Characterization of L-asparagine transport systems in Stemphylium botryosum
نویسندگان
چکیده
منابع مشابه
Characterization of L-asparagine transport systems in Stemphylium botryosum.
L-Asparagine uptake by Stemphylium botryosum is mediated by two distinct energy- and temperature-dependent transport systems. One permease is relatively specific for L-asparagine and L-glutamine and is present in nutrient-sufficient mycelium. The specific permease shows an optimum pH at 5.2, saturation kinetics (Km = 4.4 x 10(-4) M, Vmax = 1.1 mumol/g per min), competitive gradient of L-asparag...
متن کاملCultural and Physiological Variation Between Isolates of Stemphylium botryosum the Causal of Stemphylium Blight Disease of Lentil (Lens culinaris)
A total of four isolates of Stemphylium botryosum infected lentil were collected from lentil plants showing blight symptoms and grown at different areas of Bangladesh. The isolates were characterized in terms of cultural, morphological and physiological parameters. The isolates varied significantly in their cultural, morphological and physiological traits of colony color, shape, texture, conidi...
متن کاملA fine-structural study of conidium initiation in Stemphylium botryosum Wallroth.
Conidia and conidiophores from synchronously sporulating cultures of Stemphyliiim botryosum were fixed and embedded at successive intervals for examination under the electron microscope. The spore initial arises as a small bud at the tip of the conidiophore, and no discontinuity between the conidiophore wall and the spore can be detected. The single-celled bud and the tip cell of the conidiopho...
متن کاملL-Asparagine auxotrophs of Saccharomyces cerevisiae: genetic and phenotypic characterization.
L-Asparagine auxotrophy in Saccharomyces cerevisiae is the result of mutation in each of two unlinked cistrons, ASN1 and ASN2. Mutation in only one of these cistrons yields growth indistinguishable from that of wild-type cells under a variety of nutritional stresses. Relatively high concentrations of L-asparagine are required to permit maximal growth of the auxotrophs, and the amino acid requir...
متن کاملN-(Phenylsulfonyl)-l-asparagine
In the title compound, C(10)H(12)N(2)O(5)S, one of the sulfonyl O atoms is hydrogen bonded to the amido N atom of an adjacent mol-ecule. There is also a weak hydrogen-bonding inter-action between the other sulfonyl O atom and the secondary amino N atom. In addition, the amido O atom is also hydrogen bonded to a carboxyl O atom. These hydrogen-bonding inter-actions give rise to a layer structure...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1976
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.127.3.1127-1135.1976