15 research outputs found
Dry Matter Production And Digestibility Improvement Of Centrosema Pub Escens And Pueraria Phaseotoides With Rock Phosphate Fertilization And Vam Inoculation
Get PDFCentrosema pubescens (centro) and Pueraria phaseoloides (puero) are important forage legumes as protein and mineral sources for ruminant livestock in the tropics. However, most of the land that used for forage production is characterized by a low phosphorus content. As the high cost of superphosphate is a major limiting factor, a combination of rock phosphate (RP) fertilization and vesicular-arbuscular mycorrhizae (VAM) fungi inoculation maybe a promising tecimique. A field experiment was conducted in Bogor during 7 months, on a latosolic soil (low pH and low available Bray II extractable P) to evaluate the effects of RP fertilization and yAM inoculation and their interaction on dry matter (DM) production and in vitro dry matter digestibility. A completely randomized block design with 3 replicates was used. The main experiment consisted therein the combination of three factors as follows 1) legume species (centro, puero), 2) VAM inoculation (with, and without VAM inoculation), and 3) rock phosphate fertilization (0, 44, 87, 131, and 175 kg P harn’). The period of defoliation was used as sub factor (defoliation I, II, and III). Results showed that DM production and DM digestibility of puero was significantly higher (PO.05) with or without VAM inoculation. When inoculated, rock phosphate fertilization increased DM production of legume. Success of yAM inoculation in the field affected by effectiveness of indigenousyAM fungi or depending upon VAM inoculum potentia
ARBUSCULAR MYCORRHIZAL FUNGI FROM THE RfflZOSPHERES OF SOYBEAN CROPS IN LAMPUNG AND WEST JAVA
No full textThe occurrence of arbuscular mycorrhizal (AM) fungi in the rhizospheres of field-grown soybean crops in the provinces of Lampung and West Java was examined. Nineteen taxa of AM fungi were identified as follows: Acaulospora delicata, A. Foveata, A. rehmii, A. scrobiculata and A. tuberculata; Gigaspora cf. gigantea and Gigaspora sp. 1; Glomus clavisporum; Glomus cf. fasciculatum, Glomus micro-aggregatum, Glomus sp. 1, Glomus sp. 2, Glomus sp. 3 and Glomus sp. 4; Scutellospora cf. heterogama, Scutellospora cf. pellucida, Scutellospora sp. 1. Scutellospora sp.2. and Scutellospora sp. 3
ARBUSCULAR MYCORRHIZAL FUNGI FROM THE RfflZOSPHERES OF SOYBEAN CROPS IN LAMPUNG AND WEST JAVA*)
Get PDFThe occurrence of arbuscular mycorrhizal (AM) fungi in the rhizospheres of field-grown soybean crops in the provinces of Lampung and West Java was examined. Nineteen taxa of AM fungi were identified as follows: Acaulospora delicata, A. Foveata, A. rehmii, A. scrobiculata and A. tuberculata; Gigaspora cf. gigantea and Gigaspora sp. 1; Glomus clavisporum; Glomus cf. fasciculatum, Glomus micro-aggregatum, Glomus sp. 1, Glomus sp. 2, Glomus sp. 3 and Glomus sp. 4; Scutellospora cf. heterogama, Scutellospora cf. pellucida, Scutellospora sp. 1. Scutellospora sp.2. and Scutellospora sp. 3.
Key words: Mycorrhizas/Soybean/Rhizosphere fungi/Identification
Growth and survival of root-nodule bacteria in legume inoculants stored at high temperatures
No full textReport on a review of ACIAR-funded projects on Rhizobium during 1983–2004
Get PDFCrop Production/Industries, Research and Development/Tech Change/Emerging Technologies,
Jumping plant-lice of the Paurocephalinae (Insecta, Hemiptera, Psylloidea): systematics and phylogeny
Get PDFMuch confusion exists with respect to the content and definition of the psyUid subfamily
Paurocephalinae. Based on a cladistic analysis of 22 morphological characters (16 adult
and 6 larval), the subfamily is redefined to comprise the following five valid genera:
Aphorma (3 species), Camarotoscena (12 valid species, with 1 new synonymy), DiC/idophlebia
(= Aconopsylla, Haplaphalara, Paraphalaroida, Sinuonemopsylla and Woldaia;
24 species), Paurocephala (52 species) and Syntomoza (= Anomoterga and Homalocephata;
7 species). The tribe Diclidophlebiini is synonymised with the subfamily Paurocephalinae.
