Isolation, identification and confirmation of Foliar nematode, Aphelenchoides besseyi association with Dendrobium Orchid under Polyhouse condition

2019 ◽  
Vol 27 (1) ◽  
pp. 126
Author(s):  
N. Das ◽  
J.K. Mahalik
Keyword(s):  
Aphelenchoides Besseyi ◽  
Foliar Nematode

scholarly journals Foliar Nematode Aphelenchoides spp. (Nematoda: Aphelenchida: Aphelenchoididae)

EDIS ◽  
2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Lindsay Wheeler ◽  
William Talmadge Crow
Keyword(s):  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Plant Feeding ◽  
Plant Parasites ◽  
Aphelenchoides Besseyi ◽  
The Common ◽  
Aphelenchoides Fragariae ◽  
Foliar Nematode ◽  
Plant Parasitic ◽  
Aphelenchoides Ritzemabosi

There are nematodes of several genera that feed on plant stems and foliage, including Aphelenchoides, Bursaphelenchus, Anguina, Ditylenchus and Litylenchus. Herein, we apply the common name “foliar nematode” specifically to plant-feeding nematodes in the genus Aphelechoides, specifically Aphelenchoides besseyi, Aphelenchoides fragariae, and Aphelenchoides ritzemabosi. While most members of Aphelenchoides are fungivorous (feed on fungi), these three species have populations that are facultative plant-parasites that can feed on live plant tissue. Ten other species of Aphelenchoides also are recognized as facultative plant-parasites, but these are not as commonly encountered or as economically significant as the aforementioned species. Unlike most plant-parasitic nematodes, foliar nematodes can infest the aerial portions of plants rather than dwelling strictly in soil and plant roots. Damage from their feeding can reduce yield in food crops and ruin the appearance of ornamentals.https://edis.ifas.ufl.edu/in1279

scholarly journals Study on Relative Preferences of Foliar Nematode, Aphelenchoides besseyi Christie between Rice and Tuberose on Biochemical Factors

2017 ◽  
Vol 6 (10) ◽  
pp. 1648-1656
Author(s):  
Nagulapalli Sneha Latha ◽  
Ajoy Kumar Mukhopadhyay ◽  
Nagamandla Ramya Sri ◽  
Nihal Ravindranath ◽  
Dhiren Chatterji
Keyword(s):  
Aphelenchoides Besseyi ◽  
Foliar Nematode ◽  
Relative Preferences

scholarly journals Management of Aphelenchoides besseyi infecting Polianthes tuberosa in West Bengal, India

2020 ◽  
Vol 41 (6) ◽  
pp. 1774-1780
Author(s):  
V. Kadam ◽  
◽  
R.K. Patidar ◽  
R. Thangjam ◽  
M. Pathak ◽  
...  
Keyword(s):  
Plant Growth ◽  
West Bengal ◽  
Growth Parameters ◽  
Infected Plant ◽  
Germination Percentage ◽  
Nematode Population ◽  
Stunted Growth ◽  
Aphelenchoides Besseyi ◽  
Untreated Check ◽  
Foliar Nematode

Aim: The study was conducted for management of foliar nematode, Aphelenchoides besseyi through different treatment modules in tuberose, Polianthes tuberose. Methodology: A field experiment was carried out with seven treatment modules with four replications to assess the efficacy of treatment modules to manage the foliar nematode in tuberose variety, Calcutta Double. Observations on germination percentage and spike emergence as well as initial and final nematode population in bulbs and plant growth parameters were analysed.? Results: The experiment was conducted with naturally infected plant of tuberose bearing an initial nematode population per five bulbs. The per cent change over treated bulb was found significantly different from the control. The experiment revealed that the germination percent of tuberose bulbs increased under the treatment modules compared to untreated control. Emergence of 55 per cent and 100 per cent spike in treatment modules was earlier than the untreated check. Plant growth parameters were superior in treatment modules as compared to control. Symptoms like stunted growth of plants prickle like structures on the scape and flower and hardy brown flowers in untreated plants were not found in the treated plots.? Interpretation: Symptom development in different parts of tuberose plants increased with increase in population of foliar nematode rendering to the unmarketable tuberose plants. Therefore, an urgent need of management of foliar nematode is documented with seven treatment modules and the modules were found effective in managing the nematode population in field condition.

Aphelenchoides besseyi parasitizing cowpea (Vigna unguiculata) in Brazil

Plant Disease ◽  
2021 ◽  
Author(s):  
Luciany Favoreto ◽  
Rafaela Bueno ◽  
Angélica Calandrelli ◽  
Patrícia Priscila França ◽  
Mauricio Conrado Meyer ◽  
...  
Keyword(s):  
Common Bean ◽  
Vigna Unguiculata ◽  
Host Reaction ◽  
First Report ◽  
Cowpea Cultivars ◽  
The World ◽  
Cotton Plants ◽  
Aphelenchoides Besseyi ◽  
Leaf Deformation

