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80 results for “Steinernematidae”
FIGURE 3. A in Steinernema apuliae sp. n. (Rhabditida: Steinernematidae): a new entomopathogenic nematode from southern Italy
FIGURE 3. A, SEM of first generation female of S. apuliae sp. n., head with 6 labial and 4 cephalic papillae; B, first generation female, Nomarski LM, tail with apical papillae or protuberance; C, SEM of first generation female, tail with apical papillae or protuberances; D, SEM of first generation female, lateral view of tail with conicallike tip and apical papilla or protuberance; E, second generation female, Nomarski LM, asymmetrical vulva; F, SEM of second generation female, asymmetrical vulva; G, SEM of second generation female, ventral view of tail with an apical protuberance; H, SEM of infective juvenile, lateral field with 8 identical ridges; I, infective juvenile, Nomarski LM, esophageal portion with excretory pore and hemizonid; L, infective juvenile, Nomarski LM, tail with hyaline portion.
FIGURE 2. A in Steinernema apuliae sp. n. (Rhabditida: Steinernematidae): a new entomopathogenic nematode from southern Italy
FIGURE 2. A, SEM second generation male of S. apuliae sp. n, dorsal view of posterior region of male and 2 pairs of adcloacal papillae (a and b), 3 pairs of papillae near tail tip; B, second generation male, Nomarski LM, esophagus and excretory pore; C, second generation male, Nomarski LM, mail tale with spicules and gubernaculum.
FIGURE 4 in Steinernema apuliae sp. n. (Rhabditida: Steinernematidae): a new entomopathogenic nematode from southern Italy
FIGURE 4. RFLP profiles for (A) Steinernema apuliae sp. n., (B) S. arenarium and (C) S. glaseri. M molecular weight markers (band sizes shown in base pairs); Sf, the ITS region from S. feltiae (UK site 76) digested with Alu I; lanes 1 to 17 the ITS region for each isolate digested with the following restriction enzymes; 1, Alu I; 2, BstO I; 3, Dde I; 4, EcoR I; 5, Hae III; 6, Hha I; 7, Hind III; 8, Hinf I; 9, Hpa II; 10, Kpn I; 11, Pst I; 12, Pvu II; 13, Rsa I; 14, Sal I; 15, Sau 3 A I; 16, Sau 96 I; 17, Xba I.
FIGURE 5. Steinernema guangdongense n in Steinernema guangdongense sp. n. (Nematoda: Steinernematidae), a new entomopathogenic nematode from southern China with a note on S. serratum (nomen nudum)
FIGURE 5. Steinernema guangdongense n. sp. Lightmicroscope photographs. AB, epiptygma of the first generation females. CD, tails of infective juveniles showing dorsal constriction (arrows), compared to no dorsal constriction in S. longicaudum in EF. G, mature female of the first generation with prominent postanal swelling. H, second generation female with longer tail. Scales: A, B = 18 μm, C = 24 μm, D = 22 μm, E, F = 22 μm.
FIGURE 6 in Steinernema guangdongense sp. n. (Nematoda: Steinernematidae), a new entomopathogenic nematode from southern China with a note on S. serratum (nomen nudum)
FIGURE 6. SEM photographs of Steinernema guangdongense n. sp. infective juvenile. AB, anterior region showing one lateral line, closed mouth (m), amphids (a) and cephalic (c) papillae. C, lateral field with 2 ridges (3 incisures). D, lateral field showing the change of lateral field pattern from 2 to 7 ridges. E, lateral field showing 7 ridges and the middle one (number 4) is divided into 2 making 8 ridges in lateral field. F, lateral field showing phasmid (p) and 7 ridges changing to 4 then 2. Scales: A = 6.67 μm, B = 5 μm, C = 8.60 μm, D F = 6.67 μm.
Fig. 2 in Findings Of Entomopathogenic Nematodes (Rhabditida, Steinernematidae) In Nature Reserves In Ukraine
Fig. 2. Consensus sequence alignment of the ITS rDNA region (including partial fragments of the 18S and 28S rDNA genes) of Steinernema isolates.
