• Publications
  • Influence
Patterns of methionine and lysine biosynthesis in the Trypanosomatidae during growth.
  • H. N. Guttman
  • Biology, Medicine
  • The Journal of protozoology
  • 1 May 1967
TLDR
At least the terminal portion of the DAP pathway for lysine synthesis exists in these true animal cells, and statements about absence of ability to synthesizeLysine in animal cells and consequent evolutionary interpretations will therefore require revision. Expand
Acriflavin-Induced Loss of Kinetoplast Deoxyribonucleic Acid in Crithidia fasciculata (Culex pipiens Strain)
Acriflavin-Induced Loss of Kinetoplast Deoxyribonucleic Acid in Crithidia fasciculata (Culex pipiens Strain)
Catalase in insect trypanosomatids.
TLDR
Seven monoxenous Trypanosomatidae species, including Anopheles strain, show reduced catalase activity at elevated temperature that is of borderline significance and Catalase as a phylogenetic marker is discussed. Expand
First defined media for leptomonas spp. from insects.
  • H. N. Guttman
  • Biology, Medicine
  • The Journal of protozoology
  • 1 August 1966
TLDR
All trypanosomatids thus far studied require calcium pantothenate but L. collosoma has an especially large requirement and L. mirabilis but not L. sp. Expand
EXPERIMENTAL GLIMPSES AT THE LOWER TRYPANOSOMATIDAE.
  • H. N. Guttman
  • Biology, Medicine
  • Experimental parasitology
  • 1 August 1963
TLDR
Some aspects of researches involving primarily the genus Crithidia have been reviewed, including early nutritional studies (prior to 1950) and experimental clues to evolution; morphogenesis; and the problem of “Strigomonas” oncopelti. Expand
‘Cure’ of Crithidia (Strigomonas) oncopelti of its Bacterial Endosymbiote
TLDR
C. oncopelti had strikingly simpler nutritional requirements than the other haemoflagellates, and appeared to require only four rather than twelve or more amino-acids as did other members of the family. Expand
Passive transfer of learned dark and step-down avoidance
Passive chemical transfer of two specific learned tasks, (1) dark avoidance and (2) step-down avoidance, was demonstrated by IP injection into mice of purified RNA-free peptides isolated from ratExpand
Immunological Relationships Among the Lower Trypanosomatidae
SUMMARY: By the use of Freund's complete adjuvant, high-titre agglutinating antisera were prepared to nine trypanosomatids: Crithidia fasciculata (Anopheles strain), C. fasciculata (Culex strain,Expand
Synthetic scotophobin-mediated passive transfer of dark avoidance.
TLDR
A chemical rather than an electrical mode of long term storage of learned behavioural information and the inconsistency of activity of RNA fractions prepared by different investigators hinted that: (a) RNA might be acting as a carrier for the true active compound and (b) the binding between RNA and such an active compound might be labile. Expand
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