Abstract
Plant trypanosomatids (Phytomonas spp) have been isolated from the crude sap of coconut tress and oil palm trees affected with Hartrot or Marchitex diseases in South America andAlpinia purpurata affected with wilt in the Caribbean. They are also commonly isolated from the fruits and latex of Euphorbiaceae or Asclepiadaceae. Thirty-fourPhytomonas stocks were studied by isoenzyme electrophoresis (11 loci) in order to investigate genetic variability in the intraphloemic group. Our results showed that variability in phloem restrictedPhytomonas is very high, and that Marchitez or Hartrot associated trypanosomatids are not readily separated into two distinct groups. Moreover, the two isolates fromAlpinia are very close to the other intraphloemic isolates. The results confirm the existence of several distinct groups, comprising of at least 2 groups of phloem restricted trypanosomatids, not related to the host species, 3 groups of latex trypanosomatids, and one group of fruit trypanosomatids.
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Muller, E., Gargani, D., Schaeffer, V. et al. Variability in the phloem restricted plant trypanosomes (Phytomonas spp) associated with wilts of cultivated crops. Eur J Plant Pathol 100, 425–434 (1994). https://doi.org/10.1007/BF01874809
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DOI: https://doi.org/10.1007/BF01874809