Fig. 1 in Findings Of Entomopathogenic Nematodes (Rhabditida, Steinernematidae) In Nature Reserves In Ukraine
Fig. 1. Map of Ukraine with marked areas of soil sampling: 1 — Dniprovsko-Orilsky Nature Reserve; 2 — Ukrainian Steppe Nature Reserve, "Kamyani Mohyly"; 3 — Kazantip Nature Reserve; 4 — Karadag Nature Reserve; 5 — Crimean Nature Reserve; 6 — Chornomorsky Biosphere Reserve, Ivano-Rybalchansky District; 7 — Nature Reserve "Yelanetsky steppe".
Fig. 1 in Effect of Colombian strains of Steinernema colombiense (Rhabditida: Steinernematidae) and Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae) against Eurhizococcus colombianus (Hemiptera: Margarodidae) and Aeneolamia sp. (Hemiptera: Cercopidae)
Fig. 1. Percentage mortality (mean ± SE) of Aeneolamia sp. nymphs treated with Steinernema colombiense and Heterorhabditis bacteriophora strain Fresno at 12 d afer inoculation under greenhouse conditions. Different letters indicate significant differences (ANOVA and Tukey's HSD test at P <0.05).
Fig. 4 in Asilidae (Diptera: Brachycera) - natural hosts of Steinernema feltiae (Rhabditida: Steinernematidae) at the Zemen Gorge region
Fig. 4. Caudal view of the male S. feltiae Fig. 3. Head capsule of the host larva. Scale isolated from the host. Scale bar: 25 bar: 0.3 mm. µm.
Fig.1 in Asilidae (Diptera: Brachycera) - natural hosts of Steinernema feltiae (Rhabditida: Steinernematidae) at the Zemen Gorge region
Fig.1. Fragment of the investigated habitat Fig.2. Nematodes emerging from the asilid with Aegopodium podagraria. host larva. Scale bar: 1 mm.
Fig. 1 in Development of Steinernema feltiae (Rhabditida: Steinernematidae) in larvae of Chaetonyx robustus (Coleoptera: Orphnidae)
Fig. 1. Imago and larvae of Chaetonyx robustus, collected in soil of the investigated habitat (22.04.2011, D. Gradinarov leg.). Scale bar: 10 mm.
Fig. 3. First parasitic generation emerging Fig. 4. Juveniles migration from a in Development of Steinernema feltiae (Rhabditida: Steinernematidae) in larvae of Chaetonyx robustus (Coleoptera: Orphnidae)
Fig. 3. First parasitic generation emerging Fig. 4. Juveniles migration from a host. from host. Scale bar: 1 mm. Scale bar: 1 mm.
Fig. 2 in Management of flower thrips in Florida strawberries with Steinernema feltiae (Rhabditida: Steinernematidae) and the insecticide sulfoxaflor
Fig. 2. Least square means (± 95% confidence intervals) for (A) adult and (B) larval thrips (Frankliniella bispinosa) per 10 strawberry flowers from research plots near Balm, Florida, sprayed 3, 7, and 16 Mar 2016 with Steinernema feltiae and 3 and 16 Mar 2016 with insecticides. Treatments were applied and reapplied when total thrips counts exceeded 5 per flower. Means in lower panel with the same letter are not significantly different (Tukey's HSD test, α = 0.05) (Experiment 2).
Fig. 1 in Management of flower thrips in Florida strawberries with Steinernema feltiae (Rhabditida: Steinernematidae) and the insecticide sulfoxaflor
Fig. 1. Least square means (± 95% confidence intervals) for (A) adult and (B) larval thrips (Frankliniella bispinosa) per 10 strawberry flowers from research plots near Balm, Florida, sprayed 26 Feb, and 1, 5, and 9 Mar 2016 with Steinernema feltiae or insecticides. Means in each panel with the same letter are not significantly different (Tukey's HSD test, α = 0.05) (Experiment 1).
Fig. 3 in Management of flower thrips in Florida strawberries with Steinernema feltiae (Rhabditida: Steinernematidae) and the insecticide sulfoxaflor
Fig. 3. Hourly temperature (lef y-axis), rainfall, and relative humidity (right y-axis) 26 Feb to 25 Mar 2016 at Balm, Florida.
