Ecological Significance of Dormancy in Plant Parasitic Nematodes : I. Ecological Difference between Eggs in Gelatinous Matrix and Cyst of Hetrodera glycines ICHINOHE : Tylenchida : Heteroderidae

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概要

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• Hatching and development of larvae of the soybean cyst nematode, Heterodera glycines ICHINOHE, was compared between eggs deposited in the gelatinous matrix and those inside cysts of pale-yellow colour stage and brown stage under different conditions. A larger number of gelatinous matrix as well as eggs in it was produced when the host plants were given full nutrients under long-day treatment than hosts grown without fertilizer or under short-day treatment with full nutrients. It is considered that retardation of plant growth due to the lack of fertilizers or early initiation of flower bud formation caused by short photoperiod resulted in the early maturation of nematodes and a smaller number of eggs deposited in the gelatinous matrix. Larvae from gelatinous matrix and pale-yellow cyst entered the host roots earlier than those from brown cyst. Brown cyst was more resistant than the gelatinous matrix or pale-yellow cysts to the treatment with a 1 : 1,000 dilution of EDB emulsifiable concentrate for 10 min, which was evaluated by the larval invasion of host plant roots. Experiments in which eggs of the gelatinous matrix or cyst in moist sand (moisture : ca. 20%) were subjected to various temperatures including the lowest temperature of -10℃ for different periods (max. 90 days) showed the delay of hatching in distilled water at 25℃. The larval invasion of host roots was more decreased after the above treatments by those from gelatinous matrices and pale-yellow cysts than those from brown cysts.

• 日本応用動物昆虫学会の論文
• 1973-06-25

著者

• Kondo Eizo

  Laboratory Of Applied Zoology Faculty Of Agriculture Tokyo University Of Education Komaba:(present A

• Yokoo Tamio

  Laboratory Of Nematology And Entomology Faculty Of Agriculture Saga University

• Ishibashi Nobuyoshi

  Laboratory Of Nematology And Enlomology Faculty Of Agriculture Saga University

• MURAOKA Minoru

  Laboratory of Nematology and Entomology, Faculty of Agriculture, Saga University

• Muraoka Minoru

  Laboratory Of Nematology And Entomology Faculty Of Agriculture Saga University

関連論文

• The Induced Molting of 4th-Stage Larvae of Pin Nematode, Paratylenchus aciculus BROWN (Nematoda : Paratylenchidae), by Root Exudate of Host Plant : Ecological Significanse of Dormancy in Plant Parasitic Nematodes. III.
• Hormonal Effect on Cultivated Insect Tissues : I. Effect of Ecdysterone on Cultivated Testes of Diapausing Rice Stem Borer Larvae (Lepidoptera : Pyralidae)
• Ultrastructural Changes Associated with Development of Pin Namatode, Graculacus sp., with Special Reference to Its Survival : Ecological significance of dormancy in plant parasitic nematodes. VIII.
• Relationship between Wing-Form Response to Nymphal Density and Black Colouration of Adult Body in the Brown Planthopper, Nilaparvata lugens (Homoptera:Delphacidae)
• Infectivity and Propagation of Entomogenous Nematodes, Steinernema spp., on the Common Cutworm, Spodoptera litura : Lepidoptera : Noctuidae
• Occurrence and Survival of the Dispersal Forms of Pine Wood Nematode, Bursaphelenchus lignicolus MAMIYA and KIYOHARA : Ecological significance of dormancy in plant parasitic nematodes. V.
• Ultrastructural Changes Associated with the Tanning Process in the Cyst Wall of the Soybean Cyst Nematode, Heterodera glycines ICHINOHE : Ecological significance of dormancy in plant parasitic nematodes. II.
• Studies on the Hatching of the Root-Knot Nematode,Meloidogyne incognita Chitwood II.Radiosensitivity of Embryos and Infectivity of Larvae Emerging from Irradiated Egg Masses
• Variations of the Electrophoretic Protein Patterns of Heteroderidae (Nematodea : Tylenchida) Depending on the Developmental Stages of the Nematode and on the Growing Conditions of the Host Plants
• Effects of Ionizing Radiations on the Propagation of Root-Knot Nematodes,Meloidogyne incognita Chitwood
• Ultrastructural Characteristics of the Infective Juveniles of Steinernema spp. (Rhabditida : Steinernematidae) with Reference to Their Motility and Survival
• Nematode-Feeding Mites and Their Feeding Behavior
• Ultrastructural Differences between the Propagative and Dispersal Forms in Pine Wood Nematode, Bursaphelenchus lignicolus, with Reference to the Survival
• Ecological Significance of Dormancy in Plant Parasitic Nematodes : I. Ecological Difference between Eggs in Gelatinous Matrix and Cyst of Hetrodera glycines ICHINOHE : Tylenchida : Heteroderidae
• Histological and SEM Observations on the Invasion and Succeeding Growth of Entomogenous Nematode, Steinernema feltiae (str. DD-136), in Spodoptera litura (Lepidoptera : Noctuidae) Larvae
• Non-Oral Infection of Steinernema feltiae (DD-136) to the Common Cutworm, Spondoptera litura (Lepidoptera : Noctuidae)
• Size-related Susceptibility of Spodoptera litura (Lepidoptera : Noctuidae) Larvae to Entomogenous Nematode, Steinernema feltiae (DD-136)
• SEM Observations on the Intratracheal Existence and Cuticle Surface of the Pine Wood Nematode, Bursaphelenchus xylophilus, Associated with the Cerambycid Beetle, Monochamus carolinensis

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