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36 resultados encontrados para: TEMA: Simbiosis
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1.
- Artículo con arbitraje
*En hemeroteca, SIBE-San Cristóbal
New ecological and taxonomic remarks on Sabinella troglodytes and Nanobalcis worsfoldi (Gastropoda: Eulimidae) living on the slate-pencil sea urchin from the Mexican Caribbean region
González Vallejo, Norma Emilia ; León González, Jesús Ángel de (coaut.) ;
Contenido en: Revista Mexicana de Biodiversidad Vol. 89, no. 1 (marzo 2018), p. 123-133 ISSN: 1870-3453
Nota: En hemeroteca, SIBE-San Cristóbal
PDF
Resumen en: Español | Inglés |
Resumen en español

Eulimidae es una de las familias más diversificadas entre los gasterópodos marinos parásitos. Por lo general, se reportan asociados con equinodermos, pero para la mayoría de las especies descritas, el huésped es desconocido y pocos aspectos biológicos de la simbiosis son conocidos. Como parte de un estudio más amplio sobre eulímidos, se recogieron 300 erizos de mar en lagunas arrecifales de aguas poco profundas, algunos se mantuvieron vivos en el laboratorio durante una semana y fueron fotografiados y filmados bajo el microscopio estereoscópico. Nanobalcis worsfoldi vive alrededor y en la base de las espinas primarias del erizo de mar Eucidaris tribuloides y es muy abundante, mientras que Sabinella troglodytes, vive adherido dentro de una agalla que construye en las espinas primarias y es poco común. Se incluye una caracterización completa de los datos de conchas y morfología para ambos eulímidos. La comparación de nuestros especímenes con material tipo y no-tipo, reveló varias características notables. Encontramos la vuelta principal del cuerpo más alta y más anchas, variación en la posición de las cicatrices de crecimiento y el número total de vueltas. Sugerimos que existe un complejo de especies para Sabinella troglodytes. Los patrones de pigmentación del manto, el modo de adherirse, desplazamiento en vivo y otras observaciones ecológicas en el huésped se presentan por primera vez para ambas especies del mar Caribe mexicano.

Resumen en inglés

Eulimidae is one of the most diversified families among marine parasitic gastropods. They are usually reported associated with echinoderms, but for most described species the host is unknown, and few biological aspects of the symbiosis are known. As part of a larger study on eulimids, 300 sea urchins were collected in shallow water reef lagoons. Some were kept alive in the laboratory for 1 week and photographed and filmed under stereomicroscopes. Nanobalcis worsfoldi lives around and at the base of primary spines of the sea urchin Eucidaris tribuloides and is very abundant, whereas Sabinella troglodytes lives attached inside a gall that it builds from primary spines, and is uncommon. A complete characterization of the shells and morphology data for both eulimids are included. The comparison of our specimens with type and non-type material indicates several noteworthy features. We found higher and wider whorls, variation in position of growth scars and total number of whorls. We suggest that there is a species complex for Sabinella troglodytes. Mantle pigmentation patterns, mode of attachment, live displacement, and other ecological observations on the host are presented for the first time for both species from the Mexican Caribbean Sea.


2.
Artículo
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3.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Planktonic phases in symbiotic copepods: a review
Ohtsuka, Susumu ; Madinabeitia, Ione (coaut.) ; Yamashita, Hirofumi (coaut.) ; Venmathi Maran, Balu Alagar (coaut.) ; Suárez Morales, Eduardo (coaut.) ; Ho, Ju-shey (coaut.) ;
Contenido en: Bulletin, Southern California Academy of Sciences Vol. 117, no. 2 (Aug. 2018), p. 104-119 ISSN: 0038-3872
Nota: Solicítelo con su bibliotecario/a
Resumen en español

