Effects of different inducers on cold resistance physiological characteristics of &lt;I&gt;Capsicum annuum&lt;/I&gt;

Chen, Wenchao; Yang, Bo‐Yi; Zhou, Shudong; Dai, Xiong-ze

doi:10.3724/sp.j.1238.2011.00396

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Photosynthetic organs are cold sensitive parts of plants, and low temperature directly affects the performance and activity of photosynthetic apparatus (Liu et al, 2007). When the GB was sprayed, the chlorophyll content of Phoebe microphylla leaves increased, which indicated that the suitable concentration of exogenous GB could protect the structure and function of chlorophyll, which is similar to the research conclusion of Chen Wenchao (Chen et al, 2011).…”

Section: Discussionsupporting

confidence: 79%

Effects of exogenous glycine betaine (GB) on cold resistance of Phoebe microphylla

Wei¹,

Dai²,

Duan³

et al. 2019

Int. J. Curr. Res. Biosci. Plant Biol.

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The aim was to study exogenous GB on cold resistance of Phoebe microphylla. Taking one-year-old Phoebe microphylla seedlings as materials, effects of different concentrations (50. 100. 150 mmol•L -1 ) exogenous GB on cold resistance of Phoebe microphylla under low temperature. Under low temperature stress, foliar spraying of different concentrations GB significantly decreased malonaldehyde (MDA) content, Relative conductivity, and increased chlorophyll, Soluble protein, Soluble sugar, peroxidase (POD), superoxide dismutase (SOD) activities in Phoebe microphylla. Among 3 kinds of GB concentrations, 150 mmol•L -1 GB was the best for Phoebe microphylla on cold resistance. A certain concentration GB preprocessing mitigates the harm of low temperature stress on Phoebe microphylla seedling, and improves their ability of cold resistance.

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Section: Discussionsupporting

confidence: 79%

Effects of exogenous glycine betaine (GB) on cold resistance of Phoebe microphylla

Wei¹,

Dai²,

Duan³

et al. 2019

Int. J. Curr. Res. Biosci. Plant Biol.

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“…The content of malondialdehyde (MDA) increased significantly in sugar beet under 4 • C cold stress, the activity of antioxidant system enzymes such as T-AOC, SOD, POD, APX and CAT increased significantly, and the antioxidant capacity increased, thus removing the accumulation of reactive oxygen radicals and slowing down the damage caused by cell membrane lipid peroxidation to the cells [15]. After treating pepper with suitable concentration of inducer, on the one hand, it can increase SS content, PRO content and POD activity to relieve the damage caused by low temperature to pepper seedlings; on the other hand, it can reduce the relative conductivity and MDA content of leaves to maintain the balance of reactive oxygen metabolism system, reduce membrane lipid peroxidation, protect protoplasts from damage, and achieve the effect of enhancing the plant's resistance to stress [16]. Cucumber seedlings grafted with coldtolerant rootstocks showed a significant increase in cold tolerance after low temperature treatment by decreasing electrolyte leakage rate and MDA content, increasing Pro content, and improving SOD, POD and CAT activities [17].…”

Section: Introductionmentioning

confidence: 99%

Study on the Mechanism of Grafting to Improve the Tolerance of Pepper to Low Temperature

Long

Suo

et al. 2023

Agronomy

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Pepper is a horticultural crop that does not tolerate low temperatures. To investigate how the grafted pepper responds to low temperature stress in the short term, transcriptome analysis was performed on grafted seedlings treated with low temperature for 1 h, 4 h, 12 h and 24 h compared with those treated for 0 h. The results showed that genes related to CAM4, MPK8, RbohD and OXI1 might be related to the response of grafted seedlings to low temperature stress in the short term. To investigate how low temperature tolerant rootstocks can improve the low temperature tolerance of grafted peppers, morphological and physiological indices of self-rooted and grafted seedlings were analyzed under low temperature conditions for different days. The results showed that the degree of wilting, REL and MDA content of grafted seedlings were significantly lower than those of self-rooted seedlings, and the antioxidant enzyme activities were significantly higher than those of self-rooted seedlings under low temperature stress. The results indicated that grafted pepper would activate ROS-related genes in a short period of time after low temperature stress and produce a large amount of ROS in response to the low temperature stress. When ROS accumulated to a certain level, the grafted pepper could increase the enzyme activity of antioxidant system to remove the ROS produced in the body, and help the pepper seedlings adapt to low temperature stress through osmoregulation mechanism, so as to resist the damage caused by low temperature. The results of the study provide ideas for growing pepper in low temperature environment.

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Effects of different inducers on cold resistance physiological characteristics of <I>Capsicum annuum</I>

Cited by 2 publications

References 3 publications

Effects of exogenous glycine betaine (GB) on cold resistance of Phoebe microphylla

Effects of exogenous glycine betaine (GB) on cold resistance of Phoebe microphylla

Study on the Mechanism of Grafting to Improve the Tolerance of Pepper to Low Temperature

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