Aluminum induced physiological and proteomic responses in tea ( Camellia sinensis ) roots and leaves

Xu, Qingshan; Wang, Yu; Ding, Zhaotang; Fan, Kai; Ma, Dexin; Zhang, Yongliang; Yin, Qi

doi:10.1016/j.plaphy.2017.03.017

Cited by 31 publications

(11 citation statements)

References 47 publications

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“…Chloroplasts, mitochondria, and plasma membranes of plant cells are major sites of ROS generation under stress conditions [ 37 ]. In this study, ultrastructural investigation revealed that PEG, Al alone, and combined (pH 4.0+PEG+Al) stresses damaged the ultrastructure of chloroplasts, as manifested by the disturbed shape, the dilation of thylakoid membranes, and the accumulation of osmophilic plastoglobuli ( Figure 7 ), with Dayton and Tadmor being greatly affected.…”

Section: Discussionmentioning

confidence: 99%

Tolerance to Drought, Low pH and Al Combined Stress in Tibetan Wild Barley Is Associated with Improvement of ATPase and Modulation of Antioxidant Defense System

Ahmed

Nadira

Qiu

et al. 2018

IJMS

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Aluminum (Al) toxicity and drought are two major constraints on plant growth in acidic soils, negatively affecting crop performance and yield. Genotypic differences in the effects of Al/low pH and polyethyleneglycol (PEG) induced drought stress, applied either individually or in combination, were studied in Tibetan wild (XZ5, drought-tolerant; XZ29, Al-tolerant) and cultivated barley (Al-tolerant Dayton; drought-tolerant Tadmor). Tibetan wild barley XZ5 and XZ29 had significantly higher H+-ATPase, Ca2+Mg2+-ATPase, and Na+K+-ATPase activities at pH 4.0+Al+PEG than Dayton and Tadmor. Moreover, XZ5 and XZ29 possessed increased levels in reduced ascorbate and glutathione under these conditions, and antioxidant enzyme activities were largely stimulated by exposure to pH 4.0+PEG, pH 4.0+Al, and pH 4.0+Al+PEG, compared to a control and to Dayton and Tadmor. The activity of methylglyoxal (MG) was negatively correlated with increased levels of glyoxalase (Gly) I and Gly II in wild barley. Microscopic imaging of each genotype revealed DNA damage and obvious ultrastructural alterations in leaf cells treated with drought or Al alone, and combined pH 4.0+Al+PEG stress; however, XZ29 and XZ5 were less affected than Dayton and Tadmor. Collectively, the authors findings indicated that the higher tolerance of the wild barley to combined pH 4.0+Al+PEG stress is associated with improved ATPase activities, increased glyoxalase activities, reduced MG, and lower reactive oxygen species levels (like O2− and H2O2) due to increased antioxidant enzyme activities. These results offer a broad comprehension of the mechanisms implicated in barley’s tolerance to the combined stress of Al/low pH and drought, and may provide novel insights into the potential utilization of genetic resources, thereby facilitating the development of barley varieties tolerant to drought and Al/low pH stress.

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Section: Discussionmentioning

confidence: 99%

Tolerance to Drought, Low pH and Al Combined Stress in Tibetan Wild Barley Is Associated with Improvement of ATPase and Modulation of Antioxidant Defense System

Ahmed

Nadira

Qiu

et al. 2018

IJMS

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“…The present study showed that the lignin content increased during the development of leaves in both tea plant cultivars Fudingdabai and Suchazao, while the expression level of CsCCR was not uniform 30 . Recent research has shown that the accumulation of CCR increases in the roots and decreases in the leaves of tea plants under high concentrations of Al stress, while the lignin content decreases in both organs 31 . In our study, the accumulation of CCR was downregulated in tea plants under drought stress, while the content of lignin increased.…”

Section: The Accumulation Of Proteins Related To Lignin Biosynthesis mentioning

confidence: 99%

Drought stress triggers proteomic changes involving lignin, flavonoids and fatty acids in tea plants

