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24 results for “Eucalyptus globulus”
Figure 4 in Study of histoarchitectural changes in Anopheles stephensi larvae following exposure to Eucalyptus globulus and Aloe vera oils
Figure 4. Longitudinal section of thorax highlighting the gastric ceca of 4th instar Anopheles stephensi larvae (40×): (a) Control larva having epithelial cells (EC), vesicles (V), nucleus (N), peritrophic membrane (PM), basement-membrane (BM), muscle fibers (MF), microvilli (MV); (b) Eucalyptus globulus oil treated larva showing diversifications in various regions; (c) Aloe vera oil treated larva showing rifts in peritrophic membrane (PM).
Figure 3 in Study of histoarchitectural changes in Anopheles stephensi larvae following exposure to Eucalyptus globulus and Aloe vera oils
Figure 3. Longitudinal sections of head highlighting the region of imaginal bud of antennae (IBA) of 4th instar Anopheles stephensi larvae (40×): (a) Control larva showing intact IBA; (b) Eucalyptus globulus oil treated larva showing cracks and disorganization in IBA; (c) Aloe vera oil treated larva showing stretching and elongation in IBA.
Figure 5 in Study of histoarchitectural changes in Anopheles stephensi larvae following exposure to Eucalyptus globulus and Aloe vera oils
Figure 5. Longitudinal sections of abdomen of 4th instar Anopheles stephensi larvae (10×): (a) Control larva showing lumen (L) and muscle fibers (MF); (b) Eucalyptus globulus oil treated larva showing disintegration; (c) Aloe vera oil treated larva showing perturbation and lesions in the alimentary canal.
Figure 7 in Study of histoarchitectural changes in Anopheles stephensi larvae following exposure to Eucalyptus globulus and Aloe vera oils
Figure 7. Longitudinal sections of midgut region highlighting fat bodies of 4th instar Anopheles stephensi larvae (40×): (a) Control larva showing deposition of fat bodies (FB); (b) Eucalyptus globulus oil treated larva showing disappearance of fat bodies (FB) in various areas; (c) Aloe vera oil treated larva showing very little disruption of fat bodies (FB).
Topical Eucalyptus Globulus and Mentha x Piperita on Muscle Soreness in Older Adults and the Elderly
ClinicalTrials.gov study NCT04866407. IPD Sharing: NO. Countries: 1. Publications: 12.
FIGURES 8–12 in A new species of invasive gall wasp (Hymenoptera: Eulophidae: Tetrastichinae) on blue gum (Eucalyptus globulus) in California
FIGURES 8–12. Selitrichodes globulus Ƥ. 8, Head, frontal view. 9, Head, lateral view. 10, Mesosoma, dorsal. 11, Antenna. 12, Fore wing.
FIGURES 1–6. Selitrichodes globulus. 1–2 in A new species of invasive gall wasp (Hymenoptera: Eulophidae: Tetrastichinae) on blue gum (Eucalyptus globulus) in California
FIGURES 1–6. Selitrichodes globulus. 1–2, Gall damage on Eucalyptus globulus. 3, Galls showing adult emergence holes. 4, Dissected section of stem showing galls containing larvae and pupae. 5–6, Larvae within dissected galls.
