 6 , 48 , 49 ]. However for ornithine, reports suggest that accumulation of ornithine can deduce more tolerant character for plants under abiotic stress [ 50 , 51 ].…”

Section: Resultsmentioning

confidence: 99%

Susceptibility and tolerance of rice crop to salt threat: Physiological and metabolic inspections

et al. 2018

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Salinity threat is estimated to reduce global rice production by 50%. Comprehensive analysis of the physiological and metabolite changes in rice plants from salinity stress (i.e. tolerant versus susceptible plants) is important to combat higher salinity conditions. In this study, we screened a total of 92 genotypes and selected the most salinity tolerant line (SS1-14) and most susceptible line (SS2-18) to conduct comparative physiological and metabolome inspections. We demonstrated that the tolerant line managed to maintain their water and chlorophyll content with lower incidence of sodium ion accumulation. We also examined the antioxidant activities of these lines: production of ascorbate peroxidase (APX) and catalase (CAT) were significantly higher in the sensitive line while superoxide dismutase (SOD) was higher in the tolerant line. Partial least squares discriminant analysis (PLS-DA) score plots show significantly different response for both lines after the exposure to salinity stress. In the tolerant line, there was an upregulation of non-polar metabolites and production of sucrose, GABA and acetic acid, suggesting an important role in salinity adaptation. In contrast, glutamine and putrescine were noticeably high in the susceptible rice. Coordination of different strategies in tolerant and susceptible lines show that they responded differently after exposure to salt stress. These findings can assist crop development in terms of developing tolerance mechanisms for rice crops.

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Section: Resultsmentioning

confidence: 99%

Susceptibility and tolerance of rice crop to salt threat: Physiological and metabolic inspections

et al. 2018

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“…Since polyamine concentration increase significantly upon exposure to saline stress, it has been proposed that polyamines could be a protective mechanism of plants against saline stress, therefore conferring tolerance against stress in some cases (Katiyar and Dubey 1990a;Bouchereau et al 1999;Reggiani et al 1994;Iqbal and Ashraf 2005). However, in other plant species polyamine concentration decreases as a consequence of saline stress (Kakkar et al 2000), and may even show increases and decreases in the same species, i.e. rice (Basu et al 1988;Krishnamurthy and Bhagwat 1989;Lin and Kao 1995) as is the case in putrescine (Put) concentration under saline conditions.…”

Section: Introductionmentioning

confidence: 99%

Changes in free polyamine concentration induced by salt stress in seedlings of different species

et al. 2008

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Growth rate, mineral composition and changes in polyamine concentration induced in response to salinity were studied in six crop species: spinach, lettuce, bean, pepper, beetroot and tomato. Salinity decreased growth rate, but sensitivity differed amongst the species: pepper being the most sensitive, followed by bean, tomato, lettuce and spinach, with beetroot being the most tolerant. The increase of Na + and total cation with salinity in shoots was the highest in spinach and beetroot, the most tolerant species, while in pepper it was the lowest. Changes in putrescine (Put) concentration in shoots were related to salinity tolerance (increased in the most sensitive), while changes in spermidine (Spd; decreases) and spermine (Spm; increases) were similar with most species, except for pepper in which salinity strongly increased Put, Spd and Spm. Therefore, total polyamine concentration increased in pepper shoot, while it decreased in the other species. Thus, results show that Put accumulation was a consequence of salt stress in the most sensitive species, while salt tolerant species (beetroot) showed little change in polyamine concentration, and higher concentration in both Na + and total cations. The role of polyamines or cation increased concentration after saline treatment in species with different salt tolerance is discussed.

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“…They have been classified as a new group of growth substances and a type of plant growth regulator or hormonal second messenger (Galston and Kaur‐Sawhney 1990, Lee and Chu 1992, Tiburcio et al 1993, Gaspar et al 1997, Scoccianti et al 2000, Tassoni et al 2000). Extensive studies support the fact that they modulate a variety of physiological processes, such as stabilization of cell membranes (Schubert et al 1983, Roberts et al 1986, Kaur‐Sawhney and Applewhite 1993), stress response (Flores 1990, Aurisiano et al 1993, Das et al 1995, Galston et al 1997, Kakkar et al 2000), and senescence (Slocum et al 1984, Evans and Malmberg 1989, Rey et al 1994, Del Duca et al 2000). Their important role at the cellular level has justified extensive studies to clarify, at the molecular level, their function as modulators of cell viability or stimuli for cell proliferation (Igarashi and Kashiwagi 2000).…”

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INFLUENCE OF POLYAMINES ON THE SPORULATION OF GRATELOUPIA (HALYMENIACEAE, RHODOPHYTA)¹

Sacramento

García‐Jiménez

Alcázar

et al. 2004

Journal of Phycology

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Polyamines (PAs) such as putrescine (PUT), spermidine (SPD), and spermine (SPM) are ubiquitous aliphatic amines involved in widely varying physiological behavior, but particularly they are actively involved in cell growth, division, and differentiation during reproductive events in plants. The contents of PUT, SPD, and SPM in infertile and fertile thalli of the red macroalga Grateloupia sp. were compared, and the results revealed a significant decrease in quantity from infertile to fertile status. At the enzymatic level, L-ornithine decarboxylase (ODC) was mainly detected, and L-arginine decarboxylase activity was not diminished by the inhibition of ODC. The maximum enzymatic activities, within the range of activities observed, correlated with the lower levels of polyamines in fertile thalli. In culture, SPM promoted the maturation of cystocarps to the eventual liberation of spores from aseptic fertile explants. PAs accumulated in cultivated explants as compared with noncultivated, but exogenous SPM addition further increased the endogenous SPM. The addition of berenyl, cordycepin, cyclohexylamine, dicyclohexylamine, and aurintricarboxylic acid blocked the synthesis in culture at the level of PUT, and partially at SPD and SPM synthesis, but the addition of SPM restored the levels of SPD and SPM as SPM accumulated, and they appeared to interconvert each other. The results obtained suggest that the culture in presence of SPM restored a deficient SPM situation in fertile explants, thus promoting sporulation.

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Amelioration of NaCl Stress by Arginine in Rice Seedlings: Changes in Endogenous Polyamines

Cited by 38 publications

References 27 publications

Susceptibility and tolerance of rice crop to salt threat: Physiological and metabolic inspections

Susceptibility and tolerance of rice crop to salt threat: Physiological and metabolic inspections

Changes in free polyamine concentration induced by salt stress in seedlings of different species

INFLUENCE OF POLYAMINES ON THE SPORULATION OF GRATELOUPIA (HALYMENIACEAE, RHODOPHYTA)¹

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Amelioration of NaCl Stress by Arginine in Rice Seedlings: Changes in Endogenous Polyamines

Cited by 38 publications

References 27 publications

Susceptibility and tolerance of rice crop to salt threat: Physiological and metabolic inspections

Susceptibility and tolerance of rice crop to salt threat: Physiological and metabolic inspections

Changes in free polyamine concentration induced by salt stress in seedlings of different species

INFLUENCE OF POLYAMINES ON THE SPORULATION OF GRATELOUPIA (HALYMENIACEAE, RHODOPHYTA)1

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INFLUENCE OF POLYAMINES ON THE SPORULATION OF GRATELOUPIA (HALYMENIACEAE, RHODOPHYTA)¹