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Leishmania (Viannia) braziliensis growth in vitro culture relies more on folic acid availability than Leihsmania (Leishmania) amazonensis

DOI: 10.1590/S0074-02762005000300017

Keywords: leishmania (viannia) braziliensis, leishmania (leishmania) amazonensis, replication rates, in vitro culture.

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we compared the in vitro growth of promastigotes from two leishmania species in tc-100 and schneider media. leishmania (leishmania) amazonensis replication rates were similar in both tissue culture media and reached maximum rates by 48 h. in contrast leishmania (viannia) braziliensis growth was significantly greater in tc-100 but maximum rates were achieved by 96 h. folic acid appears to be the limiting factor and supplementation of schneider media with this nutrient improved l. (v.) braziliensis replication rates and decreased the time of maximum replication to 48 h.


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