In symbiotic copepods, most naupliar stages are typically planktonic, playing a primary role in dispersal, while the first copepodid usually represents the infective stage. Later copepodid stages, including adults, are associated with host organisms. Many symbiotic copepods have abbreviated life cycles, with a reduced number of naupliar stages and two different feeding habits. These patterns are presumably related to distinct life cycles strategies. Exceptional cases are exemplified by members of theMonstrillidae and Thaumatopsyllidae, both of which are protelean parasites, with infective nauplii and non-feeding planktonic adults. In the Caligidae, the life cycle follows a generalized pattern, but adults of many species like Caligus undulatus seem to exhibit a dual mode of life involving host switching. Adults leaving the first host become temporarily planktonic before attaching to the final host. This dual mode of life is also found in adults of the Ergasilidae. Abbreviation of the planktonic phase is characteristic for some symbiotic taxa, thus suggesting that they have evolved to become highly efficient in locating and infecting new hosts without needing long-distance larval dispersal. The life cycle of copepods associated with zooplankters is also briefly reviewed. Zooplankters are clearly less used as hosts by copepods than benthic invertebrates. It is likely that symbiotic copepods dynamically utilize planktonic phases in their life cycle, thus maintaining the balance between dispersal, host location, reproduction, and predator-avoidance strategies.


4.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
The rare deep-living hyperiid amphipod Megalanceoloides remipes (Barnard, 1932): complementary description and symbiosis
Gasca, Rebeca ; Haddock, Steven H. D. (coaut.) ;
Contenido en: Zootaxa Vol. 4178, no. 1 (Oct. 2016), p. 138–144 ISBN:1175-5334
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

A female ovigerous specimen of the rare deep-living hyperiid Megalanceoloides remipes (Barnard, 1932) was collected with a remotely operated submersible (ROV) at a depth of 2,094 m in the Farallon Basin, Gulf of California. The specimen was found to be symbiotically associated with the siphonophore Apolemia sp. Eschscholtz, 1829. Hitherto, this species was known only from two other specimens, one from the South Atlantic and another from the Indian Ocean; the present record is the first from the Pacific Ocean. Previous descriptions lacked morphological details of different appendages; these data are provided here. In addition, we present the first data on its symbiotic association from in situ observations. The colors of the hyperiid and of some parts of the Apolemid were very similar, thus supporting the notion that some hyperiids tend to mimic the color of its host.


5.
Artículo
Lepidasthenia loboi sp. n. from Puerto Madryn, Argentina (Polychaeta, Polynoidae)
Salazar Vallejo, Sergio I. ; González Vallejo, Norma Emilia (coaut.) ; Salazar Silva, Patricia (coaut.) ;
Contenido en: ZooKeys No. 546 (December 2015), p. 21-37 ISSN: 1313-2970
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Resumen en: Inglés |
Resumen en inglés

Among polychaetes, polynoids have the highest number of symbiotic species found living with a wide variety of marine invertebrates, including other polychaetes. Lepidasthenia Malmgren, 1867 and Lepidametria Webster, 1879 were regarded as synonyms but belong to different subfamilies, although both have species associated with thelepodid or terebellid polychaetes. In this contribution Lepidasthenia loboi sp. n. is described from several specimens associated with the thelepodid Thelepus antarcticus Kinberg, 1867, collected on a rocky shore near Puerto Madryn, Argentina. Lepidasthenia loboi sp. n. can be confused with L. esbelta Amaral & Nonato, 1982 because both live with Thelepus, are of similar sizes with similar pigmentation patterns, and have giant neurochaetae. However, in L. loboi sp. n. all eyes are of the same size, cephalic and parapodial cirri are tapered and mucronate, the second pair of elytra is larger than the third, the ventral cirri arise at the base of parapodia such that they do not reach chaetal lobe tips, and neuraciculae are tapered. On the contrary, in L. esbelta the posterior eyes are larger than anterior ones, cephalic and parapodial appendages are swollen subdistally, the second and third pairs of elytra are of the same size, the ventral cirri arise medially such that their tips reach the neurochaetal lobe tips, and the neuraciculae have falcate tips. Some comments about other genera in the Lepidastheniinae, a simplified key to its genera, and a key to Lepidasthenia species with giant neurochaetae are also included.


6.
- Artículo con arbitraje
New symbiotic associations of Hyperiid amphipods (Peracarida) with gelatinous zooplankton in deep waters off California
Gasca, Rebeca ; Hoover, Rebecca (coaut.) ; Haddock, Steven H. D. (coaut.) ;
Contenido en: Journal of the Marine Biological Association of the United Kingdom Vol. 95, no. 3 (May 2015), p. 503–511 ISSN: 0025-3154
Resumen en: Inglés |
Resumen en inglés

