Title
In vitro promastigote fitness of putative **Leishmania (Viannia) braziliensis/Leishmania (Viannia) peruviana** hybrids In vitro promastigote fitness of putative **Leishmania (Viannia) braziliensis/Leishmania (Viannia) peruviana** hybrids
Author
Faculty/Department
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences . Biomedical Sciences
Publication type
article
Publication
Basel ,
Subject
Human medicine
Source (journal)
Acta tropica. - Basel
Volume/pages
72(1999) :1 , p. 99-110
ISSN
0001-706X
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
In order to initiate studies on the phenotypic properties of hybrids vs. their putative parents, the in vitro growth behaviour of promastigotes was compared for 15 stocks characterised as Leishmania (Viannia) braziliensis, Leishmania (Viannia) peruviana and putative hybrids (isolated from the Eastern Andean valley of Huanuco, Peru). Five sets of three stocks, each set including a L.(V.)braziliensis, a L.(V.)peruviana and a putative hybrid, were constituted randomly and counted daily close to isolation from man (ten to 18 subcultures). Hybrids and L.(V.)peruviana presented similar growth characteristics, and they displayed a growth capacity (growth rate and cell density at stationary phase) significantly lower than the one of L.(V.)braziliensis. Following prolonged in vitro maintenance of one of the sets, the hybrid kept its lower growth capacity. The contrast between the difficulty to grow in vitro these putative hybrids, and their high isolation rate from natural populations is discussed.