Developmentally related responses of maize catalase genes to salicylic acid.

Guan, Lingqiang; Scandalios, John G.

doi:10.1073/pnas.92.13.5930

Cited by 140 publications

(88 citation statements)

References 29 publications

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“…It was shown that the pre-soaking of pea seeds in SA had a beneficial effect on growth and photosynthesis, and led to a decrease in the oxidative injuries caused by heavy metal stress (Hayat et al 2010). It was also noted that a dramatic inhibition of the germination process was reported above a concentration of 1 mmol in maize (Guan and Scandalios 1995) and Arabidopsis (Rajjou et al 2006) plants. However, a complete understanding of the effect of exogenous SA applied as a foliar spray is still lacking.…”

Section: Discussionmentioning

confidence: 91%

Salicylic acid mediated changes in growth, photosynthesis, nitrogen metabolism and antioxidant defense system in Cicer arietinum L.

Hayat¹,

Hayat²,

Alyemeni³

et al. 2012

PLANT SOIL ENVIRON

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417Salicylic acid (SA) is considered to be a potent plant hormone because of its diverse regulatory roles in plant metabolism (Hayat et al. 2010). SA is an endogenous plant growth regulator of phenolic nature that possesses an aromatic ring with a hydroxyl group or its functional derivative. SA is known to affect growth and bioproductivity in the crops (Hayat et al. 2010). It is also recognized that SA potentially generates a wide array of metabolic responses in plants and also affects photosynthetic parameters and plant water relations (Fariduddin et al. 2003, Hayat et al. 2005. The oxidative damage caused to the plants due to the increased generation of reactive oxygen species under stressful environment could be mitigated by the external application of SA (Hayat et al. 2010). A large body of literature demonstrates the effect of SA seed soaking on plant growth and development. However, very little is known about the effect of SA applied to foliage on plant growth and development. Keeping in view the diverse physiological roles played by SA, the present research was undertaken to improve our understanding of the effect of the various concentrations of SA applied as foliar spray on the growth, photosynthesis, nitrogen fixation and its assimilation in chickpea and to screen for the most effective concentration of SA. MATERIAL AND METHODSPlant material and growth condition. The certified seeds of chickpea (Cicer arietinum L.) cv. Avarodhi were purchased from the National Seed Corporation Ltd., New Delhi, India. The seeds were surface sterilized with 0.01% mercuric chloride solution followed by inoculation with Rhizobium and were sown in earthen pots (0.254 m in diameter) filled with sandy loam soil and farmyard manure (6:1) arranged under a simple randomized block design in the net house of the Botany Department of Aligarh Muslim University, India during the winter season (November-February). The temperature was 15-25°C and irrigation was done on alternate days during the experiment. At the stage of 30 days after sowing (DAS), the foliage of the plants was sprayed uniformly either with double distilled water (control), ethanol (5%), Tween-20 (0.5%) or with different concentrations (10 -4 , 10 -5 or 10 -6 mol/L) of SA dissolved in ethanol to elucidate the effect of exogenous SA on plants. The plants were sampled at 90 DAS to assess various growth and physiological parameters. Tween-20 was used as a surfactant. Both ethanol and Tween 20 were sprayed separately to see whether the effects are solely by SA or by the combination of these.Salicylic acid mediated changes in growth, photosynthesis, nitrogen metabolism and antioxidant defense system in Cicer arietinum L. ABSTRACTThe present study reveals that the foliar application of salicylic acid (SA), irrespective of the concentration used, generated an increase of dry mass per plant, nodule dry mass and leghemoglobin content in chickpea plants. The activity of nitrogenase (E.C 1.18.6.1), nitrate reductase (NR) (E.C. 1.6.6.1), glutamine synthetase (GS) (E.C 6.3.1.2), ...

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Section: Discussionmentioning

confidence: 91%

Salicylic acid mediated changes in growth, photosynthesis, nitrogen metabolism and antioxidant defense system in Cicer arietinum L.

Hayat¹,

Hayat²,

Alyemeni³

et al. 2012

PLANT SOIL ENVIRON

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“…CATs encompass a large family of proteins, which can be found in almost every oxygen-requiring microorganism, animal and plant. [11] There are three members identified in Arabidopsis thaliana [28], Nicotiana tabacum [29] and Zea mays [30]; and two in Hordeum vulgare [31] and Solanum lycopersicum. [32] In the catalase gene family, different members encode distinct catalase enzymes.…”

Section: Numbers Of Variation Sites Type Of Variation Sitesmentioning

confidence: 99%

Cloning and allelic variation of two novel catalase genes (SoCAT-1andSsCAT-1) inSaccharum officinarumL. andSaccharum spontaneumL.

