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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Mycology and Nematology Genetic Diversity and Biology Laboratory » Research » Publications at this Location » Publication #361584
Research Project: Molecular Systematics, Identification, Biology, and Management of Crop-Parasitic Nematodes

Location: Mycology and Nematology Genetic Diversity and Biology Laboratory

Title: Evaluation of some plant species for their resistance against root-knot nematode Meloidogyne spp

Author
item IBRAHIM, IBRAHIM - Alexandria University Of Egypt
item Handoo, Zafar
item ZID, ASMAA - Alexandria University Of Egypt
item KANTOR, MIHAIL - Orise Fellow

Submitted to: Pakistan Journal of Nematology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 7/12/2019
Publication Date: 12/1/2019
Citation: Ibrahim, I.K., Handoo, Z.A., Zid, A.M., Kantor, M.R. 2019. Evaluation of some plant species for their resistance against root-knot nematode Meloidogyne spp. Pakistan Journal of Nematology. 37(2):135-140. https://doi.org/10.18681/pjn.v37.i02.p135-140.
DOI: https://doi.org/10.18681/pjn.v37.i02.p135-140

Interpretive Summary: Plant-parasitic nematodes are microscopic worms that feed on plants and cause an estimated ten billion dollars of crop losses each year in the United States and 100 billion dollars globally. Root-knot nematodes are the most economically important groups of plant-parasitic nematodes worldwide. One problem with root-knot nematodes is that growers have no idea of the host range of nematodes on specific crop cultivars. In the present study, ARS and Alexandria University scientists examined the reactions of four cotton, two sesame, and six flax to the root-knot nematodes Meloidogyne arenaria (Ma), M. incognita race 1 (Mil) and/or M. javanica (Mj) in the green house. The results showed all three tested root-knot nematode species reproduced successfully on some of the tested cultivars but not others. In contrast, all tested cultivars were either susceptible, highly susceptible or moderately resistant to the root-knot nematodes. The results are significant because they provide the first evidence that the specific tested cultivars are resistant or susceptible to the nematode species examined. This research will be of use to scientists, growers and extension agencies involved in root-knot nematode research and control.

Technical Abstract: The resistance of 4 cotton, 2 sesame, and 6 flax cultivars to the root-knot nematodes Meloidogyne arenaria (Ma), M. incognita race 1 (Mil) and/or M. javanica (Mj) was determined in green house studies. The results showed that the cotton cvs Giza 77, Giza 85, Giza 88, Giza 89 and sesame cvs Shandwil 1 and Toshka 1 were resistant to the tested nematode species. On the other hand, flax cvs Giza 1, Giza 5, Giza 6, Giza 7, Giza 8 and Sakha 1 were either susceptible or highly susceptible to the tested nematode species, except cvs Giza 7 and Giza 8, which were moderately susceptible to Mj. In three separate experiments the response of 4 banana cultivars (Baladi, Grand Naine, Magraby and Williams), 3 peach rootstocks (Bitter almond, Baladi, and Nemaguard), and 6 ornamental palm trees (California Washington palm, Mexican Washington, Canary date palm, Queen palm, Common palmetto, and Date palm) were for resistance to Mi1 and Mj. The tested banana and peach rootstock Bitter almond were highly susceptible to Mil and Mj. Baladi peach rootstock was highly susceptible to Mj. but resistant to Mil, whereas Nemaguard rootstock was resistant to both Mil and Mj. The tested palm trees date palm, California and Mexican Washington palms were susceptible to Mil and Mj. whereas Canary Date palm was moderately susceptible to both nematode species. The Queen palm was susceptible to Mil but moderately resistant to Mj. Common palmetto palm was moderately resistant to both Mil and Mj.