| Literature DB >> 18987800 |
Abstract
The effectiveness of 2,3-butanedione monoxime (BDM) as an inhibitor of plant myosins has been investigated. Three myosin-dependent motility phenomena in plants, namely cytoplasmic streaming in Chara corallina, light-dependent chloroplast repositioning in Elodea sp., and brefeldin A(BFA)-induced Golgi membrane dynamics in wheat (Triticum aestivum L. cv. Kite) root-tip cells were investigated. All three processes were inhibited by the sulfhydryl-modifying agent N-ethylmalemide (NEM), indicating the probable involvement of myosin as the motor protein in each case. However, none of these myosin-dependent processes were inhibited by BDM at concentrations as high as 20 mM in some instances. These results therefore question the general usefulness of BDM as an inhibitor of myosin-based activities in plant cells.Entities:
Year: 1999 PMID: 18987800 DOI: 10.1007/BF01415707
Source DB: PubMed Journal: Protoplasma ISSN: 0033-183X Impact factor: 3.356