Date of issue: 

Abscisic acid (ABA) is involved in many developmental processes and the plant life cycle in their adaptation to environmental stress conditions . An excellent model system for the study of perception and signal transduction of ABA are stomatal cells . Stomatal cell responses to ABA suggests that ABA perception may occur both in plazmolemie , as well as the cytoplasm , however, the receptor proteins have not previously been known. In recent years there has been considerable progress in identifying components of ABA signaling pathways . The stomatal cells are: Ca2 + , cytosolic pH , inositol - 1 ,4,5- trisfosforan , cyclic ADP - ribose, and protein phosphorylation . Selection for ABA -insensitive mutants of maize and Arabidopsis thaliana allowed to know some of the components in the signaling pathway responsible for the development of seeds. The ABA -induced genes have been identified conserved motif which is a promoter sequence response element - ABA ABA response element ( ABRE ) acting as a cis element in the regulation of transcription . Nuclear regulatory proteins have been cloned specifically communicating with ABRE . Most of them are family of transcription factors BZIP

Author of the article: 

The Editorial Board
Andrzej Łukaszyk - przewodniczący, Zofia Bielańska-Osuchowska, Szczepan Biliński, Mieczysław Chorąży, Aleksander Koj, Włodzimierz Korochoda, Leszek Kuźnicki, Aleksandra Stojałowska, Lech Wojtczak

Editorial address:
Katedra i Zakład Histologii i Embriologii Uniwersytetu Medycznego w Poznaniu, ul. Święcickiego 6, 60-781 Poznań, tel. +48 61 8546453, fax. +48 61 8546440, email:

PBK Postępby biologi komórki