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805 results for “nodulation”
FIGURE 1 in Description and distribution of Erebussau nom. nov. pro Erebus Bussau, 1993 nec Erebus Latreille, 1810 with description of a new specie, and of Odetenema gesarae gen. nov., sp. nov. (Nematoda: Desmoscolecida) from nodule-bearing abyssal sediments in the Pacific
FIGURE 1: Clarion-Clipperton Fracture Zone (CCFZ) showing the studied license areas of the Polymetallic Nodules Programme (PMN) and the Peru Basin. Imagery reproduced from the GEBCO Grid, version 1.3.0, www.gebco.net.
FIGURE 2 in Description and distribution of Erebussau nom. nov. pro Erebus Bussau, 1993 nec Erebus Latreille, 1810 with description of a new specie, and of Odetenema gesarae gen. nov., sp. nov. (Nematoda: Desmoscolecida) from nodule-bearing abyssal sediments in the Pacific
FIGURE 2: Distribution of Erebussau tenebricosus nom. nov., comb. nov. Imagery reproduced from the GEBCO Grid, version 1.3.0, ETOPO1 Global Relief Model (Amante & Eakins, 2009)
Data from: A genetic discontinuity in root-nodulating bacteria of cultivated pea in the Indian trans-Himalayas
Evolutionary relationships of 120 root-nodulating bacteria isolated from the nodules of Pisum sativum cultivated at 22 different locations of the trans-Himalayan valleys of Lahaul and Spiti in the state of Himachal Pradesh of India were studied using 16S rRNA gene PCR-RFLP, ERIC-PCR, sequencing of 16S rRNA, atpD, recA, nodC and nifH genes, carbon-source utilization pattern (BIOLOG™), and whole-cell fatty acid profiling. The results demonstrated that all isolates belonged to Rhizobium leguminosarum symbiovar viciae (Rlv). Isolates from the two valleys were clearly separated on the basis of ERIC fingerprints, carbon-source utilization pattern, and whole-cell fatty acid methyl esters. Phylogenetic analysis of atpD, recA, nodC and nifH genes revealed a common Rlv sublineage in Spiti valley. Lahaul valley isolates were represented by 3 sequence types of atpD and recA genes, and four sequence types of nodC and nifH genes. Genotypes from the two valleys were completely distinct, except for two Lahaul isolates that shared nodC and nifH sequences with Spiti isolates but were otherwise more similar to other Lahaul isolates. Isolates from the two highest Spiti valley sites (above 4000m) had a distinctive whole-cell fatty acid profile. Spiti valley isolates are closely related to Rlv sublineages from Xinjiang and Shanxi provinces in China, while Lahaul valley isolates resemble cosmopolitan strains of the western world. The high mountain pass between these valleys represents a boundary between two distinct microbial populations.
Data from: Validating genome-wide association candidates controlling quantitative variation in nodulation
Genome-wide association (GWA) studies offer the opportunity to identify genes that contribute to naturally occurring variation in quantitative traits. However, GWA relies exclusively on statistical association, so functional validation is necessary to make strong claims about gene function. We used a combination of gene-disruption platforms (Tnt1 retrotransposons, hairpin RNA-interference constructs, and CRISPR/Cas9 nucleases) together with randomized, well-replicated experiments to evaluate the function of genes that an earlier GWA study in Medicago truncatula had identified as candidates contributing to variation in the symbiosis between legumes and rhizobia. We evaluated ten candidate genes found in six clusters of strongly associated single nucleotide polymorphisms, selected on the basis of their strength of statistical association, proximity to annotated gene models, and root or nodule expression. We found statistically significant effects on nodule production for three candidate genes, each validated in two independent mutants. Annotated functions of these three genes suggest their contributions to quantitative variation in nodule production occur through processes not previously connected to nodulation, including phosphorous supply and salicylic acid-related defense response. These results demonstrate the utility of GWA combined with reverse mutagenesis technologies to discover and validate genes contributing to naturally occurring variation in quantitative traits. The results highlight the potential for GWA to complement forward genetics in identifying the genetic basis of ecologically and economically important traits.
Septarian nodule
# SHYMS:G.1982.203 **Septarian nodule** Septarian nodules are a type of concretion with cracks that become filled with minerals, in this case calcite. Length 10.5cm Width 10cm Depth 5.5cm. Imaged using a canon 5DS R and Stackshot 3x with turntable to provide 108 images which were then processed using agisoft photoscan at high levels. If you like this model or any others we produce we'd love to hear from you and how you've used them. Source: Objaverse 1.0 / Sketchfab
FIGURE 8 in A new genus and species of Brychiopontiidae Humes, 1974 (Crustacea: Copepoda: Siphonostomatoida) associated with an abyssal holothurian in the Northeast Pacific nodule province *
FIGURE 8. Neobrychiopontius galeronae gen. nov., sp. nov., holotype female. A, leg 4, anterior;B, leg 5.