Yang

Yao

et al. 2015

Biotechnology & Biotechnological Equipment

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(2015) Cloning and allelic variation of two novel catalase genes (SoCAT-1 and SsCAT-1) in Saccharumofficinarum L. and Saccharumspontaneum L., Biotechnology & Biotechnological Equipment, 29:3, 431-440, DOI: 10.1080/13102818.2015 Catalases (CAT) play important roles in plant defence mechanisms, stress response, cellular redox balance and aging delay. In order to clone CAT genes in cultivated (Saccharum officinarum L.) and wild (S. spontaneum L.) sugarcane, we designed two pairs of specific primers using a full length cDNA sequence of sorghum CAT gene (XM 002437586.1) as the probe. Two novel full-length sequences of CAT genes (SoCAT-1 in S. officinarum and SsCAT-1 in S. spontaneum) were cloned by nested polymerase chain reaction. Two allelic variants were found at SoCAT-1 (SoCAT-1a and SoCAT-1b, GenBank accession nos. KF864224-25) and SsCAT-1 (SsCAT-1a and SsCAT-1b, GenBank accession nos. KF864226-27) loci. The full lengths of SoCAT-1a, SoCAT-1b, SsCAT-1a and SsCAT-1b were 3816 bp, 3814 bp, 3777 bp and 3812 bp, respectively, and all contained eight exons and seven introns, with a similar gene structure. The length of cDNA for all four genes was 1532 bp, containing 10 bp 5'-untranslated region (UTR) and 43 bp 3'-UTR, and an open reading frame of 1479 bp encoding a polypeptide of 492 amino acids. High homology of DNA (99.0% for SoCAT-1, 98.2% for SsCAT-1) and cDNA (99.3% for SoCAT-1, 99.4% for SsCAT-1) were found. Eleven single nucleotide polymorphisms were found in cDNA SoCAT-1 and nine ones in SsCAT-1, and nine and five amino-acid mutation sites in the predicted proteins, respectively. The predicted proteins encoded by SoCAT-1 and SsCAT-1 showed high homology with CAT in sorghum, rice, corn and other species.

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“…Thus, their results may indicate the interaction of salt stress and light stress. It should also be noted that the plant defense associated hormone salicylic acid (SA) can regulate H 2 O 2 levels and may interact with ABA (Guan and Scandalios 1995;Rai et al 1986). Thus, altered SA levels or signaling could also contribute to the phenotypes of shmt1-1 as well as ggt1-1 and ndpk2.…”

Section: Increased Ros Levels Stimulate Aba-induced Pro Accumulationmentioning

confidence: 99%

Altered ABA, proline and hydrogen peroxide in an Arabidopsis glutamate:glyoxylate aminotransferase mutant

2007

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Plant responses to abiotic stress are determined both by the severity of the stress as well as the metabolic status of the plant. Abscisic acid (ABA) is a key component in integrating these various signals and controlling downstream stress responses. By screening for plants with decreased RD29A:LUC expression, we isolated two alleles, glutamate:glyoxylate transferase1-1 (ggt1-1) and ggt1-2, of a mutant with altered ABA sensitivity. In addition to reduced ABA induction of RD29A, ggt1-1 was altered in ABA and stress regulation of D 1 -pyrroline-5-carboxylate synthase, proline dehydrogenase and 9-cis-epoxycarotenoid dioxygenase 3, which encode enzymes involved in Pro and ABA metabolsim, respectively. ggt1-1 also had altered ABA and Pro contents after stress or ABA treatments while root growth and leaf water loss were relatively unaffected. A light-dependent increase in H 2 O 2 accumulation was observed in ggt1-1 consistent with the previously characterized role of GGT1 in photorespiration. Treatment with exogenous H 2 O 2 , as well as analysis of a mutant in nucleoside diphosphate kinase 2 which also had increased H 2 O 2 content but is not involved in photorespiration or amino acid metabolism, demonstrated that the greater ABA stimulation of Pro accumulation in these mutants was caused by altered H 2 O 2 content as opposed to other metabolic changes. The results suggest that metabolic changes that alter H 2 O 2 levels can affect both ABA accumulation and ABA sensitivity.

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Developmentally related responses of maize catalase genes to salicylic acid.

Abstract: The response of the maize catalase genes

Cited by 140 publications

References 29 publications

Salicylic acid mediated changes in growth, photosynthesis, nitrogen metabolism and antioxidant defense system in Cicer arietinum L.

Salicylic acid mediated changes in growth, photosynthesis, nitrogen metabolism and antioxidant defense system in Cicer arietinum L.

Cloning and allelic variation of two novel catalase genes (SoCAT-1andSsCAT-1) inSaccharum officinarumL. andSaccharum spontaneumL.

Altered ABA, proline and hydrogen peroxide in an Arabidopsis glutamate:glyoxylate aminotransferase mutant

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