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13 results for “Rare Biosphere”
Fig. 8 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 8. Umborotula bogorensis (Weber, 1890). Possible type locality in a pond of the Bogor Botanical Garden (Java). Picture after Arndt (1932).
Fig. 9. A in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 9. A. Part of the type encrusting on a plant, 1901:10:22:1 of Ephydatia blembingia = Umborotula bogorensis, the Natural History Museum of London. B. Six slides ZMA POR 01551 representing the remains of the type material of Umborotula bogorensis preserved in the Institute for Systematics and Population Biology of the University of Amsterdam.
Fig. 4 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 4. Umborotula bogorensis (Weber, 1890) from the Sakaerat Biosphere Reserve, NE Thailand. SEM micrographs. a. Gemmules in a group within skeletal meshes. Gemmular theca with almost flat foraminal area. Several free gemmuloscleres also scattered in the skeletal network. b. Gemmule (basal area, top view) with developed outer layer covering the distal rotules of radial gemmuloscleres. c–d. Gemmules showing foraminal area (central); outer layer is lacking (top view). e. Gemmule without outer layer showing partially dissociated gemmuloscleres in the pneumatic layer and the smooth inner layer of compact spongin. Foramen simple, with short collar. f. Gemmule (cross section) with foraminal tubule and radial gemmuloscleres in the trilayered theca. g. Outer layer at the theca surface with distal rotules of gemmuloscleres. h. Distal rotules of gemmuloscleres without outer layer. i. Proximal rotules of gemmuloscleres adhering to the inner layer of the theca. j–k. Foraminal area supported by a network of spongin fibres and a rosette of radial gemmuloscleres. l. Architecture of trilayered gemmular theca with radial gemmuloscleres and spiny shafts (cross section). m–o. Fibrous network of thin spongin fibres in the pneumatic layer (detail, cross section).
Fig. 5 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 5. Umborotula bogorensis (Weber, 1890) from the Sakaerat Biosphere Reserve, NE Thailand. Spicular complement (SEM) of gemmules and skeleton. a. Gemmulosclere birotules armed by large spines. b. Rotule of a gemmulosclere (top view). c. Shafts of gemmuloscleres with large scattered spines. d. Rotules of gemmulosclere (lateral view). e. Megascleres (oxeas) of the skeleton. f. Megascleres, tips. g. Megascleres, shafts.
Fig. 7 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 7. Historical trend of faunistic and taxonomic investigations focusing on Umborotula bogorensis (Weber, 1890). The papers mentioning this species are 40. The 15 papers (box) reporting new records are indicated by asterisks. See also Fig. 1 (map) and Appendix.
Fig. 6 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 6. Umborotula bogorensis (Weber, 1890) (as Ephydatia bogorensis Weber, 1890 and E. blembingia Evans, 1901). a–c. Diagnostic morphotraits from plates in original descriptions. d–f. Gemmule and spicules (LM) of E. blembingia from the type, BMNH 1901:10:22:1−2. a–b. Modified from Evans (1901). c. Modified from Weber (1890).
Fig. 1 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 1. Biogeographic pattern of the monotypic genus Umborotula with published records. The new record from the Sakaerat Biosphere Reserve in NE Thailand (14°30ʹ15.83″ N, 101°55ʹ03.64″ E) is indicated by the green square. For question marks, see text in the historical accounts section. The unpublished records are not reported (see Appendix). Red dots indicate the type localities of Ephydatia bogorensis Weber, 1890 and E. blembingia Evans, 1901.
Fig. 3 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 3. Umborotula bogorensis (Weber, 1890) from the Sakaerat Biosphere Reserve, NE Thailand. a. sampling site along a temporary streamlet and pool; arrows indicate the microhabitat of the two recorded specimens. b. Gemmule carpets (arrows) during low water level (dry season). c. Encrusting sponge with gemmules on a stick from the pool.
Fig. 2 in Rare freshwater sponges of Australasia: new record of Umborotula bogorensis (Porifera: Spongillida: Spongillidae) from the Sakaerat Biosphere Reserve in Northeast Thailand
Fig. 2. Map of Sakaerat Biosphere Reserve in Thailand (modified from Trisurat 2010). The new record of Umborotula bogorensis (Weber, 1890) is indicated by a star.
Extensive data mining uncovers novel diversity among members of the rare biosphere within the Thermoplasmatota
<p>This repository contains all EX4484-6 MAGs and additional raw data files used to create main figures and supplementary figures of the project: "Extensive data mining uncovers novel diversity among members of the rare biosphere within the Thermoplasmatota" (https://github.com/Microbial-Ecophysiology/EX4484-6_data_mining).<br><br><br></p>
Data from: Evidence for an active rare biosphere within freshwater protists community
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Data from: Structure of the rare archaeal biosphere and seasonal dynamics of active ecotypes in surface coastal waters
Marine Archaea are important players among microbial plankton and significantly contribute to biogeochemical cycles, but details regarding their community structure and long-term seasonal activity and dynamics remain largely unexplored. In this study, we monitored the inter-annual archaeal community composition of abundant and rare biospheres in northwestern Mediterranean Sea surface waters by pyrosequencing 16S rDNA and rRNA. A detailed analysis of the rare biosphere structure showed that the rare archaeal community was composed of three distinct fractions. One contained the rare Archaea that became abundant at different times within the same ecosystem; these cells were typically not dormant, and we hypothesize that they represent a local seed bank that is specific and essential for ecosystem functioning through cycling seasonal environmental conditions. The second fraction contained cells that were uncommon in public databases and not active, consisting of aliens to the studied ecosystem and representing a non-local seed bank of potential colonizers. The third fraction contained Archaea that were always rare but actively growing; their affiliation and seasonal dynamics were similar to the abundant microbes and could not be considered a seed bank. We also showed that the major archaeal groups, Thaumarchaeota Marine Group-I (MGI) and Euryarchaeota Group-II.B (MGII.B) in winter and Euryarchaeota Group-II.A (MGII.A) in summer, contained different ecotypes with varying activities. Our findings suggest that archaeal diversity could be associated with distinct metabolisms or life strategies, and that the rare archaeal biosphere is composed of a complex assortment of organisms with distinct histories that affect their potential for growth.
Data from: Structure of the rare archaeal biosphere and seasonal dynamics of active ecotypes in surface coastal waters
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