Nitric oxide influences glycine betaine content and ascorbate peroxidase activity in maize

The effects of exogenous abscisic acid and two sulfonamide compounds: Sulfacetamide and Sulfasalazine were studied on tolerance of watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai var. lanatus] under drought stress and compared with abscisic acid effects. Eight-week old plants were treated with ABA (10 and 25 mg/L), Sulfacetamide (25, 50 and 100 mg/L) and Sulfasalazine (25,50 and 100 mg/L). Solutions were sprayed daily and sampling was done at 0 h, 48 h, 96 h, 144 h and 48 h after re-watering (recovery phase or 192 h). Treated plants showed relatively greater drought tolerance. This indicates that, Sulfacetamide and Sulfasalazine may improve resistance in watermelon, like ABA, increasing levels of proline, glycine betaine and malondialdehyde and the activity of ascorbate peroxidase. Daily application of Sulfasalazine and Sulfacetamide during drought stress period was effective in increasing watermelon plants tolerance to drought as was ABA.

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Antisense reduction of thylakoidal ascorbate peroxidase in Arabidopsis enhances Paraquat-induced photooxidative stress and Nitric Oxide-induced cell death

Planta ◽

10.1007/s00425-005-1485-9 ◽

2005 ◽

Vol 221 (6) ◽

pp. 757-765 ◽

Cited By ~ 43

Author(s):

Delia Tarantino ◽

Candida Vannini ◽

Marcella Bracale ◽

Manuela Campa ◽

Carlo Soave ◽

...

Keyword(s):

Nitric Oxide ◽

Cell Death ◽

Ascorbate Peroxidase ◽

Photooxidative Stress

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Exogenous glycine betaine modulates ascorbate peroxidase and catalase activities and prevent lipid peroxidation in mild water-stressed Carapa guianensis plants

Photosynthetica ◽

10.1007/s11099-013-0004-7 ◽

2013 ◽

Vol 51 (1) ◽

pp. 102-108 ◽

Cited By ~ 22

Author(s):

F. J. R. Cruz ◽

G. L. S. Castro ◽

D. D. Junior ◽

R. A. Festucci-Buselli ◽

H. A. Pinheiro

Keyword(s):

Lipid Peroxidation ◽

Ascorbate Peroxidase ◽

Glycine Betaine ◽

Carapa Guianensis

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Relationship between Activities of Enzymes for the Removal of O2·- and H2O2 and Nitrogenase in Root Nodules of Phaseolus vulgaris L.

Zeitschrift für Naturforschung C ◽

10.1515/znc-1995-7-812 ◽

1995 ◽

Vol 50 (7-8) ◽

pp. 543-551

Author(s):

Bernhard Epping ◽

Alexander P. Hansen ◽

Peter Martin

Keyword(s):

Superoxide Dismutase ◽

Phaseolus Vulgaris ◽

Ascorbate Peroxidase ◽

Peroxidase Activity ◽

Rhizobium Leguminosarum ◽

Nitrogenase Activity ◽

Root Nodules ◽

Hypersensitive Reaction ◽

Guaiacol Peroxidase ◽

Bacterial Strains

Abstract Nodules of Rhizobium leguminosarum bv. phaseoli in symbiosis with Phaseolus vulgaris were compared with regard to their nitrogenase activity and activities of enzymes involved in the removal of O2·- and H2O2 as well as total ascorbate content. Activities of catalase (EC 1.11.1.6), ascorbate peroxidase (EC 1.11.1.11), and total ascorbate content were consistently higher in nodules inhabited by bacterial strains with higher nitrogenase activity. Values for superoxide dismutase (EC 1.15.11), and guaiacol peroxidase activity did not differ for the bacterial strains compared. On the other hand, when different plant cultivars were inoculated with the same bacterial strain, high nitrogenase activity did not correlate with a higher activity of the oxygen scavenging enzyms or a higher content of total ascorbate. In this case, values for guaiacol peroxidase activity were greatly enhanced in nodules with lower nitrogen ase activity. This may be part of a hypersensitive reaction of the plant cultivar against the bacterial symbiotic partner. Inhibition of catalase activity in the nodules by addition of triazole to the nutrient solution did not alter nitrogenase activity within the first nine hours after addition. It can be concluded that the activity of catalase, ascorbate peroxidase, and superoxide dismutase is not generally coupled to nitrogenase activity in root nodules of P. vulgaris.