Figure 5 in Steinernema africanum n. sp. (Rhabditida, Steinernematidae), a New Entomopathogenic Nematode Species Isolated in the Republic of Rwanda
Figure 5: Light microscope micrographs of second-generation adults and IJ of Steinernema afriCanUm n. sp. (A–C) Stoma and pharynx region of female, male and IJ, respectively. Black arrow pointing the EP, white arrow pointing the bacteria sac. (D) Vagina region. (E, F) Entire female and male, respectively. (G, H) IJ bacterial sac and lateral field, respectively. (I–K) Posterior end of female, male, and IJ, respectively. Pictures are in right lateral view. EP, excretory pore; IJ, infective juvenile.
Figure 8 in Steinernema africanum n. sp. (Rhabditida, Steinernematidae), a New Entomopathogenic Nematode Species Isolated in the Republic of Rwanda
Figure 8: Phylogenetic relationships between the newly described Steinernema afriCanUm n. sp. and other Steinernema species. Maximum-likelihood phylogenetic tree reconstructed from: (A) the nucleotide sequences of the ITS rRNA. A total of 705 nucleotide positions, flanked by primers 18S and 26S, were analyzed; (B) the nucleotide sequences of the D2–D3 expansion segments of the 28S rRNA. A total of 786 nucleotide positions, flanked by primers D2F and 536, were analyzed; (C) the nucleotide sequences of the COI gene. A total of 567 nucleotide positions, flanked by primers LCO-1490 and HCO-2198, were analyzed; and (D) the nucleotide sequences of the mitochondrial 12S rRNA gene. A total of 467 nucleotide positions, flanked by primers 505F and 506R, were analyzed. Numbers at nodes represent bootstrap values based on 100 replications. Bars represent average nucleotide substitutions per sequence position. NCBI accession numbers of the nucleotide sequences used for the analyses are shown next to the species names. COI, cytochrome oxidase subunit I; ITS, internal transcribed spacer; NCBI, National Center for Biotechnology Information.
Figure 4 in Steinernema africanum n. sp. (Rhabditida, Steinernematidae), a New Entomopathogenic Nematode Species Isolated in the Republic of Rwanda
Figure 4: Light microscope micrographs of first-generation adults and IJ of Steinernema afriCanUm n. sp. (A, B) Stoma and pharynx region of female and male, respectively. (C–E) Lip region and stoma of female, male and IJ, respectively. (F) Vagina region. (G–I) Entire female, male and IJ, respectively. (J) Posterior end of a female. (K, L) Posterior end of males. Pictures are in right lateral view. IJ, infective juvenile.
Figure 7 in Steinernema africanum n. sp. (Rhabditida, Steinernematidae), a New Entomopathogenic Nematode Species Isolated in the Republic of Rwanda
Figure 7: Scanning electron microscope micrographs of second-generation adults and IJ of Steinernema afriCanUm n. sp. (A–C) Lip region of female, male, and IJ in lateral view, respectively. Arrows pointing the amphids (C: cheilostom, G: gymnostom, S: stegostom, cp: cephalic papillae, lp: labial papillae). (D–F) Lip region of female, male, and IJ in frontal view, respectively. Black arrows point to the amphids, white arrow points to the dorsal gland opening. (G) EP of female. (H) Male posterior region in lateral view – GP, MP, ph. (I) EP of IJ. (J) Vulva. (K) IJ lateral field. (L, M) Female tail (arrows pointing the phasmids). (N) Male posterior region in lateral view. (O, P) IJ tail in lateral and ventral views, respectively. Arrows pointing the phasmids. EP, excretory pore; GP, genital papillae; MP, mid-ventral papilla; ph, phasmid.
Figure 1 in Steinernema africanum n. sp. (Rhabditida, Steinernematidae), a New Entomopathogenic Nematode Species Isolated in the Republic of Rwanda
Figure 1: Line drawings of Steinernema afriCanUm n. sp. IJ. (A) Stoma and pharynx region. (B) Anterior end. (C) Entire IJ. (D) Posterior end. IJ, infective juvenile.
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