Airborne and belowground phytotoxicity of invasive Ageratina adenophora on native species in Nepal

Plant Ecology - Volatile compounds from leaf litter of invasive alien Ageratina adenophora are known to inhibit growth of native species in sub-tropical Asia, but there is not...     

Bloodwood: the composition and secreting-site of the characteristic red exudate that gives the name to the Swartzia species (Fabaceae)

Journal of Plant Research - The Swartzia species are commonly known as bloodwood due to the red exudate released from the stem after injury. This exudate has aroused great...     

Geotropic,hydrokinetic and random walking differ between sympatric tick species: the deer tick Ixodes scapularis and the lone star tick Ambylomma americanum

Journal of Ethology - The black-legged tick –sometimes referred to as the deer tick—Ixodes scapularis and the lone star tick Ambylomma americanum are sympatric species...     

A review of the Apocreadiidae Skrjabin, 1942 (Trematoda: Digenea) and description of Australian species

The Apocreadiidae is reviewed and is considered to include genera recognised previously within the families Apocreadiidae, Homalometridae, Schistorchiidae, Sphincterostomatidae and Trematobrienidae. Key features of the family are extensive vitelline follicles, eye-spot pigment dispersed in forebody, I-shaped excretory vesicle, no cirrus-sac and genital pore opening immediately anterior to the ventral sucker (usually) or immediately posterior to it (Postporus Manter, 1949). Three subfamilies and 18 genera are recognised within the Apocreadiidae. The Apocreadiinae comprises Homalometron Stafford, 1904 (new syn. Barbulostomum Ramsey, 1965), Callohelmis n. g., Choanodera Manter, 1940, Crassicutis Manter, 1936, Dactylotrema Bravo-Hollis & Manter, 1957, Marsupioacetabulum Yamaguti, 1952, Microcreadium Simer, 1929, Myzotus Manter, 1940, Neoapocreadium Siddiqi & Cable, 1960, Neomegasolena Siddiqi & Cable, 1960, Pancreadium Manter, 1954, Procaudotestis Szidat, 1954 and Trematobrien Dollfus, 1950. The Schistorchiinae comprises Schistorchis Lühe, 1906, Sphincterostoma Yamaguti, 1937, Sphincteristomum Oshmarin, Mamaev & Parukhin, 1961 and Megacreadium Nagaty, 1956. The Postporinae comprises only Postporus. A key to subfamilies and genera of the Apocreadiidae is provided. It is argued that there is no convincing basis for the recognition of the genus Apocreadium Manter, 1937 and all its constituent species are combined with Homalometron. The following new combinations are proposed for species previously recognised within Apocreadium: Homalometron balistis (Manter, 1947), H. caballeroi (Bravo-Hollis, 1953), H. cryptum (Overstreet, 1969), H. longisinosum (Manter, 1937), H. manteri (Overstreet, 1970), H. mexicanum (Manter, 1937) and H. vinodae (Ahmad, 1985). Apocreadium uroproctoferum Sogandares-Bernal, 1959 is found to lack a uroproct and is made a synonym of H. mexicanum. Homalometron verrunculi nom. nov. is proposed to replace the secondarily pre-occupied H. caballeroi Lamothe-Argumedo, 1965. Barbulostomum is made a synonym of Homalometron and H. cupuloris (Ramsey, 1965) n. comb. is proposed. Neochoanodera is made a synonym of Choanodera and Choanodera ghanensis (Fischthal & Thomas, 1970) n. comb. is proposed. Species within the Apocreadiinae and Postporinae are reviewed and the following are recorded or described from Australian fishes: Homalometron wrightae n. sp. from Achlyopa nigra (Macleay), H. synagris (Yamaguti, 1953) n. comb. from Scolopsis monogramma (Cuvier), H. stradbrokensis n. sp. from Gerres subfasciatus Cuvier, Marsupioacetabulum opallioderma n. sp. from G. subfasciatus, Neoapocreadium karwarensis (Hafeezullah, 1970) n. comb. from G. subfasciatus, N. splendens n. sp. from S. monogramma and Callohelmis pichelinae n. g., n. sp. from Hemigymnus melapterus (Bloch), H. fasciatus (Bloch), Stethojulis bandanensis (Bleeker) andChoerodon venustus (De Vis). Callohelmis is recognised by the combination of absence of tegumental spines, caeca terminating midway between the testes and posterior end of body, ventral sucker enclosed in a tegumental pouch, prominent muscles radiating through the body from the ventral sucker, vitelline follicles not extending into the forebody, and a very short excretory vesicle that opens ventrally. New combinations for species previously recognised within Crassicutis are proposed as follows: Neoapocreadium caranxi (Bilqees, 1976) n. comb., N. gerridis (Nahhas & Cable, 1964) n. comb., N. imtiazi (Ahmad, 1984) n. comb. and N. marina (Manter, 1947) n. comb. The host-specificity and zoogeography of the Apocreadiinae are considered.     

Agave rzedowskiana, a new species in subgenus Littaea (Agavaceae) from western Mexico

Agave rzedowskiana is described and illustrated from the states of Sinaloa and Jalisco, Mexico. This species is a member of subgenusLittaea (Tagliabue) Baker “groupStriatae” of Baker. It is compared withA. petrophila García-Mend. & E. Martínez andA. dasylirioides Jacobi & Bouché.

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Resumen  Se describe e ilustraAgave rzedowskiana de los estados de Sinaloa y Jalisco, México. La especie pertenece al subgéneroLittaea (Tagliabue) Baker “Grupo Striatae” de Baker. Se le compara conA. petrophila García-Mend. & E. Martínez yA. dasylirioides Jacobi & Bouché.