Response of 25-day old Eucalyptus globulus to elevated CO2
<p><span>Increasing [CO<sub>2</sub>] may influence commercial crop and timber yield. While selection of genotypes sensitive to elevated [CO<sub>2</sub>] (e[CO<sub>2</sub>]) appears possible in agricultural crops, there is limited evidence for genotype-by-CO<sub>2</sub> (G×CO<sub>2</sub>) interactions in commercial tree species. We examined [CO<sub>2</sub>] responsiveness in 124 open-pollinated <em>Eucalyptus globulus</em> subspecies globulus (<em>E. globulus</em>) families with the aim of assessing whether G×CO<sub>2</sub> interactions are detectable in seedlings for early-age screening. Plants were grown in ambient (a[CO<sub>2</sub>]; ~405 μmol mol<sup>-1</sup>) and e[CO<sub>2</sub>] (640 μmol mol<sup>-1</sup>) and harvested 25 days after germination. Total, shoot and root dry weights were determined for each plant. Carbon isotopic discrimination against 13C (Δ13C) was determined at the family level. We observed highly significant (p<0.0001) increases in mean total, shoot, and root dry weights. Mixed-model equations were used to estimate the main and interaction effects of the G×CO<sub>2</sub> for each mass trait. The main effects from the mixed model output ([CO<sub>2</sub>] and individual-tree effects) were significant for all traits. However, [CO<sub>2</sub>]-by-individual tree interactions were non-significant for all traits, indicating little G×CO<sub>2</sub> interaction. A secondary aim was to examine the correlation between greenhouse and mature-age growth from breeding trials that use common families conducted under ambient [C<sub>O2</sub>]. These correlations were non-significant, suggesting early growth is not necessarily indicative of later-age responses. </span>Our results suggest that while early growth of <em>E. globulus</em> is enhanced under e[CO<sub>2</sub>], genotypes respond relatively uniformly to e[CO<sub>2</sub>] and little opportunity exists for seedling-based selection at the population level based upon the response of plants during the first weeks of growth.</p>
Fig. 4 in An extensive study on the chemical diversity of lipophilic extractives from Eucalyptus globulus wood
Fig. 4. Radial profile of different chemical families (proportion of chemical families) in the lipophilic DCM along the tree height levels (0%, 35% and 60%) in E. globulus mature wood trees.
Fig. 3 in An extensive study on the chemical diversity of lipophilic extractives from Eucalyptus globulus wood
Fig. 3. Proportion of chemical families in the lipophilic DCM extracts of E. globulus mature wood trees. Average of 36 runs (3 trees × 3 height levels x 2 extractions x 2 injections).
Fig. 2 in An extensive study on the chemical diversity of lipophilic extractives from Eucalyptus globulus wood
Fig. 2. Example of one GC-MS chromatogram of dichloromethane extracts (as TMS derivatives) of Eucalyptus globulus mature wood trees and range of the principal chemical family distribution. Main peaks: 3 - Decanoic acid (C10:0); 5 - Vanillin; 11 - Dodecanoic acid (C12:0); 12 - 4-hydroxy-3,5- dimethoxybenzaldehyde; 13 - homovanillic alcohol; 14 - Vanillic acid; 25 - Syringic acid; 36 - Propiovanillone; 39 - Hexadecanoic acid (C16:0); 52 - Octadeca-9,12-dienoic acid (C18:2); 55 - Octadecanoic acid (C18:0); 66 - ω-hydroxy fatty acid (C18:2); 67 - Icosanoic acid (C20:0) 74 - 1-palmitoylglycerol (G- C16:0); 79 - 2-hydroxy-decane-1,10-dioic acid (C10:0); 86 - Octacosane (C28); 90 -Tetracosanoic acid; 94 - Hexacosan-1-ol (C26); 102 - a-tocopherol; 109 - campesterol; 115 - tritriacontane (C33); 118 - β-Sitosterol; 123 - 2-tetracosanoylglycerol (G-C24:0); 140 - Betulinic acid isomer; 146 - 1-hexacosanoylglycerol (G-C26:0); 147 - Ursolic acid; 161 - Arjunolic acid; 162 - Asiatic acid; 168 - sitosteryl 3-β-D-glucopyranoside. All the identified peaks are listed in Tables 1–6
Fig. 1 in An extensive study on the chemical diversity of lipophilic extractives from Eucalyptus globulus wood
Fig. 1. Schematic drawing of sapwood heartwood outer and inner in the stems of E. globulus trees harvested for these study. Heartwood area and extractives content (average of three trees ± STDEV) (Adapted from Gominho et al., 2015).
