ArticleMolecular biology reports2012
Interrelationship between calmodulin (CaM) and H2O2 in abscisic acid-induced antioxidant defense in the seedlings of Panax ginseng.
Article in Molecular biology reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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8 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
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- Transcriptome sequencing and analysis of major genes involved in calcium signaling pathways in pear plants (Pyrus calleryana Decne.).BMC genomics · 2015Article
- Acclimation of hydrogen peroxide enhances salt tolerance by activating defense-related proteins in Panax ginseng C.A. Meyer.Molecular biology reports · 2014Article
- Effects of diethylphthalate and di-(2-ethyl)hexylphthalate on the physiology and ultrastructure of cucumber seedlings.Environmental science and pollution research international · 2014Article
- Genome-wide identification and functional analyses of calmodulin genes in Solanaceous species.BMC plant biology · 2013Article
- The Colletotrichum gloeosporioides species complex.Studies in mycology · 2012Article
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7 authors at 1 institution in 1 country.
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Abstract
Calmodulin (CaM), the predominant Ca(2+) receptors, is one of the best-characterized Ca(2+) sensors in all eukaryotes. In this study the role of CaM and the possible interrelationship between CaM and hydrogen peroxide (H(2)O(2)) in abscisic acid (ABA) induced antioxidant defense were investigated in the seedling of Panax ginseng. Treatment of ABA (100 μM) and H(2)O(2) (10 mM) increased the expression of Panax ginseng calmodulin gene (PgCaM) and significantly enhanced the expression of the antioxidant marker genes such as superoxide dismutase, ascorbate peroxidase, glutathione reductase and the activities of chloroplastic and cytosolic antioxidant enzymes. Pretreatments with two CaM antagonists, trifluoperazine (TFP), N-(6-aminohexyl)-5-chloro-1-naphthalene sulfonamide hydrochloride (W7) and inhibitor or scavenger, diphenyleneiodonium chloride, and dimethylthiourea of reactive oxygen species almost completely suppressed the up-regulation of antioxidant and PgCaM gene. Moreover, H(2)O(2) production and CaM content was almost completely inhibited by pretreatments with two CaM antagonists. In addition, the expressions of PgCaM gene under different biotic stress were analyzed at different time intervals. Thus it may suggests that CaM are involved in ABA-induced increased expression of PgCaM which triggers H(2)O(2) production through activating trans-plasma membrane NADPH oxidase, resulting in up-regulation of defense related antioxidant gene and also plays a pivotal role in defense response against pathogens.
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