Effects of aluminium on ultrastructure and antioxidant activity in leaves of tea plant

Li, Chunlei; Xu, H.Y.; Xu, Jing; Chun, Xiaoya; Ni, Dejiang

doi:10.1007/s11738-010-0629-0

Cited by 56 publications

(28 citation statements)

References 29 publications

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“…It is known that tealeaves can accumulate large amounts of Al from 8,700 to 23,000 mg kg -1 , and even up to 30,000 mg kg -1 without experiencing Al toxicity (Matsumoto et al 1976). Li et al (2011) demonstrate the adaptation mechanisms in the leaves of the tea plant with an increasing capacity to overcome ROS via antioxidative enzyme systems (SOD, CAT, GPX, APX, and GR) at low Al concentration with CAT and GPX activities of tealeaves playing a more important role. At 0.53 mM Al concentration, the balance between the formation and detoxification of ROS is lost, leading to accumulation of H 2 O 2 , which is responsible for destruction of cell ultrastructure.…”

Section: Responses Of Heavy Metal Stress In Teamentioning

confidence: 86%

ABIOTIC STRESS RESPONSES IN TEA [<i>Camellia sinensis</i> L (O) Kuntze]: AN OVERVIEW

Upadhyaya

Panda

2013

RAS

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Section: Responses Of Heavy Metal Stress In Teamentioning

confidence: 86%

ABIOTIC STRESS RESPONSES IN TEA [<i>Camellia sinensis</i> L (O) Kuntze]: AN OVERVIEW

Upadhyaya

Panda

2013

RAS

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“…Trypsin was added at a mass ratio of 1:50 (trypsin: protein) and theenzymatic hydrolysis was digested overnight at 37 °C. After enzymatic hydrolysis, the peptide segments were desalted by AAA-C18 column (150 mm×4.6 mm I.D., 5 μm, AB SCIEX), and then frozen and dried in vacuum [61].…”

Section: Enzymatic Hydrolysis and Desalinationmentioning

confidence: 99%

iTRAQ-based quantitative proteomic of tobacco (Nicotiana tabacum L.) identified major host proteins involved in photosystems throughout the aging process

Sun

Tang

et al. 2020

Preprint

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Background: Leaf senescence is one of the most common manifestations in plant senescence and has an important effect on plant photosynthesis. Delaying or shorten the senescence of tobacco leaves is one of the important approaches to improve tobacco breeding. However, the molecular regulatory mechanism of tobacco leaf senescence in response to photosynthesis is still poorly understood. To gain insights into the senescence of tobacco leaves, we integrated analyses including photosynthesis, organelle ultrastructure, and proteome of tobacco leaves during senescence. Results:The photosynthetic rate, intercellular CO 2 concentration, stomatal conductance and transpiration rate showed a downward trend, and the stability of organelle decreased with the senescence of tobacco leaves. Isobaric Tag for Relative Absolute Quantitation (iTRAQ) and Parallel Reaction Monitoring (PRM) were used to analyze the proteins expressed in different periods that were estimate based on photosynthetic physiology and ultramicroscopic observations. A total of 321, 319, 223 differentially expressed proteins (DEPs) were identified from over maturity (OM) vs immature (IM), OM vs well maturity (WM) and WM vs IM, respectively, including 122/199, 124/195 and 125/98 up/down proteins, respectively. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that the DEPs were significantly enriched in metabolic pathways, biosynthesis of secondary metabolites, microbial metabolism in diverse environments and starch and sucrose metabolism. In addition, the down-regulated proteins were also involved in metabolic pathways, such as carbon sequestration of photosynthetic organisms and photosynthesis. PRM analysis was performed and indicated that iTRAQ is highly reliable in the identification of major proteins involved in tobacco senescence. Conclusions:This study provided important technical references for screening of host photosynthetic proteins during tobacco leaves senescence and established a basis for scientifically understanding of the senescence mechanism of tobacco leaves.

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“…The decline in RBC count in the current study might have resulted from inhibition of RBC manufactured by mercuric chloride. Likewise, Li et al [16] report a reduction of total content of RBC in the blood of rainbow trout (Oncorhynchus mykiss) exposed to verapamil (VPR), a cardiovascular medicine. Clarias gariepinus exposed to mercuric chloride exhibited a decrease in haemoglobin which indicates that mercury caused anaemia.…”

Section: Discussionmentioning

confidence: 99%

Growth and Haematological Changes in African Catfish Clarias gariepinus Juveniles Exposed to Mercuric Chloride

Isiyaku

Annune

Tiamiyu

2019

JEAI

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The aim of this study was to assess the effect of Mercuric chloride on the growth and haematological parameters in the freshwater catfish, Clarias gariepinus. A total of 30 fishes were used for each concentration as well as in the control. Clarias gariepinus was exposed to 0.02, 0.04, 0.06, 0.08 and 0.10 mg/l of HgCl 2 for 56 days. The treatment with mercuric chloride was found to inflict a drastic reduction in the total count of RBC's. The reduction was time dependent; as concentration of mercuric chloride increased, the RBC levels declined. Exposed fishes showed a significant decrease in WBC count when compared to the control. The morphological indices MCV, MCH and MCHC fluctuate as the test concentration increased. The chronic exposure to sublethal Isiyaku et al.; JEAI, 33(6): 1-7, 2019; Article no.JEAI.27104 2 concentration of mercuric chloride to the studied fish showed a significant decrease in final body weight in comparison to control group. Also, Growth parameters such as specific growth rate (SGR), food conversion efficiency (FCE), protein efficiency ratio (PER), food conversion rate (FCR) decreased with increased concentration of mercuric chloride. The mercuric chloride caused a significant decrease in the survival rate (P < 0.05). Original Research ArticleMeans on the same row with different superscript are statistically different (p<0.05). Keys: Control = 0.00 , Trt 1 = 0.02mg/l, Trt 2 = 0.04mg/l, Trt 3 = 0.06mg/l, Trt 4 = 0.08mg/l, Trt 5 = 0.10mg/l MIW=Mean initial weight, MFW=Mean final weight, MWG=Mean weight gain, SGR=Specific growth rate, FCR=Food conversion rate, FCE=Food conversion efficiency, PER= Protein Efficiency Ratio Peer-review history: The peer review history for this paper can be accessed here:

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Effects of aluminium on ultrastructure and antioxidant activity in leaves of tea plant

Cited by 56 publications

References 29 publications

ABIOTIC STRESS RESPONSES IN TEA [<i>Camellia sinensis</i> L (O) Kuntze]: AN OVERVIEW

ABIOTIC STRESS RESPONSES IN TEA [<i>Camellia sinensis</i> L (O) Kuntze]: AN OVERVIEW

iTRAQ-based quantitative proteomic of tobacco (Nicotiana tabacum L.) identified major host proteins involved in photosystems throughout the aging process

Growth and Haematological Changes in African Catfish Clarias gariepinus Juveniles Exposed to Mercuric Chloride

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