The seven new generic synonymies produce 25 new species combinations. A
key to genera for adults and fifth instar larvae is presented. In their revised definitions
the genera exhibit relatively restricted distributions and host ranges: Aphorma: Palaearctic,
Oriental - Ranunculaceae; Camarotoscena: Palaearctic - Salicaceae; Diclidophtebia:
pantropical - Tiliaceae, Malvaceae, Sterculiaceae, Melastomataceae, Rhamnaceae,
Ulmaceae and Euphorbiaceae; Paurocephala: Old World tropics - Moraceae, Urticaceae.
Ulmaceae (all Urticales), Malvaceae. Sterculiaceae (all Malvales) and Clusiaceae (rheales);
Syntomoza: Oriental, Afrotropical, Palaearctic - Flacourtiaceae, Salicaceae. The
following taxa which have been referred to the Paurocephalinae are transferred to other
taxa: Atmetocranium to the Calophyidae and Primascena to the Aphalaroidinae;
Pseudaphorma is symonymised with Aphatara, and P. astigma with A. polygoni; the position
of Strophingia is confirmed in the Strophingiinae.peer-reviewe
BioGUID: resolving, discovering, and minting identifiers for biodiversity informatics
Get PDF<b>Background</b>: Linking together the data of interest to biodiversity researchers (including specimen records, images, taxonomic names, and DNA sequences) requires services that can mint, resolve, and discover globally unique identifiers (including, but not limited to, DOIs, HTTP URIs, and LSIDs).
<b>Results</b>: BioGUID implements a range of services, the core ones being an OpenURL resolver for bibliographic resources, and a LSID resolver. The LSID resolver supports Linked Data-friendly resolution using HTTP 303 redirects and content negotiation. Additional services include journal ISSN look-up, author name matching, and a tool to monitor the status of biodiversity data providers.
<b>Conclusion</b>: BioGUID is available at http://bioguid.info/. Source code is available from http://code.google.com/p/bioguid/
Inoculation of soybean with selected strains of Bradyrhizobium japonicum can increase yield on acid soils in Indonesia
No full textCan the standard IBTS-MIK survey provide reliable data on herring recruitment and spawning locations?
No full textNo abstracts are to be cited without prior reference to the author. In February and March each year an IBTS-MIK survey is conducted in the North Sea and English Channel to estimate the number of herring larvae. The standard sampling utilises a MIK (2m mid-water ring trawl: 1.6 mm mesh size), which is designed to catch larger autumn spawned herring larvae. The MIK-recruitment index ignores larvae below 11 mm. However, in recent years the numbers of small larvae has increased due to the increased herring winter spawning component and a prolonged spawning season. The international herring larvae surveys (IHLS) use a Gulf VII high-speed plankton sampler (280 µm) for catching small, recently hatched larvae. This survey finishes too early for newly hatched larvae in February
Visualization of actin filaments and monomers in somatic cell nuclei
Get PDF© The Author(s), 2013. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Molecular Biology of the Cell 24 (2013): 982-994, doi:10.1091/mbc.E12-09-0685.In addition to its long-studied presence in the cytoplasm, actin is also found in the nuclei of eukaryotic cells. The function and form (monomer, filament, or noncanonical oligomer) of nuclear actin are hotly debated, and its localization and dynamics are largely unknown. To determine the distribution of nuclear actin in live somatic cells and evaluate its potential functions, we constructed and validated fluorescent nuclear actin probes. Monomeric actin probes concentrate in nuclear speckles, suggesting an interaction of monomers with RNA-processing factors. Filamentous actin probes recognize discrete structures with submicron lengths that are excluded from chromatin-rich regions. In time-lapse movies, these actin filament structures exhibit one of two types of mobility: 1) diffusive, with an average diffusion coefficient of 0.06–0.08 μm2/s, or (2) subdiffusive, with a mobility coefficient of 0.015 μm2/s. Individual filament trajectories exhibit features of particles moving within a viscoelastic mesh. The small size of nuclear actin filaments is inconsistent with a role in micron-scale intranuclear transport, and their localization suggests that they do not participate directly in chromatin-based processes. Our results instead suggest that actin filaments form part of a large, viscoelastic structure in the nucleoplasm and may act as scaffolds that help organize nuclear contents.This bulk of this work was supported by a grant from the National Institutes of Health to R.D.M. (5R01GM061010-12). Additional support was provided by National Institutes of Health Grant R01 CA096840 (E.H.B.), a National Science Foundation Predoctoral Fellowship (B.B.), a National Institutes of Health Ruth L. Kirschstein Predoctoral Fellowship (B.B.), and a Genentech Fellowship (B.C.)