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Does the rate of German chamomile growth and development influence the response of plants to soil drought?

Biologia ◽

10.2478/s11756-010-0084-9 ◽

2010 ◽

Vol 65 (5) ◽

Cited By ~ 4

Author(s):

Renata Bączek-Kwinta ◽

Agnieszka Adamska ◽

Katarzyna Seidler-Łożykowska ◽

Krzysztof Tokarz

Keyword(s):

Gas Exchange ◽

Water Content ◽

Ascorbate Peroxidase ◽

Peroxidase Activity ◽

Leaf Growth ◽

Soil Drought ◽

Vegetative Development ◽

Recovery Stage ◽

Leaf Formation ◽

Long Shoots

AbstractThe response of the wild type (WT) and a strain C6/2 of German chamomile to 7-d soil drought and subsequent 7-day rehydration was studied. Shoot and leaf growth, vegetative development, water and protein contents, ascorbate peroxidase activity and gas exchange were compared. At the stress stage, water content of WT plants was slightly influenced and the effect was ceased after rehydration. Also the decrease in gas exchange was temporary. New leaves were formed, although their area was diminished. On the contrary, leaves of C6/2 plants were more desiccated and the durable decrease in water content was accompanied by the impairment in gas exchange also at the recovery stage (20–40% loss when compared to the control). At both stages of the experiment the growth of the long shoots of this genotype was drastically decreased, as well as leaf formation. Ascorbate peroxidase activity was increased by drought in leaves of both genotypes, but the pattern of changes in WT plants reflected the enhancement of metabolism resulting from proper water content and gas exchange at the recovery stage. Different pattern of changes in the protein content during drought was also noticed: a slight increase in WT, while the decrease by ¼ in C6/2 leaves. The response of WT plants to desiccation and rewatering was found to be more elastic than that of C6/2.

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Induction of ascorbate peroxidase activity in stressed pine (Pinus sylvestris L.) needles: a putative role for ethylene

Plant Science ◽

10.1016/0168-9452(95)04262-8 ◽

1995 ◽

Vol 112 (2) ◽

pp. 167-173 ◽

Cited By ~ 16

Author(s):

Gederts Ievinsh ◽

Aija Valcina ◽

Dace Ozola

Keyword(s):

Pinus Sylvestris ◽

Ascorbate Peroxidase ◽

Peroxidase Activity ◽

Putative Role

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Abiotic stresses alter expression of S-Adenosylmethionine synthetase gene, polyamines and antioxidant activity in pigeon pea (Cajanus cajan L.)

Legume Research - An International Journal ◽

10.18805/lr.v39i6.6640 ◽

2016 ◽

Vol 39 (6) ◽

Cited By ~ 2

Author(s):

Mahesh K. Mahatma ◽

Nidhi Radadiya ◽

Vipul B. Parekh ◽

Bhavika Dobariya ◽

Lalit Mahatma

Keyword(s):

Heavy Metal ◽

Antioxidative Enzymes ◽

Ascorbate Peroxidase ◽

Glycine Betaine ◽

Abiotic Stresses ◽

Cajanus Cajan ◽

Cadmium Stress ◽

Pigeon Pea ◽

Leaves And Roots ◽

Adenosylmethionine Synthetase

Expression of S-Adenosylmethionine synthetase (SAMS) gene in pigeon pea (Cajanus cajan L.) was analyzed by qRT PCR during abiotic stresses viz., drought, heavy metal (CdCl2) and cold. Maximum expression of SAMS gene in the leaves were observed at 3 days after drought stress with 15% PEG. Conversely, its expression was not detected in leaves and roots at cadmium stress but transcripts were down regulated as compared to the control. After 6 days of stress expression of SAMS gene was increased in leaves and roots as compared to the control but it was lower than its expression at 3 days after stress. The activities of antioxidative enzymes like glutathione reductase, glutathione-s-transferase, ascorbate peroxidase and metabolite constituents like polyamines and glycine betaine were also analyzed. The activities of antioxidative enzymes and concentration of glycine betaine showed remarkable increase in response to all stresses, except ascorbate peroxidase in heavy metal stress.

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