𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Studies on an unstable phenotype induced by UV irradiation

✍ Scribed by Claude-Michel Gaillardin; Geneviève Sylvestre; Henri Heslot

Publisher
Springer
Year
1975
Tongue
English
Weight
584 KB
Volume
104
Category
Article
ISSN
0302-8933

No coin nor oath required. For personal study only.

✦ Synopsis

Unstable clones excreting L--lysine into their growth medium are obtained at a very high frequency following UV irradiation in both haploid and diploid strains of Saccharomycopsis lipolytica, provided they carry a mutation affecting the first enzyme of the lysine pathway and confering resistance to end product inhibition. The phenotype can be stabilized in some sublines; it appears as dominant and coupled with a decrease in spore viability. Excretion in batch cultures is confined to the end of the exponential phase, and seems not to consist in a simple release of the lysine pool content.

📜 SIMILAR VOLUMES

Cell adhesion on polytetrafluoroethylene
Cell adhesion on polytetrafluoroethylene modified by UV-irradiation in an ammonia atmosphere
✍ J. Heitz; V. Švorčík; L. Bačáková; K. Ročková; E. Ratajová; T. Gumpenberger; D. 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 271 KB

## Abstract We report on the modification of polytetrafluoroethylene (PTFE) by exposure to the ultraviolet (UV) light of a Xe~2~\*‐excimer lamp at a wavelength of 172 nm in an ammonia atmosphere. Typical treatment times were up to 30 min. Subsequently, the samples were grafted with the amino acid a

An angle-resolved TOF study on the UV la
An angle-resolved TOF study on the UV laser-induced etching of InP(100) surface with chlorine
✍ Q.Z. Qin; P.H. Lu; Z.J. Zhuang; Q.K. Zheng 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 448 KB

Angular and velocity distributions of desorbing products from UV laser-induced etching of InP( 100) surface with a supersonic chlorine molecular beam have been measured with a rotatable quadrupole mass spectrometer. Pulsed laser irradiation at 355 nm produced InCl angular distributions can be fit by