     

Ceiba rubriflora (Malvaceae: Bombacoideae), a new species from Bahia, Brazil

Summary   Ceiba rubriflora Carv.-Sobr. & L. P. Queiroz, a new species of Malvaceae subfamily Bombacoideae from the State of Bahia, Brazil, is described and illustrated. It is considered to be endemic to calcareous outcrops in the valley of the Rio S?o Francisco, in the western region of the state. Notes on distribution, ecology and phenology are given. Relationships with related species are discussed and an addition to the key to species of Ceiba Mill. published by Gibbs & Semir (2003) are provided.     

Comparative transcriptome analysis to identify putative genes related to trichome development in Ocimum species

Molecular Biology Reports - Genus Ocimum is known to have species possessing important therapeutic essential oil. The major phytoconstituents of essential oil in Ocimum species are...     

Method for Primary Screening of Pharmaceuticals on the Paramecium caudatum Eukaryotic Cell Model

Doklady Biochemistry and Biophysics - The  effect  of  adrenaline  in  various  concentrations  and  dopamine  at...     

Evolution of Carthamus species revealed through sequence analyses of the fad2 gene family

Physiology and Molecular Biology of Plants - The diversity of 11 fatty acid desaturase (fad2) genes has not been investigated between cultivated and wild species in the Carthamus genus. In...     

Three new species of Croton (Euphorbiaceae) from Brazil

Summary   Croton imbricatus L. R. Lima & Pirani from Bahia, C. muellerianus L. R. Lima from Paraná and C. pygmaeus L. R. Lima from Rio Grande do Sul are described and illustrated. They are included in Croton section Lamprocroton (Müll. Arg.) Pax because they are much branched subshrubs or shrubs, bearing leaves with a lepidote indumentum (at least in part), inflorescences lacking bisexual cymules, and pistillate flowers with bifid styles.

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Résumé   Croton imbricatus L. R. Lima & Pirani da Bahia, C. muellerianus L. R. Lima do Paraná e C. pygmaeus L. R. Lima do Rio Grande do Sul s?o descritas e ilustradas. Elas s?o representantes de Croton section Lamprocroton (Müll. Arg.) Pax e tal posicionamento sistemático é devido ao hábito arbustivo ou subarbustivo bastante ramificado, com indumento da folhagem lepidoto pelo menos em parte, inflorescências sem címulas bissexuadas e flores pistiladas com estiletes uma vez bífidos.

     

A novel property of hexokinase inhibition by Favipiravir and proposed advantages over Molnupiravir and 2 Deoxy d glucose in treating COVID-19

Biotechnology Letters - In the wake of SARS-CoV-2’s global spread, human activities from health to social...     

Three new species of <Emphasis Type="Italic">Abarema</Emphasis> (Leguminosae,Mimosoideae) from south-eastern Brazil

Summary  Three new species of Abarema Pittier (Leguminosae) are described and illustrated: A. villosa Iganci & Morim, A. limae Iganci & Morim and A. barnebyana Iganci & Morim from the Brazilian states of Rio de Janeiro, Minas Gerais and Espírito Santo. A. villosa is similar to A. brachystachya (DC.) Barneby & J. W. Grimes, but has villous leaflets, a pilose and truncate ovary and a corolla three times longer than the calyx. Both A. limae and A. barnebyana resemble A. jupunba (Willd.) Britton & Killip in having rhombic leaflets and heteromorphic inflorescences, but are differentiated by leaflet size and indumentum, and pod size and shape.     

Two new Brazilian species and new combinations in <Emphasis Type="Italic">Euploca</Emphasis> (Heliotropiaceae)

Summary  Two new species of Euploca (Heliotropiaceae): E. krapovickasii J. I. M. Melo & Semir and E. pottii J. I. M. Melo & Semir are described for Brazil, and 12 new combinations are proposed in neotropical Euploca. Discussions of taxonomic relationships based on morphology, with illustrations and information on geographical distribution, flowering and fruiting phenology are presented.     

A new species of deep-sea synaphobranchid eel,Haptenchelys parviocularis (Anguilliformes: Synaphobranchidae), from Japan

Ichthyological Research - A new synaphobranchid eel Haptenchelys parviocularis is described on the basis of 15 specimens (467–840&nbsp;mm in total length) collected off the Pacific coast...     

<Emphasis Type="Italic">Dimeria jayachandranii</Emphasis> (Poaceae), a new species from the Western Ghats,India

Summary  A new grass, Dimeria jayachandranii Arisdason & P. Daniel is described and illustrated from the Anamalais Hills on the Western Ghats of Tamil Nadu.     

A new species of grouper,Epinephelus craigi (Perciformes: Epinephelidae), from the South China Sea

Ichthyological Research - A new species of grouper, Epinephelus craigi. sp. nov., from the South China Sea is described from 17 specimens (104–250&nbsp;mm SL). The new species is...     

Genetic diversity of Oxytropis section Xerobia (Fabaceae) in one of the centres of speciation

Genetica - The genetic diversity and phylogenetic relationships of Oxytropis&nbsp;caespitosa, O.&nbsp;grandiflora, O.&nbsp;eriocarpa, O.&nbsp;mixotriche, O.&nbsp;nitens,...     

Microbial diversity and composition in different gut locations of hyperlipidemic mice receiving krill oil

Applied Microbiology and Biotechnology - Low-dose (LD, 100&nbsp;mg&nbsp;kg−1&nbsp;day−1), moderate-dose (MD, 200&nbsp;mg&nbsp;kg−1&nbsp;day−1), and...     

Subpollen particle release from different species of the invasive allergenic genus Ambrosia: the effect of rainwater composition and wind speed

Aerobiologia - Allergen-containing subpollen particles (SPPs) are micrometric or sub-micrometric particles (0.12–5&nbsp;µm) released from pollen. They are able to reach the lower...