Changes of antioxidative enzymes, lipid peroxidation and chlorophyll content in chickpea types colonized by different Glomus species under drought stress

Sohrabi, Yousef; Heidari, Gholamreza; Weisany, Weria; Golezani, K Ghasemi; Mohammadi, Khosro

doi:10.1007/s13199-012-0152-8

Cited by 58 publications

(32 citation statements)

References 59 publications

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“…Their increase during drought stress has been reported in non-clonal plants as indicators of drought stress [48], [71], [74]. We also found a clear increase in POD, SOD, APX, and CAT levels in stressful conditions, which is consistent with the findings in many non-clonal plants during drought stress [47], [75], [76].…”

Section: Discussionsupporting

confidence: 91%

Physiological Integration Ameliorates Negative Effects of Drought Stress in the Clonal Herb Fragaria orientalis

Zhang

Sammul

2012

PLoS ONE

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Clonal growth allows plants to spread horizontally and to establish ramets in sites of contrasting resource status. If ramets remain physiologically integrated, clones in heterogeneous environments can act as cooperative systems – effects of stress on one ramet can be ameliorated by another connected ramet inhabiting benign conditions. But little is known about the effects of patch contrast on physiological integration of clonal plants and no study has addressed its effects on physiological traits like osmolytes, reactive oxygen intermediates and antioxidant enzymes. We examined the effect of physiological integration on survival, growth and stress indicators such as osmolytes, reactive oxygen intermediates (ROIs) and antioxidant enzymes in a clonal plant, Fragaria orientalis, growing in homogenous and heterogeneous environments differing in patch contrast of water availability (1 homogeneous (no contrast) group; 2 low contrast group; 3 high contrast group). Drought stress markedly reduced the survival and growth of the severed ramets of F. orientalis, especially in high contrast treatments. Support from a ramet growing in benign patch considerably reduced drought stress and enhanced growth of ramets in dry patches. The larger the contrast between water availability, the larger the amount of support the depending ramet received from the supporting one. This support strongly affected the growth of the supporting ramet, but not to an extent to cause increase in stress indicators. We also found indication of costs related to maintenance of physiological connection between ramets. Thus, the net benefit of physiological integration depends on the environment and integration between ramets of F. orientalis could be advantageous only in heterogeneous conditions with a high contrast.

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Section: Discussionsupporting

confidence: 91%

Physiological Integration Ameliorates Negative Effects of Drought Stress in the Clonal Herb Fragaria orientalis

Zhang

Sammul

2012

PLoS ONE

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“…Water deficit significantly influenced shoot height of chickpea, particularly in non‐inoculated control plants where increased water deficit significantly decreased shoot height; in plants inoculated with R. irregularis where moderate water deficit significantly reduced shoot height in comparison with plants without water deficit; and in dually inoculated plants where severe water deficit (S) resulted in a reduction of shoot height of chickpea when compared with plants without water deficit. Reduced irrigation in order to maintain severe water stress was shown to be detrimental to the growth of chickpea, since a reduction in plant height under such conditions has been reported …”

Section: Resultsmentioning

confidence: 99%

“…Reduced irrigation in order to maintain severe water stress was shown to be detrimental to the growth of chickpea, since a reduction in plant height under such conditions has been reported. 38 Overall there was no significant effect of bacterial inoculation, fungal inoculation and water deficit on the dry weight of roots of chickpea (Table 1). The exception was in plants inoculated with M. mediterraneum and subjected to moderate water deficit, where root dry weight was significantly greater than the respective non-inoculated control (Fig.…”

Section: Plant Growthmentioning

confidence: 94%

Increased protein content of chickpea (Cicer arietinum L.) inoculated with arbuscular mycorrhizal fungi and nitrogen‐fixing bacteria under water deficit conditions

et al. 2017

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“…Protective substances include enzymes, such as SOD, POD and CAT. SOD is a primary O 2 - scavenger, and CAT dismutates H 2 O 2 into water and molecular oxygen, and POD decomposes H 2 O 2 by oxidation of co-substrates such as phenolic compounds and/or antioxidants 23 . DgWRKY5 transformed chrysanthemum plants contained highly activity of ROS scavenging enzymes (SOD, POD and CAT), compared with WT under non-stress condition and salt treatment.…”

Section: Discussionmentioning

confidence: 99%

Chrysanthemum WRKY gene DgWRKY5 enhances tolerance to salt stress in transgenic chrysanthemum

Liang

Wang

et al. 2017

Sci Rep

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WRKY transcription factors play important roles in plant growth development, resistance and substance metabolism regulation. However, the exact function of the response to salt stress in plants with specific WRKY transcription factors remains unclear. In this research, we isolated a new WRKY transcription factor DgWRKY5 from chrysanthemum. DgWRKY5 contains two WRKY domains of WKKYGQK and two C2H2 zinc fingers. The expression of DgWRKY5 in chrysanthemum was up-regulated under various treatments. Meanwhile, we observed higher expression levels in the leaves contrasted with other tissues. Under salt stress, the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) enzymes in transgenic chrysanthemum were significantly higher than those in WT, whereas the accumulation of H2O2, O2 − and malondialdehyde (MDA) was reduced in transgenic chrysanthemum. Several parameters including root length, root length, fresh weight, chlorophyll content and leaf gas exchange parameters in transgenic chrysanthemum were much better compared with WT under salt stress. Moreover, the expression of stress-related genes DgAPX, DgCAT, DgNCED3A, DgNCED3B, DgCuZnSOD, DgP5CS, DgCSD1 and DgCSD2 was up-regulated in DgWRKY5 transgenic chrysanthemum compared with that in WT. These results suggested that DgWRKY5 could function as a positive regulator of salt stress in chrysanthemum.

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Changes of antioxidative enzymes, lipid peroxidation and chlorophyll content in chickpea types colonized by different Glomus species under drought stress

Cited by 58 publications

References 59 publications

Physiological Integration Ameliorates Negative Effects of Drought Stress in the Clonal Herb Fragaria orientalis

Physiological Integration Ameliorates Negative Effects of Drought Stress in the Clonal Herb Fragaria orientalis

Increased protein content of chickpea (Cicer arietinum L.) inoculated with arbuscular mycorrhizal fungi and nitrogen‐fixing bacteria under water deficit conditions

Chrysanthemum WRKY gene DgWRKY5 enhances tolerance to salt stress in transgenic chrysanthemum

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