caa a22 4500 463160045 CHVBK 20180406164744.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10535-007-0101-1 doi (NATIONALLICENCE)springer-10.1007/s10535-007-0101-1 Exogenous 4-hydroxybenzoic acid and salicylic acid modulate the effect of short-term drought and freezing stress on wheat plants [Elektronische Daten] [E. Horváth, M. Pál, G. Szalai, E. Páldi, T. Janda] Exogenous salicylic acid has been shown to confer tolerance against biotic and abiotic stresses. In the present work the ability of its analogue, 4-hydroxybenzoic acid to increase abiotic stress tolerance was demonstrated: it improved the drought tolerance of the winter wheat (Triticum aestivum L.) cv. Cheyenne and the freezing tolerance of the spring wheat cv. Chinese Spring. Salicylic acid, however, reduced the freezing tolerance of Cheyenne and the drought tolerance of Chinese Spring, in spite of an increase in the guaiacol peroxidase and ascorbate peroxidase activity. The induction of cross tolerance between drought and freezing stress was observed: drought acclimation increased the freezing tolerance of Cheyenne plants and cold acclimation enhanced the drought tolerance. The induction of drought tolerance in Cheyenne was correlated with an increase in catalase activity. Institute of Experimental Botany, ASCR, 2007 antioxidant activity nationallicence chlorophyll fluorescence induction nationallicence low temperature nationallicence water stress nationallicence APX : ascorbate peroxidase nationallicence CAT : catalase nationallicence Chl : chlorophyll nationallicence Fm : maximal fluorescence nationallicence Fv : variable fluorescence nationallicence GPX : guaiacol peroxidase nationallicence GR : glutathione reductase nationallicence 4-HBA : 4-hydroxybenzoic acid nationallicence PAL : phenylalanine ammonialyase nationallicence PEG : polyethylene glycol nationallicence PPFD : photosynthetic photon flux density nationallicence PR : pathogenesis-related nationallicence PS 2 : photosystem 2 nationallicence SA : salicylic acid nationallicence SAR : systemic acquired resistance nationallicence Horváth E. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut Pál M. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut Szalai G. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut Páldi E. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut Janda T. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/3(2007-09-01), 480-487 0006-3134 51:3<480 2007 51 10535 https://doi.org/10.1007/s10535-007-0101-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10535-007-0101-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Horváth E. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut NATIONALLICENCE 700 1- Pál M. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut NATIONALLICENCE 700 1- Szalai G. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut NATIONALLICENCE 700 1- Páldi E. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut NATIONALLICENCE 700 1- Janda T. Agricultural Research Institute of the Hungarian Academy of Sciences, POB 19, H-2462, Martonvásár, Hungary aut NATIONALLICENCE 773 0- Biologia Plantarum Kluwer Academic Publishers-Consultants Bureau 51/3(2007-09-01), 480-487 0006-3134 51:3<480 2007 51 10535 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer