منابع مشابه
Aspergillus nidulans swo mutants show defects in polarity establishment, polarity maintenance and hyphal morphogenesis.
When the spores of filamentous fungi break dormancy, they grow isotropically, adding cell wall material uniformly in every direction. Later they switch to polarized growth, with new material added to the tip of an emerging germ tube. To identify genes involved in the synthesis and localization of cell wall material in filamentous fungi, we screened a collection of temperature-sensitive Aspergil...
متن کاملThe Physiological Basis of Morphological Polarity in Regeneration. I
1. In Bryophyllum calycinum two apical leaves suppress the shoot formation in all the dormant buds situated basally from the leaf; one apical leaf suppresses the shoot formation in the basal buds situated in the same half of the stem where the leaf is, and, if one-half of the petiole of such a leaf is removed, the growth of basal buds in one quadrant of the stem is suppressed. 2. This inhibitor...
متن کاملPhysiological Polarity and Symmetry in Relation to Heredity.
PAGE INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336 The problem of individual pattern and development, . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337 Are polarity and symmetry inherent properties or physiological reactions of specific protoplasms?. . . . . . . . . . . . . . . . . . . . . . . . ...
متن کاملThe Physiological Basis of Morphological Polarity in Regeneration. Ii
1. The experiments show that the mass of air roots formed in a stem increases with the mass of the leaf attached to the stem, though it has not been possible to establish an exact mathematical relation between the two masses, owing to unavoidable sources of error. 2. Darkened leaves do not increase the mass of roots formed. 3. In stems suspended horizontally air roots appear on the lower side o...
متن کاملCell cycle progression and cell polarity require sphingolipid biosynthesis in Aspergillus nidulans.
Sphingolipids are major components of the plasma membrane of eukaryotic cells and were once thought of merely as structural components of the membrane. We have investigated effects of inhibiting sphingolipid biosynthesis, both in germinating spores and growing hyphae of Aspergillus nidulans. In germinating spores, genetic or pharmacological inactivation of inositol phosphorylceramide (IPC) synt...
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ژورنال
عنوان ژورنال: Nature
سال: 1935
ISSN: 0028-0836,1476-4687
DOI: 10.1038/135833b0