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Response of antioxidative enzymes of Abies firma seedlings under chronic acid fog exposure and/or drought treatment.
Environ Sci. 2005; 12(4):213-8.ES

Abstract

To understand the oxidative stress conditions of momi fir (Abies firma Sieb. et Zucc.) seedlings under acid fog exposure and/or drought stress, we assayed the activities of antioxidative enzymes, such as superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX), in the seedlings. We found that SOD and APX activities were not affected by the stress conditions, but drought stress stimulated CAT activity irrespective of acid fog exposure. This suggests the production of a large amount of hydrogen peroxide, which is one of the substances involved in the signal transduction pathway for stomatal closure. However, we previously observed sufficient stomatal closure under drought stress and insufficient stomatal closure under combined acid fog exposure and drought stress. This inconsistency indicates that acid fog exposure affects the signal transduction pathway from the production of hydrogen peroxide to stomatal closure in momi fir seedlings.

Authors+Show Affiliations

Yoshida K
Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan. yoshida_dr817@yahoo.co.jp
Takami C
No affiliation info available
Takenaka C
No affiliation info available
Tezuka T
No affiliation info available

MeSH

AbiesAntioxidantsAscorbate PeroxidasesCatalaseDisastersHydrogen-Ion ConcentrationPeroxidasesPlant LeavesPlant ProteinsSeedlingsSignal TransductionSuperoxide DismutaseWaterWeather

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16184080

Citation

Yoshida, Koji, et al. "Response of Antioxidative Enzymes of Abies Firma Seedlings Under Chronic Acid Fog Exposure And/or Drought Treatment." Environmental Sciences : an International Journal of Environmental Physiology and Toxicology, vol. 12, no. 4, 2005, pp. 213-8.
Yoshida K, Takami C, Takenaka C, et al. Response of antioxidative enzymes of Abies firma seedlings under chronic acid fog exposure and/or drought treatment. Environ Sci. 2005;12(4):213-8.
Yoshida, K., Takami, C., Takenaka, C., & Tezuka, T. (2005). Response of antioxidative enzymes of Abies firma seedlings under chronic acid fog exposure and/or drought treatment. Environmental Sciences : an International Journal of Environmental Physiology and Toxicology, 12(4), 213-8.
Yoshida K, et al. Response of Antioxidative Enzymes of Abies Firma Seedlings Under Chronic Acid Fog Exposure And/or Drought Treatment. Environ Sci. 2005;12(4):213-8. PubMed PMID: 16184080.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Response of antioxidative enzymes of Abies firma seedlings under chronic acid fog exposure and/or drought treatment. AU - Yoshida,Koji, AU - Takami,Chika, AU - Takenaka,Chisato, AU - Tezuka,Takafumi, PY - 2005/9/27/pubmed PY - 2006/9/9/medline PY - 2005/9/27/entrez SP - 213 EP - 8 JF - Environmental sciences : an international journal of environmental physiology and toxicology JO - Environ Sci VL - 12 IS - 4 N2 - To understand the oxidative stress conditions of momi fir (Abies firma Sieb. et Zucc.) seedlings under acid fog exposure and/or drought stress, we assayed the activities of antioxidative enzymes, such as superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX), in the seedlings. We found that SOD and APX activities were not affected by the stress conditions, but drought stress stimulated CAT activity irrespective of acid fog exposure. This suggests the production of a large amount of hydrogen peroxide, which is one of the substances involved in the signal transduction pathway for stomatal closure. However, we previously observed sufficient stomatal closure under drought stress and insufficient stomatal closure under combined acid fog exposure and drought stress. This inconsistency indicates that acid fog exposure affects the signal transduction pathway from the production of hydrogen peroxide to stomatal closure in momi fir seedlings. SN - 0915-955X UR - https://www.unboundmedicine.com/medline/citation/16184080/Response_of_antioxidative_enzymes_of_Abies_firma_seedlings_under_chronic_acid_fog_exposure_and/or_drought_treatment_ DB - PRIME DP - Unbound Medicine ER -