A note on parasitism of the phytonematodes Meloidogyne sp. and Heterodera fici by Pasteuria penetrans

1988 ◽  
Vol 66 (12) ◽  
pp. 2852-2854 ◽  
Author(s):  
Isabel M. de O. Abrantes ◽  
Nicola Vovlas
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Pasteuria Penetrans ◽  
New Host ◽  
Transmission Electron ◽  
Distribution Record ◽  
Plant Parasitic ◽  
Meloidogyne Sp

The endoparasite of several phytonematodes, Pasteuria penetrans, was found to parasitize juveniles and males of a Meloidogyne sp. in Portugal and juveniles of Heterodera fici in Italy. The infectivity on Meloidogyne males and H. fici juveniles is illustrated with light, scanning, and transmission electron microscopy. The great number of spores found attached on both genera characterizes these nematodes as potential hosts, and establishes a new host and distribution record for this antagonist of plant-parasitic nematodes.

scholarly journals Attachment tests of Pasteuria penetrans to the cuticle of plant and animal parasitic nematodes, free living nematodes and srf mutants of Caenorhabditis elegans

1999 ◽  
Vol 73 (1) ◽  
pp. 67-71 ◽  
Author(s):  
P. Mendoza de Gives ◽  
K.G. Davies ◽  
M. Morgan ◽  
J.M. Behnke
Keyword(s):  
Caenorhabditis Elegans ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Pasteuria Penetrans ◽  
Cyst Nematodes ◽  
Free Living ◽  
Root Knot Nematodes ◽  
C Elegans ◽  
Spore Attachment ◽  
Plant Parasitic

Populations of Pasteuria penetrans isolated from root-knot nematodes (Meloidogyne spp.) and cyst nematodes (Heterodera spp.) were tested for their ability to adhere to a limited selection of sheathed and exsheathed animal parasitic nematodes, free living nematodes, including Caenorhabditis elegans wild type and several srf mutants, and plant parasitic nematodes. The attachment of spores of Pasteuria was restricted and no spores were observed adhering to any of the animal parasitic nematodes either with or without their sheath or to any of the free living nematodes including C. elegans and the srf mutants. All spore attachment was restricted to plant parasitic nematodes; however, spores isolated from cyst nematodes showed the ability to adhere to other genera of plant parasitic nematodes which was not the case with spores isolated from root-knot nematodes. The results are discussed in relationship to cuticular heterogeneity.

scholarly journals Isolation and Identification of Ten Genera of Plant Parasitic Nematodes

1970 ◽  
Vol 45 (3) ◽  
pp. 267-270 ◽  
Author(s):  
MM Rahman ◽  
IH Mian
Keyword(s):  
Plant Pathogens ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Root Knot Nematode ◽  
Isolation And Identification ◽  
Esophageal Lumen ◽  
Plant Samples ◽  
Basal Bulb ◽  
Plant Parasitic ◽  
Meloidogyne Sp

A study was undertaken to isolate and identify different genera of plant parasitic nematodes from soil and plant samples during July to October 2007 in the Laboratory of Plant Pathology at Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh. Altogether 10 (Ten) nematodes belonging to 10 genera were isolated and identified from various soil and plant samples. For identification of plant parasitic nematodes, stylet and other anatomical structures such as Dorsal esophageal Gland Orifice (DGO), Esophageal lumen, Median bulb, Basal bulb, Intestine, Reproductive structures (vagina and its position, specula ) Tail types etc. were used as main criteria. Among 10 (ten) different identified genera of nematodes (Criconemoids sp., Hemicriconemoides sp., Tylenchus sp., Ditylenchus sp., Tylenchorhynchus sp., Hoplolaimus sp., Helicotylenchus sp., Pratylenchus sp., Meloidogyne sp., Radinaphelenchus sp.) maximum nematodes were under the family of Tylenchidae. The abundance numbers of plant parasitic nematodes were found as the Ditylenchus sp.(Ufra nematode) and Meloidogyne sp.(Root knot nematode) which were the serious plant pathogens causing ufra in rice and root knot in different crops respectively, so far recorded in Bangladesh. Key words: Isolation; Identification; Plant parasitic nematodes. DOI: 10.3329/bjsir.v45i3.6536Bangladesh J. Sci. Ind. Res. 45(3), 267-270, 2010

scholarly journals Plant parasitic nematodes associated with selected agricultural soils in Kwara State, Nigeria

Agrosearch ◽  
2021 ◽  
Vol 20 (2) ◽  
pp. 56-66
Author(s):  
O. Ahmed ◽  
N.B. Izuogu ◽  
H.S. Baba ◽  
N.A. Kalejaiye
Keyword(s):  
Parasitic Nematode ◽  
Agricultural Soils ◽  
Parasitic Nematodes ◽  
International Institute ◽  
Plant Parasitic Nematodes ◽  
Ecological Zones ◽  
Risk Of Disease ◽  
Plant Parasitic ◽  
Meloidogyne Sp ◽  
Agro Ecological Zones

Plant parasitic nematodes have caused huge yield loss on all agricultural crops. Knowledge of the type and quantity of these pathogens in soils is an indication of the risk of disease development in the crops grown on the soils. This study was carried out to determine the plant parasitic nematode composition of selected agricultural soils in Kwara State, Nigeria. Three sample locations from each of the forest and savannah agro-ecological zones of the state were selected for the study. Soil samples were taken from the rhizosphere of five crops commonly grown in each of the six sample locations (Celosia sp. Cowpea, Maize, Soybean and Teak) using soil auger. Nematodes were extracted using the modified Bearmann technique and the nematodes were identified using standard identification key. The identity of the nematodes was confirmed at the International Institute for Tropical Agriculture (IITA), Ibadan. A total of six nematode genera namely, Meloidogyne sp., Helicotylenchus sp., Scutellonema sp., Pratylenchus sp., Rotylenchus sp., and Tylenchus sp. were isolated with Meloidogyne sp. having the highest frequency of occurrence in most of the sampled locations and crops. The implication of nematodes in agricultural soils is discussed.

Isolation of Litylenchus coprosma from Coprosma macrocarpa, a new host and distribution in New Zealand

Zootaxa ◽  
2019 ◽  
Vol 4555 (2) ◽  
pp. 287
Author(s):  
YU MEI XU ◽  
ZENG QI ZHAO ◽  
BRETT J. R. ALEXANDER ◽  
DONGMEI LI
Keyword(s):  
New Zealand ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
New Host ◽  
Detection And Identification ◽  
Plant Parasitic

Coprosma macrocarpa, known as the large-seeded coprosma or coastal karamu, is a shrub endemic to New Zealand. To our knowledge, no reports of plant parasitic nematodes associated with C. macrocarpa have been reported. Here we report the detection and identification of the nematode, Litylenchus coprosma, extracted from C. macrocarpa in Otata Island. 

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