Phytomonas and Other Trypanosomatid Parasites of Plants and Fruit

Camargo, Erney P.

doi:10.1016/s0065-308x(08)60148-7

Cited by 147 publications

(211 citation statements)

References 158 publications

Supporting

Mentioning

160

Contrasting

Unclassified

Order By: Relevance

“…Flagellates of the genera Trypanosoma and Leishmania found in haematophagous insects are capable of colonizing vertebrates, whereas members of the genus Phytomonas from phytophagous bugs can parasitize plants (Wallace, 1966;Vickerman, 1976;Podlipaev, 1990;Camargo, 1999). The remaining members of the family represent monoxenous insect parasites that are divided among several genera and numerous species.…”

Section: Introductionmentioning

confidence: 99%

Selective recovery of the cultivation-prone components from mixed trypanosomatid infections: a case of several novel species isolated from Neotropical Heteroptera

Yurchenko

Lukeš

Jirků

et al. 2009

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLO

View full text Add to dashboard Cite

Mixed trypanosomatid infections (a simultaneous presence of two or more parasites in the same host) have long been suspected to represent an obstacle for recovering cultures that would faithfully represent original species descriptions. However, without the means to directly compare the parasites in the host and in culture, this would remain just a possibility. Here we have used PCR-based genotyping of spliced leader RNA gene repeats to analyse several novel species of insect trypanosomatids isolated from heteropteran hosts and to compare them with the parasites that had been detected in the gut smears of the same hosts. We have found that, whereas the original infections were dominated by some blastocrithidia-like parasites, most of the respective axenic cultures contained novel species of Crithidia and Leptomonas. Therefore, we concluded that, in each case, this replacement was caused by differences in cultivation properties between the original predominant blastocrithidia and the less fastidious parasite that was later recovered in culture. The properties of the new organisms, including their morphology and ultrastructure, as well as their phylogenetic affinities within the family, were investigated and used to describe five novel species.

show abstract

Section: Introductionmentioning

confidence: 99%

Selective recovery of the cultivation-prone components from mixed trypanosomatid infections: a case of several novel species isolated from Neotropical Heteroptera

Yurchenko

Lukeš

Jirků

et al. 2009

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLO

View full text Add to dashboard Cite

show abstract

“…Since some of them share indistinguishable promastigote forms, various approaches have been proposed to classify plant trypanosomatids such as the production of monoclonal antibodies, the analysis of enzymatic activities and the use of molecular markers (Camargo 1999). In this context the determination of cell electrophoresis mobility associated to enzymatic treatments would be useful to help the identification of those parasites.…”

Section: Cellular Electrophoretic Mobilitymentioning

confidence: 99%

The surface charge of trypanosomatids

Souto-Padrón

2002

An. Acad. Bras. Ciênc.

View full text Add to dashboard Cite

The surface charge of trypanosomatids was evaluated by means of the binding of cationic particles, as visualized by electron microscopy and by direct measurements of the electrophoretic mobility of cells. The results obtained indicate that most of the trypanosomatids exhibit a negatively charged surface whose value is species specific and varies according to the developmental stages. Sialic acids associated with glycoproteins, glycolipids and phosphate groups are the major components responsible for the net negative surface charge of the trypanosomatids.

show abstract

“…The genus Phytomonas comprises plant flagellate trypanosomatids that are etiological agents of diseases affecting various fruits and plants, some of them causing great economical losses in agriculture. For instance, phloem-dwelling phytomonads cause acute and chronic yellowing of leaves in coffee plants, 'hartrot' in coconut palms and 'marchitez wilt' in oil palms, while the latex-associated P. françai is found associated with a disease known as ''chochamento das raıízes'', which means ''empty roots'', in the latex of cassava (Manihot esculenta Crantz); and the disease is characterized by poor root system development and general chlorosis of the aerial part of the plant [15,49]. However, phytomonads also parasitize lactiferous plants without any apparent pathogenicity [50].…”

Section: Introductionmentioning

confidence: 99%

Biological Roles of Peptidases in Trypanosomatids~!2009-11-26~!2010-02-15~!2010-03-18~!

Vermelho

Branquinha²,

d’Avila-Levy³

et al. 2010

TOPARAJ

View full text Add to dashboard Cite

Abstract:In this review, we report the recent developments in the characterization of peptidases and their possible biological functions in the Trypanosomatidae family. The focus will be on peptidases from Trypanosoma cruzi, Leishmania spp., African trypanosomes and plant and insect trypanosomatids. There are numerous events in parasite development where the involvement of peptidases has been established, and they will be approached in the present review. Also in this review we will discuss the central roles have been proposed for peptidases in diverse processes such as virulence, host cell interaction and invasion, catabolism of host proteins, differentiation, cell cycle progression and both stimulation and evasion of host immune responses.

show abstract

Phytomonas and Other Trypanosomatid Parasites of Plants and Fruit

Cited by 147 publications

References 158 publications

Selective recovery of the cultivation-prone components from mixed trypanosomatid infections: a case of several novel species isolated from Neotropical Heteroptera

Selective recovery of the cultivation-prone components from mixed trypanosomatid infections: a case of several novel species isolated from Neotropical Heteroptera

The surface charge of trypanosomatids

Biological Roles of Peptidases in Trypanosomatids~!2009-11-26~!2010-02-15~!2010-03-18~!

Contact Info

Product

Resources

About