Pdf genetic variability of rotylenchulus reniformis. Rotylenchulus reniformis linford and oliveira, 1940. Rotylenchulus reniformis nematodepr3 was specifically isolated from soil samples collected in the southeastern united states ref. Transgenic resistance to the nematode rotylenchulus. Pigweed, prickly sida, florida pusley, cutleaf eveningprimrose, yellow nutsedge, and common cocklebur were poor or nonhosts for r. Rotylenchulus reniformis management in cotton with crop rotation1 r. This nematode has a wide host range, infecting many species of plants around the world. This summary focuses on the affects of the reniform nematode on papaya. Population variability of rotylenchulus reniformis in.
Management of reniform nematode, rotylenchulus reniformis. Microsatellites reveal genetic diversity in rotylenchulus reniformis. Relative host status of selected weeds and crops for. Florida department of agriculture and consumer services, division of plant industry, gainesville. Nematode problems in sweet potato and their management. New sources of resistance to the reniform rotylenchulus reniformis and rootknot meloidogyne incognita nematode in upland gossypium hirsutum l.
Rotylenchulus reniformis below plow depth suppresses cotton yield and root growth a. Aldicarb, which is the most used nematicide in cotton production, will be retired from the market in 2018 by the epa. Molecular identification of rotylenchulus reniformis nematoda by using its region of rdna swetha sudha n, ravindar g, nagaraja rao p and geeta rajalingam department of zoology, osmania university, hyderabad07, telangana, india introduction reniform nematode rotylenchulus reniformis is widely distributed in all cotton gossypium spp. Rotylenchulus is a genus of nematodes in the family hoplolaimidae species are known to infest a wide range of plants including sunflowers and grape species. World distribution of rotylenchulus reniformis rotyre. This nematode is mostly known for its damage to cotton but tomato is also wellwithin its vast host range that includes 314 plant species across 77 plant families. Nematodes sometimes follow roots to considerable depths 30 to 150 cm or more. Department of agriculture, specialty crop research initiative, award number 20165118125404 as well as the florida department of. Biological control of rotylenchulus reniformis infecting tomato by certain natural plant products. Rotylenchulus reniformis management in cotton with. Responses of the plant parasitic nematodes rotylenchulus. Mar 21, 2016 rotylenchulus reniformis has one of the shortest life cycles amongst sedentary ppns robinson et al.
Morphological and molecular characterisation of one new and. However, nematode soil samples recently collected have contained economically. Shukla and jayant bhatt department of plant pathology, jawaharlal nehru krishi vishwa vidyalaya, jabalpur 482004, india abstract rotylenchulus reniforrnis is semiendoparasite attacking therootsof pulse andvegetable crops. It reduced parasite density and fecundity to 654% and 318% respectively. First report of the reniform nematode rotylenchulus reniformis on cotton in virginia. Rotylenchulus reniformis on greenhousegrown foliage plants. Southeast asia, the carribean, mexico, japan, the middle east, south pacific, italy, spain, china and the far east.
The reniform nematode, rotylenchulus reniformis, is a sedentary semiendoparasitic species with a host range that encompasses more than 77 plant families. It has been reported in tropical and subtropical west and central africa. However, hazards resulting from synthetic nematicides have encouraged scientists to search. The expressed parasitism genes in the reniform nematode rotylenchulus reniformis 781.
Articles from journal of nematology are provided here courtesy of society of nematologists. Nematode of this photograph was extracted from pineapple rhizosphere, observed under a phase contrast, inverted microscope zeiss, germany and photographed by nikon digital camera d 3200 nikon corporation. Histology of the feeding site of rotylenchulus reniformis in nematologica. Rotylenchulus reniformis is largely distributed in tropical, subtropical and warm temperate zones in south america, north america, the caribbean basin, africa, southern europe, the middle east, asia, australia, and the pacific ayala and ramirez 1964. Rotylenchulus reniformis the nematodes were found in large numbers by verma and prasad 1969 but nothing is known on yield loss and control mohandas 1994. Reniform nematode, rotylenchulus reniformis linford and. Pdf analysis of the glycine max role of syntaxin syp22. The level of resistance to the reniform nematode rotylenchulus reniformis conferred on arabidopsis thaliana by transgenic expression of proteinase inhibitors pi was studied over 40 days of infection.
