Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.1999.290.295Penicillium albicans (Alkalosensitive) and Verticillium lateritium (Facultative Alkalophile)]]>EllilAmany H.A.Abo GeweelyNeveen S.I. 2199922High alkalinity inhibited sugar utilization by the alkalosensitive fungus (P. albicans) and increased the polysaccharide content in its fungal mats. The total amino-N content decreased in the culture of P. albicans, whereas its quantity increased in the biomass with progressive alkalinity. Alkalinity inhibited nitrogen uptake and protein synthesis leading to a corresponding decline in growth, and hence apparent alkalosensitivity. High alkalinity, caused enhancement of sugar uptake by the facultative alkolophile V. lateritium associated with higher reducing sugar contents and decreased polysaccharide accumulation in mycelial mats. The amino-N content increased in the culture medium of V. lateritium and decreased in the biomass with pH elevation. The utilization of soluble nitrogen increased, accompanied by increased protein synthesis, leading to maximum growth at higher pHs, and hence apparent alkalophilicity. The sodium ion content in the medium of the alkalosensitive fungus decreased at high pHs associated with respective increase in the biomasses. Oppositely, in the alkalophilic fungus, the sodium ion content increased in culture and decreased in biomasses with increased alkalinity, indicating an important role played by this ion. No clear relation could be obtained between phosphorus content in cultures or biomasses of the two tested fungi and alkalophilicity.]]>Burton, J.O. and J.P. Riley,19541954pp: 370-376pp: 370-376Chaney, A.L. and E.P. Marbach,19628130132Chislett, M.E. and D.J. Kushner,1961Bacillus circulans capable of growing under highly alkaline conditions.]]>24187190Clark, J.M.,1964pp: 12, 13, 32, 135pp: 12, 13, 32, 135Dai, F.M., K.R. Wang and J.Y. Lu,1991Verticillium dahlia from soil.]]>77982Fawcett, J.K. and J.E. Scott,196013156159Goto, S., R. Aono, J. Sugiyama and K. Horikoshi,198122429439Guffanti, A.A., R. Blanco, R.A. Benenson and T.A. Krulwich,1980Bacillus firmus.]]>1197986Guffanti, A.A. and D.B. Hicks,1991Bacillus species in batch cultures and growth in a chemostat at pH 10.5.]]>13723752379Horikoshi, K. and T. Akiba,1982Pages: 213Pages: 213Khodair, A.A., A.S. Ramadani and A.M. Aggab,19919119132Kimura, T. and K. Horikoshi,19885410661067Kitada, M. and K. Horikoshi,1979Bacillus species.]]>4322732277Koyama, N.,1989+-dependence of the stability under alkaline conditions of the membrane of an alkalophilic Bacillus.]]>61710Koyama, N., A. Kiyomiya and Y. Nosoh,1976+-dependent uptake of amino acids by an alkalophilic Bacillus.]]>727778Krulwich, T.A.,19821982pp: 75-79pp: 75-79Krulwich, T.A., K.G. Mandel, R.F. Bornstein and A.A. Guffanti,1979Bacillus alcalophilus lacks the Na+ H+ antiporter.]]>915862Macdonald, A.M.G. and P. Sirichanya,196914199206Mandel, K.G., A.A. Guffanti and T.A. Krulwich,1980Bacillus alcalophilus.]]>25573917396Matsushima, K., I. Mori, N. Ito and K. Shimada,198054875876Miyashita, K., Y. Mikami and T. Arai,1984Nocardiopsis dassonvillei subsp. prasina subsp. nov., isolated from soil.]]>34405409Naguib, M.I.,1963161518Naguib, M.I.,19694315Neveen, S.I.G.,19971997Nowak, A. and K. Hurle,1990Verticillium sp. on concentration and pH of the growth medium.]]>12367371Ohta, K., A. Kiyomiya, N. Koyama and Y. Nosoh,1975Bacillus.]]>86259266Okada, G., Y. Niimura, T. Sakata, T. Uchimura, N. Ohara, H. Suzuki and M. Kozaki,1993Acremonium alcalophilum, a new alkalophilic cellulytic hyphomycete.]]>34171185Oshima, A., T. Onoda and K. Nishigami,1987Bacilius ASSC-2.]]>21105114Russell, J.A.,1944156467468Sato, M., T. Beppu and K. Arima,19834720192027Schuldiner, S. and H. Fishkes,1978Escherichia coli.]]>17706711Takahara, Y., Y. Takasaki and O. Tanabe,196139183187, (In Japanese)Thompson, D.P., L. Metevia and T. Vessel,1993Fusarium and Penicillium.]]>56134138Wheeler, K.A., B.F. Hurdman and J.I. Pitt,1991Aspergillus, Penicillium and Fusarium.]]>12141149