Study of the root antioxidative system of tomatoes and eggplants under waterlogged conditions

Lin, Kuan–Hung; Weng, Chia-Cheng; Lo, Hsiao-Feng; Chen, Jen-Tzu

doi:10.1016/j.plantsci.2004.04.004

Cited by 112 publications

(85 citation statements)

References 38 publications

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“…As found, flooding stress tolerant genotype treated with PBZ @ 10ppm ST + 10ppm FS had greater ability to minimize H 2 O 2 accumulation through enhanced antioxidant enzymes activity (APX and SOD) than the susceptible genotype. During O 2 deprivation production of H 2 O 2 that plays an important role in flooding tolerance in brinjal and tomato plants (Blokhina et al 2001;Lin et al 2004) strengthens the present findings.…”

Section: Resultssupporting

confidence: 85%

“…In the same way, APX activity in maize leaves and roots was greater in flood tolerant than in flood sensitive maize genotype (Tang et al 2010). Besides these, APX activity plays a vital role in maintaining the balance between generation of free radicals and elimination by converting H 2 O 2 into H 2 O along with regeneration of NADP + (Lin et al 2004). T0 T1 T2 T3 T4 T5 T6 T7 T0 T1 T2 T3 T4 T5 T6 T7 Superoxide dismutase (SOD) is considered as first line of defense against oxidative damage through scavenging of reactive oxygen species (ROS).…”

Section: Resultsmentioning

confidence: 88%

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Mitigating effects of paclobutrazol on flooding stress damage by shifting biochemical and antioxidant defense mechanisms in mungbean (Vigna radiata L.) at pre-flowering stage

Yadav

Hemantaranjan

2017

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Flooding stress is one of the major obstacles which hamper plant growth and development in various ways. Two screened mungbean genotypes, HUM-16 (flooding tolerant) and HUM-12 (flooding susceptible), were selected to evaluate the effect of paclobutrazol @10ppm and 25ppm along with its combinations through pre-seed soaking and foliar spray at preflowering stage. The flooding stress shock was imposed for seven days at pre-flowering stage. ) in both tolerant and susceptible genotype, respectively, while it minimized the production of MDA (18.30% and 49.00%) and H 2 O 2 (19.05% and 25.06%) in both tolerant and susceptible genotype, respectively, under flooding stress as compared to control. Paclobutrazol treatments, as evident, minimized the flooding stress damage in tolerant genotype as compared to susceptible genotype by enhancing chlorophyll, soluble sugar and antioxidant enzymes activity (APX and SOD) and by reducing the generation of H 2 O 2 and MDA contents under flooding stress.

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Section: Resultssupporting

confidence: 85%

Section: Resultsmentioning

confidence: 88%

Mitigating effects of paclobutrazol on flooding stress damage by shifting biochemical and antioxidant defense mechanisms in mungbean (Vigna radiata L.) at pre-flowering stage

Yadav

Hemantaranjan

2017

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“…1). Lin et al (2004) reported that tAsA levels in tomato roots were around 0.45 μM/g FW, which is comparable to the tASA concentration of the present study (0.7 μM/g FW), while in onion roots up to 0.19 μM/g FW were found (Cordoba-Pedregosa et al 2003). Interestingly, despite low tASA levels, APX and DHAR activities in root tips were relatively high (Fig.…”

Section: Asa Metabolism In Root Tipssupporting

confidence: 87%

“…2), which could point to a higher turnover between oxidized and reduced forms of AsA. Comparable results were obtained by CordobaPedregosa et al (2003) and Lin et al (2004) for tomato and onion roots respectively. AsA level is also related to growth of root architecture and root reaction to gravity.…”

Section: Asa Metabolism In Root Tipssupporting

confidence: 57%

Ascorbate metabolism in vegetative and reproductive organs of "cherry" tomato

Tsaniklidis

Nikoloudakis

Delis

et al. 2014

Hort. Sci. (Prague)

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Tsaniklidis G., Nikoloudakis N., Delis C., Aivalakis G., 2014. Ascorbate metabolism in vegetative and reproductive organs of "cherry" tomato. Hort. Sci. (Prague), 41: 114-121.Ascorbate metabolism is an essential procedure for all plant cells that plays important roles in several physiological processes such as plant development and reactive oxygen species detoxification. To shed more light on ascorbate metabolism in certain organs of tomato plants, we performed a detailed compartmentalized analysis of ascorbate concentration, ascorbate peroxidase/dehydroascorbate reductase enzyme activities and transcript accumulation of genes related to ascorbate metabolism. Our results showed higher level of ascorbate concentration and ascorbate peroxidase and dehydroascorbate reductase activities in young leaves and shoot tips, while min. ascorbate concentration was recorded in root tips. The study of the expression of the genes involved in ascorbate metabolism revealed that several genes followed similar patterns. However, APX3 gene expression was considerably higher in reproductive organs, while plastidial APX6 and DHAR2 genes transcripts were barely detectable in root tips. Organ-specific expression of genes involved in ascorbate metabolism suggests that different isoenzymes have a specific role in regulation of the redox status of some of the organs in tomato plants.

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“…Crops and their genotypes having better ability to detoxify reactive oxygen species, enzymatically (POX, PPO and SOD) or non-enzymatically (ascorbic acid, glutathione etc. ), or those which are producing lesser amount of reactive oxygen species are reported to have resistance to waterlogging stress (Lin et al, 2004).…”

Section: Hydrogen Peroxide Contentmentioning

confidence: 99%

Temporal Changes in Biochemical and Antioxidant Enzymes Activities in Maize (Zea mays L.) under Waterlogging Stress during Early Growth Stage

Yadav¹,

Srivastava²

2017

Int.J.Curr.Microbiol.App.Sci

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Study of the root antioxidative system of tomatoes and eggplants under waterlogged conditions

Cited by 112 publications

References 38 publications

Mitigating effects of paclobutrazol on flooding stress damage by shifting biochemical and antioxidant defense mechanisms in mungbean (Vigna radiata L.) at pre-flowering stage

Mitigating effects of paclobutrazol on flooding stress damage by shifting biochemical and antioxidant defense mechanisms in mungbean (Vigna radiata L.) at pre-flowering stage

Ascorbate metabolism in vegetative and reproductive organs of "cherry" tomato

Temporal Changes in Biochemical and Antioxidant Enzymes Activities in Maize (Zea mays L.) under Waterlogging Stress during Early Growth Stage

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