منابع مشابه
Wall Structure of Ascospores of Neurospora Tetrasperma
BOURRELLY, P. 1956. Initiation pratique a la systematique des algues d'eau douce. Bull. Micr. Appliq, ser. 2, 6: 122-141. CAVE, MARION S. AND MARY A. POCOCK. 1951a. The acetocarmine technique applied to the colonial Volvocales. Stain Tech. 26: 173-174. --AND ---. 1951b. Karyological studies in the Volvocales. Amer. Jour. Bot. 38: 800-811. -AND ---. 1956. The variable chromosome number in Astrep...
متن کاملNuclear orientation in the ascospores of Neurospora tetrasperma.
OUR successive nuclear divisions occur during ascus development in Neurospora tetrasperma. The first two divisions are meiotic; the last two, mitotic. Previous cytological studies of ascus development have emphasized primarily the importance of the second and third divisions, during which rather elaborate mechanisms of nuclear movement provide that descendants of each of the two nuclei separate...
متن کاملUptake of nitrite by Neurospora crassa.
Like the nitrate transport system, the nitrite uptake system in Neurospora crassa is induced by either nitrate or nitrite. This induction is prevented by cycloheximide, puromycin, or 6-methyl purine. The K(m) for nitrite of the induced nitrite uptake system is 86 muM, and the V(max) is 100 mumol of nitrite per g (wet weight) per h. Nitrite uptake is inhibited by metabolic poisons such as arsena...
متن کاملPhysiology of the cell surface of Neurospora ascospores. II. Interference with dye adsorption by polymyxin.
One reason frequently advanced to explain the toxic effect of antibiotics is their effect upon the cell surface and the consequent disruption of cellular permeability. That this explanation may hold for the toxicity of the polypeptide polymyxin is suggested by the work of Newton (9, 10) and of Few and Schulman (3) who have shown that this substance combines with the ‘cell wall of certain bacter...
متن کاملChanges in the Permeability of Ascospores of Neurospora Tetrasperma during Germination
The respiration and germination of activated ascospores of Neurospora tetrasperma have been shown to be almost completely inhibited by concentrations of ethylene diaminetetraacetic acid (EDTA) as low as 0.0035 M. In contrast, however, dormant ascospores are insensitive to this chelating agent. At any time up to about 150 minutes after activation Ca(++) or Mg(++) can completely reverse this toxi...
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: Planta
سال: 1970
ISSN: 0032-0935,1432-2048
DOI: 10.1007/bf00385758