Nitrate induces enzymes of the mannitol cycle and suppresses versicolorin synthesis inAspergillus parasiticus

1989 ◽  
Vol 107 (2-3) ◽  
pp. 131-137 ◽  
Author(s):  
Walter G. Niehaus ◽  
Weiping Jiang
Keyword(s):  
Mannitol Cycle

scholarly journals Spatial and Developmental Differentiation of Mannitol Dehydrogenase and Mannitol-1-Phosphate Dehydrogenase in Aspergillus niger

2010 ◽  
Vol 9 (9) ◽  
pp. 1398-1402 ◽  
Author(s):  
Guillermo Aguilar-Osorio ◽  
Patricia A. vanKuyk ◽  
Bernhard Seiboth ◽  
Dirk Blom ◽  
Peter S. Solomon ◽  
...  
Keyword(s):  
Aspergillus Niger ◽  
Fluorescent Protein ◽  
Northern Analysis ◽  
Expression Data ◽  
Mannitol Dehydrogenase ◽  
Content Type ◽  
Green Fluorescent ◽  
Developmental Differentiation ◽  
Encoding Genes ◽  
Mannitol Cycle

ABSTRACT The presence of a mannitol cycle in fungi has been subject to discussion for many years. Recent studies have found no evidence for the presence of this cycle and its putative role in regenerating NADPH. However, all enzymes of the cycle could be measured in cultures of Aspergillus niger. In this study we have analyzed the localization of two enzymes from the pathway, mannitol dehydrogenase and mannitol-1-phosphate dehydrogenase, and the expression of their encoding genes in nonsporulating and sporulating cultures of A. niger. Northern analysis demonstrated that mpdA was expressed in both sporulating and nonsporulating mycelia, while expression of mtdA was expressed only in sporulating mycelium. More detailed studies using green fluorescent protein and dTomato fused to the promoters of mtdA and mpdA, respectively, demonstrated that expression of mpdA occurs in vegetative hyphae while mtdA expression occurs in conidiospores. Activity assays for MtdA and MpdA confirmed the expression data, indicating that streaming of these proteins is not likely to occur. These results confirm the absence of the putative mannitol cycle in A. niger as two of the enzymes of the cycle are not present in the same part of A. niger colonies. The results also demonstrate the existence of spore-specific genes and enzymes in A. niger.

Nitrophenide (Megasul[Trade Mark Sign]) Blocks Eimeria tenella Development by Inhibiting the Mannitol Cycle Enzyme Mannitol-1-Phosphate Dehydrogenase

2001 ◽  
Vol 87 (6) ◽  
pp. 1441
Author(s):  
John J. Allocco ◽  
Bakela Nare ◽  
Robert W. Myers ◽  
Marc Feiglin ◽  
Dennis M. Schmatz ◽  
...  
Keyword(s):  
Trade Mark ◽  
Eimeria Tenella ◽  
Cycle Enzyme ◽  
Mannitol Cycle

scholarly journals The mannitol cycle in Pleurotus ostreatus (Florida)

2004 ◽  
Vol 236 (2) ◽  
pp. 307-311 ◽  
Author(s):  
Tapas Kumar Chakraborty ◽  
Debabrata Basu ◽  
Nirmalendu Das ◽  
Subhabrata Sengupta ◽  
Mina Mukherjee
Keyword(s):  
Pleurotus Ostreatus ◽  
Mannitol Cycle

NITROPHENIDE (MEGASUL™) BLOCKS EIMERIA TENELLA DEVELOPMENT BY INHIBITING THE MANNITOL CYCLE ENZYME MANNITOL-1-PHOSPHATE DEHYDROGENASE

2001 ◽  
Vol 87 (6) ◽  
pp. 1441-1448
Author(s):  
John J. Allocco ◽  
Bakela Nare ◽  
Robert W. Myers ◽  
Marc Feiglin ◽  
Dennis M. Schmatz ◽  
...  
Keyword(s):  
Eimeria Tenella ◽  
Cycle Enzyme ◽  
Mannitol Cycle

scholarly journals Enzyme Activities of the Mannitol Cycle and Some Connected Pathways in Alternaria alternata, with Comments on the Regulation of the Cycle.

1979 ◽  
Vol 33b ◽  
pp. 239-243 ◽  
Author(s):  
Karl Hult ◽  
Sten Gatenbeck ◽  
Olof Wennerström ◽  
K. Lempert ◽  
J. Møller ◽  
...  
Keyword(s):  
Alternaria Alternata ◽  
Enzyme Activities ◽  
Mannitol Cycle
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