pH-response on leaves and isolated cuticles of Hedera helix L. after wetting with artificial rainwater

Autor:	T. Frevert, O. Klemm, Markus Riederer
Rok vydání:	1987
Předmět:	Measurement method biology Strong acids Chemistry Plant Science Ph measurement biology.organism_classification Rainwater harvesting Horticulture Hedera helix Botany Araliaceae Acid rain Wetting Agronomy and Crop Science Ecology Evolution Behavior and Systematics
Zdroj:	Environmental and Experimental Botany. 27:349-355
ISSN:	0098-8472
DOI:	10.1016/0098-8472(87)90045-1
Popis:	pH measurements on leaves of Hedera helix L. indicated the amount and strength of acids present on the leaves and the buffering mechanisms taking place. To measure the amount and strength of acids on dry leaves the leaf surfaces had to be wetted with water and the pH determined from at least two different wetting thicknesses. For strong acids ΔpH/Δlg vol should be + 0.95. pH microelectrode measurements on untreated leaves and isolated cuticles (the physiologically inner side was kept moist with a pH-buffer solution) indicated that buffering action can be neglected. Hence, the pH on the surfaces of English ivy collected in North Bavaria seems only to be controlled by the acidity of the applied rainwater.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d2a395aecf1791af6134e4ecb23da6df https://doi.org/10.1016/0098-8472(87)90045-1 Zobrazit plný text záznamu