Wang

Xie

et al. 2020

Sci Rep

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Drought stress triggers a series of physiological and biochemical changes in tea plants. It is well known that flavonoids, lignin and long-chain fatty acids play important roles in drought resistance. However, changes in proteins related to these three metabolic pathways in tea plants under drought stress have not been reported. We analysed the proteomic profiles of tea plants by tandem mass tag and liquid chromatography-tandem mass spectrometry. A total of 4789 proteins were identified, of which 11 and 100 showed up- and downregulation, respectively. The proteins related to the biosynthesis of lignin, flavonoids and long-chain fatty acids, including phenylalanine ammonia lyase, cinnamoyl-CoA reductase, peroxidase, chalcone synthase, flavanone 3-hydroxylase, flavonol synthase, acetyl-CoA carboxylase 1,3-ketoacyl-CoA synthase 6 and 3-ketoacyl-CoA reductase 1, were downregulated. However, the contents of soluble proteins, malondialdehyde, total phenols, lignin and flavonoids in the tea plants increased. These results showed that tea plants might improve drought resistance by inhibiting the accumulation of synthases related to lignin, flavonoids and long-chain fatty acids. The proteomic spectrum of tea plants provides a scientific basis for studying the pathways related to lignin, flavonoid and long-chain fatty acid metabolism in response to drought stress.

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“…Proteins involved in phenylpropanoid and lignin metabolism are differentially changed in the roots, while proteins involved in photosynthesis were all stimulated in the leaves. Enzymes involved in glutathione metabolism and citrate synthesis related to the TCA cycle were accumulated in tea roots in response to Al (Xu et al 2017). …”

Section: Molecular Genetic Studies On Tea Plants Under Stressmentioning

confidence: 99%

Environmental and nutritional requirements for tea cultivation

Hajiboland

2017

Folia Horticulturae

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Tea (Camellia sinensis) is an important beverage crop cultivated in the tropics and subtropics under acid soil conditions. Increased awareness of the health-promoting properties of the tea beverage has led to an increase in its level of consumption over the last decades. Tea production contributes significantly to the economy of several tea-cultivating countries in Asia and Africa. Environmental constrains, particularly water deficiency due to inadequate and/or poorly distributed rainfall, seriously limit tea production in the majority of tea-producing countries. It is also predicted that global climate change will have a considerable adverse impact on tea production in the near future. Application of fertilizers for higher production and increased quality and quantity of tea is a common agricultural practice, but due to its environmental consequences, such as groundwater pollution, the rate of fertilizer application needs to be reconsidered. Cultivation of tea under humid conditions renders it highly susceptible to pathogens and pest attacks. Application of pesticides and fungicides adversely affects the quality of tea and increases health risks of the tea beverage. Organic cultivation as an agricultural practice without using synthetic fertilizers and other chemical additives such as pesticides and fungicides is a sustainable and eco-friendly approach to producing healthy tea. A growing number of tea-producing countries are joining organic tea cultivation programmes in order to improve the quality and to maintain the health benefits of the tea produced.Ke y wor d s: aluminium, global climate change, nitrogen fertilizers, organic culture, phosphorus fertilizers, soil pH, water deficiency Abbreviations: C a -atmospheric CO 2 concentration, T a -atmospheric temperature, ESTs -estimated sequence tags, N sh -harvestable shoot density, W sh -harvestable shoot weight, C i -intracellular CO 2 concentration, T l -leaf temperature, P max -maximum photosynthetic rate, T m -maximum temperature, P n -net photosynthetic rate, T o -optimum temperature, PAR -photosynthetic active radiation, ROS -reactive oxygen species, SER -shoot extension rate, SRC -shoot replacement cycle, T s -soil temperature, SWD -soil water deficit, g s -stomatal conductance, SSH technique -suppression subtractive hybridization technique, T t -threshold temperature, TE -transpiration efficiency, VPD -vapour pressure deficit, WUE -water use efficiency

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Aluminum induced physiological and proteomic responses in tea ( Camellia sinensis ) roots and leaves

Cited by 31 publications

References 47 publications

Tolerance to Drought, Low pH and Al Combined Stress in Tibetan Wild Barley Is Associated with Improvement of ATPase and Modulation of Antioxidant Defense System

Tolerance to Drought, Low pH and Al Combined Stress in Tibetan Wild Barley Is Associated with Improvement of ATPase and Modulation of Antioxidant Defense System

Drought stress triggers proteomic changes involving lignin, flavonoids and fatty acids in tea plants

Environmental and nutritional requirements for tea cultivation

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