PMID- 16193516 OWN - NLM STAT- MEDLINE DCOM- 20060418 LR - 20081121 IS - 0006-3592 (Print) IS - 0006-3592 (Linking) VI - 93 IP - 2 DP - 2006 Feb 5 TI - A novel microsurgery method for intact plant tissue at the single cell level using ArF excimer laser microprojection. PG - 325-31 AB - A novel microsurgery technique for the partial removal of rigid cell-walls in intact plant tissue is established. Using a size-variable slit, an ArF excimer laser was microprojected on the surface of the targeted cell, and this method enabled the area- and depth-controllable processing of the cortical structure of plant cells including the cuticle and cell wall layer. In epidermal cells of all tested plants, viabilities of more than 90% were retained 24 h after irradiation. Scanning electron microscope (SEM) observation revealed that the cuticle layer of the irradiated region was completely ablated, and the cellulose microfibrils of the secondary cell wall were partially removed; furthermore, 4 days after laser treatment, the regeneration of cell wall fibrils was observed. As a model experiment, the transient expression of synthetic green fluorescent protein (sGFP) was performed by the microinjection of cauliflower mosaic virus (CMV) 35S promoter-derived sGFP gene through an "aperture" in the treated cell surface. Moreover, micron-sized fluorescent beads were successfully introduced by the same method into the onion cells indicating that this method can be used to introduce foreign materials as large as organelles. CI - (c) 2005 Wiley Periodicals, Inc. FAU - Kajiyama, Shin'ichiro AU - Kajiyama S AD - Department of Biotechnology Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. kaiyama@bio.eng.osaka-u.ac.jp FAU - Shoji, Takeshi AU - Shoji T FAU - Okuda, Shinya AU - Okuda S FAU - Izumi, Yoshihiro AU - Izumi Y FAU - Fukusaki, Ei-ichiro AU - Fukusaki E FAU - Kobayashi, Akio AU - Kobayashi A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biotechnol Bioeng JT - Biotechnology and bioengineering JID - 7502021 RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Caulimovirus/genetics MH - *Gene Transfer Techniques MH - Green Fluorescent Proteins/analysis/genetics MH - *Lasers MH - Microinjections/*methods MH - Microscopy, Electron, Scanning MH - Onions/chemistry/genetics/radiation effects MH - Plants/*radiation effects/ultrastructure MH - Promoter Regions, Genetic/genetics EDAT- 2005/09/30 09:00 MHDA- 2006/04/19 09:00 CRDT- 2005/09/30 09:00 PHST- 2005/09/30 09:00 [pubmed] PHST- 2006/04/19 09:00 [medline] PHST- 2005/09/30 09:00 [entrez] AID - 10.1002/bit.20709 [doi] PST - ppublish SO - Biotechnol Bioeng. 2006 Feb 5;93(2):325-31. doi: 10.1002/bit.20709.