Several species of nematodes are known to cause losses to cowpea (Vigna unguiculata) throughout the world. In Brazil, Aphelenchoides besseyi was recently described causing damages on soybean, cotton, and common bean, but no report was found about the parasitism of this nematode in cowpea. The present study aimed to verify the host reaction of cowpea cultivars to A. besseyi. The experiment was conducted under greenhouse conditions, using as inoculum two A. besseyi populations, obtained from symptomatic soybean and cotton plants collected in naturally infested fields. Cultivars ‘Imponente’, ‘Aracê’, ‘Guariba’, ‘Tumucumaque’, ‘Nova Era’, and ‘Tracuateua’ were inoculated with 500 A. besseyi of each population, separately, into soil and after 30 days from the inoculation nematodes were extracted from shoot systems. Both populations were able to parasitize all the cowpea cultivars. Independently of the cultivar, cowpea plants exhibited symptoms of leaf deformation similar to those described for soybean, cotton, and common bean and, in addition, severe brooming was observed and the interior of the stems was porous and necrotic. To our knowledge, this is the first report of parasitism by A. besseyi of cowpea in Brazil, under greenhouse conditions, increasing the list of hosts of this nematode.

scholarly journals Aphelenchoides besseyi Christie (Nematoda: Aphelenchoididae), agente causal del amachamiento del frijol común

2013 ◽  
Vol 38 (3) ◽  
pp. 243-252 ◽  
Author(s):  
Néstor Chaves ◽  
Emilio Cervantes ◽  
Iñigo Zabalgogeazcoa ◽  
Carlos M. Araya
Keyword(s):  
Aphelenchoides Besseyi

scholarly journals First Reports of Aphelenchoides fragariae on Royal Fern and on Hosta and Other Hosts in South Carolina

Plant Disease ◽  
2000 ◽  
Vol 84 (5) ◽  
pp. 593-593 ◽  
Author(s):  
M. R. Williamson ◽  
J. H. Blake ◽  
S. N. Jeffers ◽  
S. A. Lewis
Keyword(s):  
South Carolina ◽  
Ornamental Plants ◽  
Botanical Garden ◽  
The South ◽  
Clemson University ◽  
First Report ◽  
Symptomatic Leaf ◽  
Aphelenchoides Fragariae ◽  
Foliar Nematode

In September 1999, royal ferns (Osmunda regalis L.) at a South Carolina wholesale nursery were found to be infected by foliar nematodes. Lesions were brown, vein-limited, and often fan shaped. As severity increased, affected leaflets became totally necrotic. Nematodes were extracted by excising and dicing symptomatic leaf sections and placing them in water for up to 24 h. Ten adult nematodes from each of two fern plants were examined microscopically and determined to be Aphelenchoides fragariae (Ritzema Bos) Christie. This is the first report of this nematode infecting royal fern. In August 1996, leaves from several cultivars of Hosta spp. with yellow to tan, vein-limited lesions were submitted from The South Carolina Botanical Garden (Clemson, SC) to the Clemson University Plant Problem Clinic for diagnosis. Nematodes were extracted and examined as described above and identified as A. fragariae. This is the first report of this nematode infecting Hosta spp. in South Carolina. Since 1996, foliar nematodes have been recovered from hostas at several wholesale nurseries in South Carolina. Aphelenchoides spp. also have been detected previously in commercially produced ornamental plants in South Carolina, including a Begonia sp. in 1988; Polygonum bistorta L. ‘Super-bum’ (snakeweed) in 1997; and a Polystichum sp. (holly fern) in 1997. All plants exhibited angular or vein-limited, necrotic lesions typical of foliar nematode infections.

Effects of temperatures on survival of Aphelenchoides besseyi in prolonged storage of rice grains

Nematology ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 1169-1177
Author(s):  
Shigeru Hoshino ◽  
Katsumi Togashi
Keyword(s):  
Survival Rate ◽  
Storage Period ◽  
Seed Storage ◽  
Middle Part ◽  
Prolonged Storage ◽  
Instantaneous Rate ◽  
Aphelenchoides Besseyi ◽  
Different Temperatures ◽  
Effects Of Temperature ◽  
Rice Seeds

Summary The white-tip nematode, Aphelenchoides besseyi, is a seed-borne ectoparasite of the rice plant Oryza sativa. Nematodes in dried rice seeds are in dehydrated quiescence or anhydrobiosis and are reactivated by rehydration. To understand the persistent parasitism better, the effects of temperature on nematode survival were examined during prolonged periods of seed storage. There was a marked difference in the survival rate among different temperatures; survival was lower at 20 and 25°C than at −5 to 10°C after storage for 190 days. No nematodes survived a storage period of 1313 days at 20 and 25°C. When rice seeds were held at 5°C, the survival rate of nematodes decreased during a period of 7315 days. The estimated instantaneous rate of mortality per month was higher in the early and late parts of the period than in the middle part. Another nematode population also showed a reduction in the survival rate during 6553 days storage at 5°C. In storage at −30°C, survival was not affected during a period of 6485 days. After storage at −30°C for 6546 days, 96% of rice seeds germinated, whereas 60-96% of seeds of two groups germinated after storage at 5°C for 6610-7373 days. Therefore, prolonged storage of rice seeds at 5 or −30°C was unlikely to disrupt the connection between rice plants and A. besseyi.

Sign in / Sign up

Export Citation Format

Share Document