Data from: <em>In vitro</em> anti-tick effect of <em>Eucalyptus globulus</em> oil and its nano-emulsion against unfed adults of the brown dog tick <em>Rhipicephalus sanguineus</em> sensu lato (Acari: Ixodidae)
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Response of 25-day old Eucalyptus globulus to elevated CO2
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Figure 1 from: Pinzón-Florián O (2020) First report on the gall wasp Ophelimus near migdanorum (Hymenoptera, Eulophidae) and its parasitoid Closterocerus chamaeleon (Hymenoptera, Eulophidae) in Eucalyptus globulus in Bogotá, Colombia. ZooKeys 902: 151-156. https://doi.org/10.3897/zookeys.902.39213
Figure 1 Different stages of gall development on E. globulus foliage. A Initial stage B fully developed galls C fully developed galls in the petiole. Scale bar: 1 mm.
Figure 3 from: Pinzón-Florián O (2020) First report on the gall wasp Ophelimus near migdanorum (Hymenoptera, Eulophidae) and its parasitoid Closterocerus chamaeleon (Hymenoptera, Eulophidae) in Eucalyptus globulus in Bogotá, Colombia. ZooKeys 902: 151-156. https://doi.org/10.3897/zookeys.902.39213
Figure 3 Closterocerus chamaeleon emerged from mature E. globulus leaves infested by Ophelimus sp. A Dorsal view B lateral view. Scale bars: 1 mm.
FIGURE 7 in A new species of invasive gall wasp (Hymenoptera: Eulophidae: Tetrastichinae) on blue gum (Eucalyptus globulus) in California
FIGURE 7. Selitrichodes globulus Ƥ. Habitus.
Data for: Testing an invasion mechanism for Eucalyptus globulus: is there evidence of allelopathy?
<p><span><span><span><span><span><span><span><span><span><span><span><i>Premise of study</i>- Sparse understory communities, in association with non-native tree species, are often attributed to allelopathy, the chemical inhibition of one plant by another. However, allelopathy is a difficult ecological phenomenon to demonstrate with many studies showing conflicting results. <i>Eucalyptus globulus</i>, a native tree to Australia, is one of the most widely planted trees around the world. Sparse understories are common beneath <i>E. globulus</i>plantations and are often attributed to allelopathy, but the ecological impacts of <i>E. globulus</i>on native plant communities are poorly understood. </span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><i>Methods -</i>To assess allelopathy as a mechanism of understory inhibition, we tested volatile- and water-soluble leaf extracts on seed germination of California native plants. We also quantified germination rates and early seedling growth of native plants grown in soil from <i>E. globulus</i>plantations versus soil from an adjacent native plant community. </span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><i>Key results</i>- Volatile compounds from <i>E. globulus</i>did not significantly reduce germination for any species. Inhibition from water-soluble <i>E. globulus</i>compounds was comparable to that of a native tree, <i>Quercus agrifolia </i>(10%)<i>.</i><i>Eucalyptus globulus</i>soil supported germination and early seedling growth of native species equal to or better than coastal scrub soil, although species responses were variable. </span></span></span></span></span></span></span></span></span></span></span></p> <p><span><span><span><span><span><span><span><span><span><span><span><i>Conclusions</i>- In contrast to previous studies, our results fail to support the hypothesis that <i>E. globulus</i>chemically inhibits germination of native species. California native plants germinate and grow well in soils from <i>E. globulus</i>plantations, which may have significant implications for management and restoration of land historically occupied by <i>E. globulus</i>plantations. </span></span></span></span></span></span></span></span></span></span></span></p>
Figure 1 in Study of histoarchitectural changes in Anopheles stephensi larvae following exposure to Eucalyptus globulus and Aloe vera oils
Figure 1. Longitudinal sections of 4th instar Anopheles stephensi larvae (4×): (a) Control larva showing normal and intact body; (b) Eucalyptus globulus oil treated larva showing disintegration of body; (c) Aloe vera oil treated larva showing disintegration of body.
Figure 6 in Study of histoarchitectural changes in Anopheles stephensi larvae following exposure to Eucalyptus globulus and Aloe vera oils
Figure 6. Longitudinal sections of epithelium layer of midgut of 4th instar Anopheles stephensi larvae (40×): Control larva showing cells having nucleus (N), peritrophic membrane (PM), basement membrane (BM), and microvilli (MV); Eucalyptus globulus oil treated larva showing lysis of epithelial cells; Aloe vera oil treated larva showing ruptured areas.
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