Hyperiid amphipods are holoplanktonic marine crustaceans that are known as temporary symbionts of different groups of gelatinous zooplankton. The nature and dynamics of these associations are still poorly understood, particularly in deep waters. The mesopelagic and deep-living planktonic fauna off Monterey Bay, California (down to 4000 m) was surveyed using a remotely operated submersible (ROV) and blue-water diving (BWD) between September 2005 and January 2008. In this work we report our observations on a total of 51 symbiotic associations observed in situ (not from zooplankton samples), between hyperiid amphipods and various taxa of gelatinous zooplankton. We present the first information on the symbiotic relations of the hyperiid Vibilia caeca, and we provide data of 34 previously unknown symbiotic associations. The host range was expanded for several widely distributed hyperiid species. These findings suggest that the symbiotic associations between hyperiid amphipods and gelatinous zooplankton in deep waters deserve further study worldwide.


7.
Libro
Symbiosis in fishes: the biology of interspecific partnerships / Ilan Karplus
Karplus, Ilan ;
Chichester, West Sussex : Wiley Blackwell , 2014
Clasificación: 597 / K3
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030008306 (Disponible)
Disponibles para prestamo: 1
Resumen en: Inglés |
Resumen en inglés

Symbiosis in Fishes provides comprehensive coverage of the biology of partnerships between fishes and invertebrates, ascending the phylogenetic scale, from luminescent bacteria, sponges and coelenterates to molluscs, crustaceans and echinoderms. Both facultative and obligatory partnerships are reviewed with emphasis on the behavioral, ecological and evolutionary aspects of fish symbiosis. Each of the eight chapters of this book focuses on a different group of partners. The structure, physiology and anti-predatory strategies of each group are described to provide the necessary background for the understanding of their partnerships with fishes. The formation of the associations, the degree of partner specificity and its regulation, as well as the benefits and costs for the fishes and their associates, communication between partners and their possible co-evolution are discussed in each chapter. This is the first attempt to critically review in a single volume all associations of fishes with invertebrates based on the latest studies in these areas, together with studies published many years ago and little cited since then. Symbiosis in Fishes provides a huge wealth of information that will be of great use and interest to many life scientists including fish biologists, ecologists, ethologists, aquatic scientists, physiologists and evolutionary biologists. It is hoped that the contents of the book will stimulate many to further research, to fill in the gaps in our knowledge in this fascinating and important subject. Libraries in all universities and research establishments where biological sciences are studied and taught should have copies of this exciting book.


8.
Libro
The guests of Japanese ants / M. Maruyama, T. Komatsu, S. Kudo, T. Shimada, K. Kinomura
Maruyama, Munetoshi ; Komatsu, Takashi (coaut.) ; Kudo, Seiya (coaut.) ; Shimada, Taku (coaut.) ; Kinomura, Kyoichicho (coaut.) ;
Minamiyana, Japan : M. Maruyama, T. Komatsu, S. Kudo, T. Shimada and K. Kinomura :: Tokai University Press , 2013
Clasificación: 595.796 / G8
Bibliotecas: Chetumal
Cerrar
SIBE Chetumal
ECO030008610 (Disponible)
Disponibles para prestamo: 1

9.
Libro
Plant microbe symbiosis: fundamentals and advances / Naveen Kumar Arora editor
Arora, Naveen Kumar (ed.) ;
New Delhi, India : Springer India , 2013
Clasificación: 579.5 / P5
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013041 (Disponible)
Disponibles para prestamo: 1
Índice | Resumen en: Inglés |
Resumen en inglés

Plant microbe interaction is a complex relationship that can have various beneficial impacts on both the communities. An urgent need of today’s world is to get high crop yields in an ecofriendly manner. Utilization of beneficial and multifaceted plant growth promoting (PGP) microorganisms can solve the problem of getting enhanced yields without disturbing the ecosystem thus leading to sustainability. For this to achieve understanding of the intricate details of how the beneficial microbes form associations with the host plant and sustain that for millions of years must be known. A holistic approach is required wherein the diversity of microbes associated with plant and the network of mechanisms by which they benefit the host must be studied and utilized. ‘Plant Microbe Symbiosis – Fundamentals and Advances’ provides a comprehensive understanding of positive interactions that occur between plant and microorganisms and their utilization in the fields. The book reviews the enormous diversity of plant associated microbes, the dialog between plant-microbes-microbes and mechanisms of action of PGP microbes. Utilization of PGPRs as nutrient providers, in combating phytopathogens and ameliorating the stressed and polluted soils is also explained. Importantly, the book also throws light on the unanswered questions and future direction of research in the field. It illustrates how the basic knowledge can be amalgamated with advanced technology to design the future bioformulations.

