title: Effects of ascorbic acid on some physiological changes of pepino (Solanum muricatum Ait.) under chilling stress.
abstract: In this study, the changes caused by chilling stress on some physiological parameters of pepino (Solanum muricatum Ait.) plant and the effects of ascorbic acid (100 mM) applied exogenously on these changes were examined. For this purpose, the photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophylls and carotenoids), ascorbic acid, total phenolic compounds, malondialdehyde and proline contents in leaves of pepino taken on 5th and 10th days were determined. As a result of chilling stress, it was found that while the photosynthetic pigments and proline contents decreased in pepino leaves, the ascorbic acid, total phenolic compounds and malondialdehyde contents increased. In plants which were subjected to pre-treatment of ascorbic acid on the 10th day of stress, ascorbic acid and proline contents increased while a decrease was observed in malondialdehyde content, compared to stress group without pre-treated. This study may be important for explaining resistance induced by treatment of exogenous ascorbic acid in pepino exposed to chilling stress.
authors.affiliation: Adiyaman University Department of Biology, Art and Science Faculty Adiyaman Turkey.
authors.forename: Aysel
authors.initials: A
authors.lastname: Sivaci
authors.affiliation: Adiyaman University Department of Plant and Animal Production, Kahta Vocational School Adiyaman Turkey.
authors.forename: A
authors.initials: A
authors.lastname: Kaya
authors.affiliation: Adiyaman University Graduate School of Sciences Adiyaman Turkey.
authors.forename: Sevcan
authors.initials: S
authors.lastname: Duman
mesh_terms: D000975:Antioxidants / Q000494:pharmacology*; D001205:Ascorbic Acid / Q000494:pharmacology*; D002338:Carotenoids / Q000378:metabolism; D002734:Chlorophyll / Q000378:metabolism; D000077194:Chlorophyll A; D003080:Cold Temperature; D058639:Cold-Shock Response / Q000187:drug effects*; D008315:Malondialdehyde / Q000378:metabolism; D010636:Phenols / Q000378:metabolism; D018515:Plant Leaves / Q000187:drug effects / Q000378:metabolism; D011392:Proline / Q000378:metabolism; D032322:Solanum / Q000187:drug effects* / Q000378:metabolism; D013997:Time Factors
chemical_list: D000975:Antioxidants; D010636:Phenols; D002734:Chlorophyll; D002338:Carotenoids; D008315:Malondialdehyde; C037184:chlorophyll b; D011392:Proline; D001205:Ascorbic Acid; D000077194:Chlorophyll A
keywords: Pepino (Solanum muricatum Ait.); ascorbic acid; chilling stress; physiological parameters