Pdf intraspecific variability of rotylenchulus reniformis from. Rotylenchulus reniformis is among the most economically damaging plant pathogens in the united states. Identification of rotylenchulus reniformis resistant glycine. Rotation to resistant or poor host crops is a prescribed method for management of reniform nematode. Rotylenchulus reniformis is the primary economical nematode pest of cot ton gossypium hirsutum in the southern states of alabama, louisiana, and mississippi.
It feeds on pericycle and complete its life cycle within 22. Biocontrol studies of rotylenchulus reniformis in cotton. Sterile culture of rotylenchulus reniformis on tomato root. A cysteine pi differing from oci expressed in rice seed by one amino acid oci. Interaction between meloidogyne incognita, rotylenchulus reniformis and tylenchorhynchus brassicae on tomato. Save map as png save map as svg save list as excel file save list as csv file. Rotylenchulus reniformis was repeatedly propagated in sterile excised tomato roots growing on modified whites medium with gellan gum as the support. Rotylenchulus reniformis weasam a r aljaafri 1, fadhal a alfadhal 2, ameera naji hussei n al jouburi 3 1,2 department of plant protection, faculty of agriculture, university of kufa, iraq. Rotylenchulus reniformis is widely distributed in many tropical and subtropical regions of the world. If the inline pdf is not rendering correctly, you can download the pdf file here.
Its specific epithet, reniformis, was inspired by the kidney shape of the adult female. Oct 27, 2017 two azolla species, azolla caroliniana and a. Pdf analysis of the glycine max role of syntaxin syp22 in. Rotylenchulus reniformis population levels and yield of a subsequent cotton crop. Rotylenchulus reniformis rotyreoverview eppo global database. Pathogenicity of the nematodes rotylenchulus reniformis, helicotylenchus dihystera, and tylenchorhynchus claytoni to shade tobacco. Pdf hosts and nonhosts of reniform nematode, rotylenchulus. The level of resistance to the reniform nematode rotylenchulus reniformis. Reniform nematode rotylenchulus reniformis rotylenchulus reniformis is a major yieldlimiting pest of multiple crops in the tropics and subtropics, including upland cotton gossypium hirsutum.
Rotylenchulus reniformisis the most important pathogen cotton in the southeastern of united states. Rotylenchulus reniformis management in cotton with crop rotation. It was first observed on the roots of cowpea in hawaii, and was described as new species and new genus in 1940. Leach, megan, population variability of rotylenchulus reniformis in cotton agroecosystems 2010. Pdf biological control of rotylenchulus reniformis infecting tomato. The reniform nematode rotylenchulus reniformis is found throughout the southern united states, from texas to the east coast. Identification of rotylenchulus reniformis resistant. This nematode parasitizes more than 300 plant species including two major crops in the region, cotton gossypium hirsutum and soybean glycine max robinson et al. Screening cucurbit rootstocks for resistance to meloidogyne. Therefore, management of this nematode has received attention to reduce damage. Sixtyone wild and domestic soybean lines were evaluated in. Reniform nematode rotylenchulus reniformis pdf is not rendering correctly, you can download the pdf file here.
