Heterogeneity in bean leaf mesophyll tissue and ion flux profiles: leaf electrophysiological characteristics correlate with the anatomical structure.

ABSTRACT: It has been suggested for some time that the architectural properties of leaf venation are related to leaf functions; however, experimental evidence is scant and, when present, mainly investigates water or carbohydrate transport patterns. Transport of inorganic nutrients in relationship to leaf anatomical structure remains, to a large extent, an unexplored area in plant physiology. In this study, we correlated ion flux profiles with the anatomical structure of bean (Vicia faba L.) leaf mesophyll tissue using a non-invasive ion flux measuring technique (microelectrode ion flux estimation) and scanning electron microscopy. Quasi-periodic patterns of net H+ and K+ flux distributions were found when the mesophyll surface was scanned along the longitudinal axis with 0.1-0.2 mm increments. These

SUBMITTER: Shabala S 

PROVIDER: S-EPMC4233794 | biostudies-literature | 2002 Feb

REPOSITORIES: biostudies-literature