Veiga A, Arrabaça J D, Loureiro-Dias M C
Departamento Botânica e Engenharia Biológica, Instituto Superior de Agronomia, Lisbon, Portugal.
FEMS Microbiol Lett. 2000 Sep 1;190(1):93-7. doi: 10.1111/j.1574-6968.2000.tb09268.x.
In Pichia membranifaciens, cyanide-resistant respiration (CRR) sensitive to salicylhydroxamic acid emerged after forced aeration of starved cells for 4 h. Surveying a large number of species by this simple methodology, we found that CRR is very frequent among yeasts. Remarkably, considering our results together with previous data in the literature, CRR was present in 24 out of 28 non-fermentative or Crabtree-negative yeasts and absent in 10 out of 12 Crabtree-positive yeasts. We submit that, as alternatives to cytochromic respiration, yeasts developed two strategies: either aerobic fermentation in Crabtree-positive yeasts or CRR in non-fermentative or Crabtree-negative yeasts.
在膜醭毕赤酵母中,饥饿细胞强制通气4小时后出现了对水杨基羟肟酸敏感的抗氰呼吸(CRR)。通过这种简单的方法对大量物种进行调查,我们发现CRR在酵母中非常常见。值得注意的是,结合我们的结果和文献中的先前数据,28种非发酵型或克奈特阴性酵母中有24种存在CRR,而12种克奈特阳性酵母中有10种不存在CRR。我们认为,作为细胞色素呼吸的替代方式,酵母发展出了两种策略:克奈特阳性酵母中的有氧发酵或非发酵型或克奈特阴性酵母中的CRR。