New sources of resistance to the reniform rotylenchulus. Oneyear crop rotations with corn or highly resistant soybean were evaluated at four locations for their effect on rotylenchulus reniformis population levels and yield of a subsequent cotton crop. Oneyear crop rotations with corn or highly resistant soybean were evaluated at four locations for their effect on rotylenchulus reniformis population levels and yield of a subsequent. The reniform nematode rotylenchulus reniformis is the primary economical nematode pest of cotton gossypium hirisutum in the southern states of alabama, louisiana, and mississippi. Pdf reniform nematode rotylenchulus reniformis is a major pest of cotton in the southeastern united states. Rotylenchulus reniformis has one of the shortest life cycles amongst sedentary ppns robinson et al. Rotylenchulus reniformis host status evaluations of common. An increase in the incidence and prevalence of the nematode in the united states has been reported over the last two decades. Weed hosts for rotylenchulus reniformis in cotton fields. For more information on other hosts, please see the general summary on rotylenchulus reniformis. Rotylenchulus reniformis, the reniform nematode, is a species of parasitic nematode of plants with a worldwide distribution in the tropical and subtropical regions. Damage to cotton by rotylenchulus reniformis below plow depth was evaluated in a sandy clay loam soil at weslaco, texas. The substrates were applied at the rates of 25 and 50 gm of dry material of each species pot.
The life history of the reniform nematode, rotylenchulus reniformis, has been studied by a number of workers. Rotylenchulus reniformis, reniform nematode, is a highly variable species and an economically important pest in many cotton fields across the southeast. The expressed parasitism genes in the reniform nematode. Rotylenchulus reniformis, reniform nematode, is a highly variable species and an economically. The full text of this article is available as a pdf 382k. Transgenic resistance to the nematode rotylenchulus reniformis. Survey of current distribution of rotylenchulus reniformis in the. Four nematicide aldicarb regimes were included at two of the locations, and.
Nematode effector proteins containing plantligand motifs similar to clavata3esr cle peptides have been identified in the heterodera, globodera, and meloidogyne genera of sedentary endoparasites. General information about rotylenchulus reniformis rotyre eppo global database. A pot experiment was carried out under cage house condition for management of r. Responses of the plant parasitic nematodes rotylenchulus reniformis, anguina agrostis and meloidogyne javanica to chemical attractants volume 91 issue 1 d. Identification of resistance to reniform nematode rotylenchulus reniformis is the first step in developing resistant soybean glycine max cultivars that will benefit growers in the midsouth region of the united states. Thereby, this is the time to introduce biocontrol agents against r. Contributor notes this manuscript is based on work that is supported by the national institute of food and agriculture, u.
Rotylenchulus reniformis nematodepr3 attach to rotylenchulus species nematodes at all life stages, except eggs ref. Relative response of four tomato species to rotylenchulus. There are now ten species classified in the genus, but r. Population variability of rotylenchulus reniformis in cotton. If the inline pdf is not rendering correctly, you can download the pdf file. Rotylenchulus reniformis numbers from cotton increased p. Rotylenchulus reniformis numbers were reduced only 62 % in plots planted with a.
Gellan gum provided an optically clear support medium that could be liquified by adding 5 mm disodium ethylenediaminetetraacetate edta to facilitate nematode extraction. Pathogenicity of the nematodes rotylenchulus reniformis. Distribution is irregular and is greatest in or around roots of susceptible plants. Reniformresistant cotton varieties are urgently needed, but genes that confer resistance to reniform nematode have not been identified in any species. Reniform nematode rotylenchulus reniformis is widely distributed in all cotton gossypium spp. Rotylenchulus reniformis below plow depth suppresses cotton. Nematode of this photograph was extracted from pineapple rhizosphere, observed under a phase contrast, inverted microscope zeiss, germany and photographed by nikon digital camera d. Sequence and spatiotemporal expression analysis of cle. Rotylenchulus reniformis, reniform nematode, is a polyphagous pest commonly found parasitizing cotton in the southeastern. Rotylenchulus reniformis management in cotton with crop. Interaction between meloidogyne incognita, rotylenchulus. In reniform nemotode infection, the growth of cotton roots and shoots was reduced at level of more than 8 and 1 nematode per g soil, respectively. An intracellular tube associated with feeding by rotylenchulus reniformis on cowpea root in. Helicotylenchus, meloidogyne, paratylenchus, pratylenchus, rotylenchulus y xiphinema.