Índice

1 Transactions Among Microorganisms and Plant in the Composite Rhizosphere Habitat
2 Plant–Microbe Interactions for Sustainable Agriculture: Fundamentals and Recent Advances
3 Plant–Microbe Partnerships: Implications for Growth and Plant Health
4 Plant–Microbe Symbiosis: Perspectives and Applications
5 Soil Rhizobacteria Regulating the Uptake of Nutrients and Undesirable Elements by Plants
6 The Complex Molecular Signaling Network in Microbe–Plant Interaction
7 The Contribution of New Technologies Toward Understanding Plant–Fungus Symbioses
8 Legume Root Nodule Associated Bacteria
9 Legume–Rhizobia Symbiosis and Interactions in Agroecosystems
10 Biological Nitrogen Fixation: Importance, Associated Diversity, and Estimates
11 Alleviation of Salt Stress in Legumes by Co-inoculation with Pseudomonas and Rhizobium
12 Potential of Rhizosphere Bacteria for Improving Rhizobium -Legume Symbiosis
13 Diversity of Plant Root Associated Microbes: Its Regulation by Introduced Biofilms
14 Secondary Metabolites of Pseudomonas aurantiaca and Their Role in Plant Growth Promotion
15 Plant–Microbe Interaction: A Potential Tool for Enhanced Bioremediation
16 Multifaceted Plant-Associated Microbes and Their Mechanisms Diminish the Concept of Direct and Indirect PGPRs
Index


10.
Libro
Symbiotic endophytes / Ricardo Aroca editor
Aroca, Ricardo (ed.) ;
Heidelberg, Alemania : Springer Verlag , 2013
Clasificación: 579.5 / S9
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013040 (Disponible)
Disponibles para prestamo: 1
Índice | Resumen en: Inglés |
Resumen en inglés

This Soil Biology volume examines our current understanding of the mechanisms involved in the beneficial effects transferred to plants by endophytes such as rhizobial, actinorhizal, arbuscular mycorrhizal symbionts and yeasts. Topics presented include how symbiosis starts on the molecular level; chemical signaling in mycorrhizal symbiosis; genomic and functional diversity of endophytes; nitrogen fixation; nutrient uptake and cycling; as well as plant protection against various stress conditions. Further, the use of beneficial microorganisms as biopesticides is discussed, particularly the application of Plant Growth Promoter Rhizobacteria (PGPR) in agriculture with the aim to increase yields.

Índice

Part I Rhizobial Symbiosis
1 Journey to Nodule Formation: From Molecular Dialogue to Nitrogen Fixation
2 A Roadmap Towards a Systems Biology Description of Bacterial Nitrogen Fixation
3 Carbon Metabolism During Symbiotic Nitrogen Fixation
4 Genomic and Functional Diversity of the Sinorhizobial Model Group
Part II Actinorhizal Symbiosis
5 Establishment of Actinorhizal Symbioses
6 Abiotic Factors Influencing Nitrogen-Fixing Actinorhizal Symbioses
7 Diversity of Frankia Strains, Actinobacterial Symbionts of Actinorhizal Plants
Part III Endophytic Plant Growth-Promoting Rhizobacteria (PGPR)
8 Abiotic Stress Tolerance Induced by Endophytic PGPR
9 Fighting Plant Diseases Through the Application of Bacillus and Pseudomonas Strains
10 Functional Diversity of Endophytic Bacteria
Part IV Arbuscular Mycorrhizal Symbiosis
11 Chemical Signalling in the Arbuscular Mycorrhizal Symbiosis: Biotechnological Applications
12 Carbon Metabolism and Costs of Arbuscular Mycorrhizal Associations to Host Roots
13 Arbuscular Mycorrhizal Fungi and Uptake of Nutrients
14 Arbuscular Mycorrhizal Fungi and the Tolerance of Plants to Drought and Salinity

15 Root Allies: Arbuscular Mycorrhizal Fungi Help Plants to Cope with Biotic Stresses
Part V Other Endophytic Fungi
16 Fungal Endophytes in Plant Roots: Taxonomy, Colonization Patterns, and Functions
17 Endophytic Yeasts: Biology and Applications
Index