The system for transporting arginine into Neurospora conidia is described and shown to be consistent with the permease concept. The arginine system is shown to be separate from that which transports the aromatic and branched-chain neutral amino acids. Metabolic energy is necessary to achieve a concentration of arginine in the conidia higher than the external medium but not to maintain this concentration differential. A canavanine resistant mutant is shown to transport the basic amino acids at a reduced rate but the mutant transports other amino acids at the normal rate.

Arginine transport in Neurospora conidiaThis research note is available in Fungal Genetics Reports: https://newprairiepress.org/fgr/vol8/iss1/11 Roerr, W. B. and A. G. DeBusk. Arginine transportThe permeare concept of metabolite entry into cells was first in Neurosporo conidia.proposed by Rickenberg and co-workers in 1956 (Ann.Inst. Pasteur 9: 829). The concept of genetically controlled stereospecific transport procerses,coupledwith the amino acid growth inhibition doto now in the literature, rtimuloted experimerits in our laboratory on mnirm acid transport. The techniques used for the experiments reported here are similar to those previously reported for the characterization of the phenylalanine permeare system ( DeBurk and DeSusk 1965 B&him. Biophyr. Acta 104:139).