FIND ARTICLE

Volume: 
Issue: 
1
Date of issue: 

Senescence is a developmental stage of the plant life cycle, leading to the death of specific cells, organs for instance leaves, or whole organisms. Initiation of the leaf senescence and its normal process require expression of many specific genes, called senescence-associated genes sags. Different senescence-enhanced genes encoding degradative enzymes such as: proteases, nucleases, also enzymes involved in lipid and carbohydrate metabolism, enzymes involved in nitrogen mobilization, were identified. Significant chromatin condensation, non-random, internucleosomal fragmentation of nuclear DNA (nDNA) and enhanced expression of genes, of which products are specific cysteine proteases in senescing mesophyll prove, that leaf senescence is genetically defined process involving mechanisms of the programmed cell death (PCD).

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: mnowicki@ump.edu.pl

PBK Postępby biologi komórki