Pathogenesis-related functions of plant beta-1,3-glucanases investigated by antisense transformation--a review

Gene
R Beffa, F Meins

Abstract

Plant beta-1,3-glucanases (beta Glu) have been implicated in several physiological and developmental processes, e.g., cell division, microsporogenesis, pollen germination, fertilization and seed germination. These enzymes, particularly the antifungal class-I vacuolar isoforms, are also believed to be part of the defences of plants against fungal infection. The function of beta Glu in tobacco and Nicotiana sylvestris has been investigated by antisense transformation. Transformation with GLA, the gene encoding the A isoform of tobacco class-I beta Glu, in reverse orientation regulated by the strong cauliflower mosaic virus 35S RNA promoter effectively and specifically blocked the induction of class-I beta Glu. This induction was in response to ethylene treatment and following infection with the pathogenic fungus, Cercospora nicotianae, tobacco mosaic virus (TMV) and tobacco necrosis virus (TNV). Nevertheless, the plants compensated for this deficiency by producing a functionally equivalent (i.e., "ersatz') enzyme or enzymes. The fact that compensation occurred specifically in response to infection suggests that beta Glu activity has an important role in pathogenesis. Antisense transformation substantially reduced lesion size and ...Continue Reading

Citations

Feb 3, 2007·The Plant Journal : for Cell and Molecular Biology·Amit LevyBernard L Epel
Feb 11, 2003·Molecular Plant-microbe Interactions : MPMI·Ingela FridborgSusan Angell
Feb 8, 2006·Canadian Journal of Microbiology·A J De LuccaD E Wedge
Aug 17, 2005·Proceedings of the National Academy of Sciences of the United States of America·Shoko Ueki, Vitaly Citovsky
May 10, 2013·Molecular Plant-microbe Interactions : MPMI·Raul ZavalievBernard L Epel
May 6, 2014·Frontiers in Plant Science·Nico De Storme, Danny Geelen
Mar 13, 2015·Frontiers in Plant Science·Zhibo ZhangDag-Ragnar Blystad
Mar 16, 2018·International Journal of Molecular Sciences·Katarzyna Otulak-KoziełBenham E L Lockhart
Dec 1, 2010·Protoplasma·Raul ZavalievVitaly Citovsky
Jun 27, 2001·Applied and Environmental Microbiology·C P Selitrennikoff
Mar 30, 2021·Frontiers in Microbiology·Edmund KoziełJózef Julian Bujarski
Jan 26, 2010·Journal of Microbiological Methods·Marcelo Henrique Soller RamadaRoberto do Nascimento Silva

❮ Previous
Next ❯

Related Concepts

Related Feeds

Antifungals (ASM)

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.