FIGURE 6 in A new genus and species of Brychiopontiidae Humes, 1974 (Crustacea: Copepoda: Siphonostomatoida) associated with an abyssal holothurian in the Northeast Pacific nodule province *
FIGURE 6. Neobrychiopontius galeronae gen. nov., sp. nov., holotype female. A, maxilliped, anterior; B, leg 1, posterior.
FIGURE 7 in A new genus and species of Brychiopontiidae Humes, 1974 (Crustacea: Copepoda: Siphonostomatoida) associated with an abyssal holothurian in the Northeast Pacific nodule province *
FIGURE 7. Neobrychiopontius galeronae gen. nov., sp. nov., holotype female. A, leg 2, anterior; B, leg 3, anterior.
FIGURE 5 in A new genus and species of Brychiopontiidae Humes, 1974 (Crustacea: Copepoda: Siphonostomatoida) associated with an abyssal holothurian in the Northeast Pacific nodule province *
FIGURE 5. Neobrychiopontius galeronae gen. nov., sp. nov., holotype female. A, exopod of antenna; B, second segment of antennal endopod, arrows to small setae; C, mandible, arrow to second segment of palp; D, maxillule; E, maxilla, arrow to small seta; F, distal part of second segment of maxilla.
FIGURE 3 in A new genus and species of Brychiopontiidae Humes, 1974 (Crustacea: Copepoda: Siphonostomatoida) associated with an abyssal holothurian in the Northeast Pacific nodule province *
FIGURE 3. Neobrychiopontius galeronae gen. nov., sp. nov., holotype female. A, habitus, dorsal; B, urosome, ventral, arrow to small seta; C, left leg 6 and area with gonopores, genital doublesomite, dorsal, arrow to small seta; D, distal part of furca bearing 6 setae, arrow to location of missing setae; E, rostral area and oral cone, ventral. F, distal part of oral cone formed by labrum and labium, ventral.
FIGURE 2 in A new genus and species of Brychiopontiidae Humes, 1974 (Crustacea: Copepoda: Siphonostomatoida) associated with an abyssal holothurian in the Northeast Pacific nodule province *
FIGURE 2. Oneirophanta cfr. setigera, the host of Neobrychiopontius galeronae gen. et sp. nov. Copyright Ifremer.
FIGURE 1 in A new genus and species of Brychiopontiidae Humes, 1974 (Crustacea: Copepoda: Siphonostomatoida) associated with an abyssal holothurian in the Northeast Pacific nodule province *
FIGURE 1. In situ photograph of the sample taken for this study showing the spade corer with a specimen of the holothurian Oneirophanta cfr. setigera. Depth 4978 m. Copyright Ifremer.
FIGURE 10 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 10. Storthyngura yuzhmorgeo sp. nov. paratype female, MIMB 24421. A, body dorsal view; B, body lateral view; C, head dorsal view; D, pleotelson ventral view. Scale bar = 1 mm.
FIGURE 9 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 9. Storthyngura yuzhmorgeo sp. nov. holotype male, MIMB 24420. A, body dorsal view; B, body lateral view; C, head dorsal view; D, pleotelson ventral view. Scale bar = 1 mm.
FIGURE 11 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 11. Storthyngura yuzhmorgeo sp. nov. paratype female, MIMB 24421. Antennula, dorsal view and mouth parts.
FIGURE 8 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 8. Rectisura sp., damaged specimen from the Argentina Basin, RV "Akademik Kurchatov" cruise 43, St. 4907, depth 5218 m. Scale bar = 1 mm.
FIGURE 7 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 7. Rectisura slavai sp. nov., juvenile female, MIMB 24419. A, body dorsal view; B, body lateral view; C, pereonites 2–4, lateral margins, antennula and a basis of antenna 2. Scale bar = 1 mm.
FIGURE 13 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 13. Storthyngura yuzhmorgeo sp. nov. paratype female, MIMB 24421. Pereopods 1, 5–7; pleopods 3–5.
FIGURE 4 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 4. Rectisura slavai sp. nov., holotype female, MIMB 24418. Maxillae and left mandible, ventral and medial views.
FIGURE 3 in Description of two new species of munnopsid isopods (Crustacea: Isopoda Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone Pacific Ocean
FIGURE 3. Rectisura slavai sp. nov., holotype female, MIMB 24418. Left antennula, dorsal view, antenna 2 dorsal view, maxilliped, ventral view; a half of hypopharynx.
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OpenNeuro
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