Complex interactive effects of drought and ozone stress on the antioxidant defence systems of two wheat cultivars

Herbinger, K.; Tausz, Michael; Wonisch, Astrid; Soja, Gerhard; Sorger, Alexandra; Grill, D.

doi:10.1016/s0981-9428(02)01410-9

Cited by 182 publications

(108 citation statements)

References 25 publications

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“…T 3 (eight days' irrigation interval) revealed poor performance with respect to total chlorophyll (Fig 2g). Under water stress, the lower amount of total chlorophyll suggests a dropped capacity for light harvesting thus effecting photosynthesis (Herbinger et al, 2002). In sunflower varieties, drought stress caused the reduction in the chlorophyll a, b and total chlorophyll content (Manivannan et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

Screening of marigold (Tagetes erecta L.) cultivars for drought stress based on vegetative and physiological characteristics

Younis

Riaz

Qasim

et al. 2018

IJFAAS

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Drought tolerance is an important genotypic character to be exploited for the plant cultivar selection under water deficit conditions. In the recent study, we examined the response of two marigold cultivars (Inca and Bonanza) under different regimes of drought stress. The aim was to determine the best performing cultivar under water/drought stress. Three irrigation treatments include; 4 days (T 1 ), 6 days (T 2 ) and 8 days (T 3 ) in comparison to control 1 day (T 0 ) interval were imposed. Response characters under study were morphological, physiological and anatomical. Complete Randomized Design (CRD) with four replications in two factorial arrangements was followed for experiment layout. The results revealed that increasing water stress adversely affect plant height, in both cultivars. Both cultivars showed a decreasing trend to the number of flowers under water stress. Total chlorophyll contents including a, b were also showed reduction under prolonged drought treatment in both cultivars from (2.7 mg g -1 FW) to (1 mg g -1 FW). Overall, the performance of cultivar (cv.) Inca was satisfactory under water stress regimes. These results are helpful for selecting drought tolerant marigold cultivars in water scarce areas.

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Section: Resultsmentioning

confidence: 99%

Screening of marigold (Tagetes erecta L.) cultivars for drought stress based on vegetative and physiological characteristics

Younis

Riaz

Qasim

et al. 2018

IJFAAS

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“…The decline in CAT activity is regarded as a general response to many stresses (Herbinger et al 2002;Bakalova et al 2004;Jung 2004;Guo et al 2006;Pan et al 2006;Gunes et al 2008;Liu et al 2008). The reduction of CAT activity is supposedly due to the inhibition of enzyme synthesis or change in the assembly of enzyme subunits under stress conditions.…”

Section: Discussionmentioning

confidence: 99%

Antioxidant enzymes changes in response to drought stress in ten cultivars of oilseed rape (Brassica napus L.)

Abedi¹,

Pakniyat²

2010

Czech J. Genet. Plant Breed.

278

116

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Abstract:The study was undertaken to identify the responses of antioxidant enzyme activities and their isozyme patterns in seedlings of 10 oilseed rape (Brassica napus L.) cultivars under drought stress conditions. Plants were grown under three irrigation regimes (FC; field capacity, 60% FC and 30% FC) in a greenhouse. Drought stress preferentially enhanced the activities of superoxide dismutase (SOD) and guaiacol peroxidase (POD) whereas it decreased catalase (CAT) activity. Licord with the highest level of enzyme activity under both optimum and limited irrigation regimes is reported as the most tolerant cultivar. Whereas Hyola 308 and Okapy, having the lowest enzymes activities, are mentioned as cultivars sensitive to drought stress. The native polyacrylamide gel electrophoresis (PAGE) analysis detected eight SOD isozymes. Oilseed rape leaves contained three isoforms of Mn-SOD and five isoforms of Cu/Zn-SOD. The expression of Mn-SOD was preferentially enhanced by drought stress. Five POD isoforms were detected in oilseed rape leaves. The intensities of POD-4 and -5 were enhanced under drought stress. According to the results, the appearance of new isozyme bands under drought stress conditions may be used as a biochemical marker to differentiate drought tolerant cultivars under drought stress.

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“…No significant change in dark-adapted F v /F m indicates that no photodamage to PSII reaction centers or the development of slowly relaxing excitation energy quenching had been induced by photodynamic stress. 34,35) …”

Section: Effect Of Protox Activity On Oxyfluorfen-induced Photodynamimentioning

confidence: 99%

Level of protoporphyrinogen oxidase activity tightly correlates with photodynamic and defense responses in oxyfluorfen-treated transgenic rice

Jung

2011

J. Pestic. Sci.

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Complex interactive effects of drought and ozone stress on the antioxidant defence systems of two wheat cultivars

Cited by 182 publications

References 25 publications

Screening of marigold (Tagetes erecta L.) cultivars for drought stress based on vegetative and physiological characteristics

Screening of marigold (Tagetes erecta L.) cultivars for drought stress based on vegetative and physiological characteristics

Antioxidant enzymes changes in response to drought stress in ten cultivars of oilseed rape (Brassica napus L.)

Level of protoporphyrinogen oxidase activity tightly correlates with photodynamic and defense responses in oxyfluorfen-treated transgenic rice

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