caa a22 4500 445840897 CHVBK 20180317145343.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10725-010-9537-y doi (NATIONALLICENCE)springer-10.1007/s10725-010-9537-y Physiological responses of kiwifruit plants to exogenous ABA under drought conditions [Elektronische Daten] [Yanlei Wang, Fengwang Ma, Mingjun Li, Dong Liang, Jun Zou] We studied the physiological responses to abscisic acid (ABA) when 2-year-old potted plants of kiwifruit (Actinidia deliciosa) were grown under moisture stress. Leaves treated with 60μM exogenous ABA through various means had less severe damage when water was limiting, and sprayed plants showed relatively greater drought resistance. This indicates that ABA improves tolerance in kiwifruit, reducing membrane permeability and enhancing the activities of antioxidant enzymes, e.g., peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX), and glutathione reductase (GR). Exposure to ABA led to higher levels of antioxidants, such as ABA and glutathione (GSH), while altering the amounts of endogenous hormones—ABA, indole-3-acetic acid (IAA), and Gibberellin (GA)—and organic oxalate, malate, and citrate in the leaves. Although daily applications of ABA were more effective than a single spray event, the effect of treatment, i.e., avoiding tissue damage and increasing plant resistance, was more apparent on Day 4 than on Day 6. No difference in response was apparent between control plants (regular irrigation) and those sprayed with ABA on Day 4 of the drought period. Springer Science+Business Media B.V., 2010 Abscisic acid nationallicence Actinidia deliciosa nationallicence Drought nationallicence Physiological characteristics nationallicence Wang Yanlei College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut Ma Fengwang College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut Li Mingjun College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut Liang Dong College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut Zou Jun College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut Plant Growth Regulation Springer Netherlands 64/1(2011-05-01), 63-74 0167-6903 64:1<63 2011 64 10725 https://doi.org/10.1007/s10725-010-9537-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10725-010-9537-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Yanlei College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut NATIONALLICENCE 700 1- Ma Fengwang College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut NATIONALLICENCE 700 1- Li Mingjun College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut NATIONALLICENCE 700 1- Liang Dong College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut NATIONALLICENCE 700 1- Zou Jun College of Horticulture, Northwest A&F University, 712100, Yangling, Shaanxi, China aut NATIONALLICENCE 773 0- Plant Growth Regulation Springer Netherlands 64/1(2011-05-01), 63-74 0167-6903 64:1<63 2011 64 10725 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer