A taxonomic study of the genus Padina from Japan, Southeast Asia, and Hawaii based on morphology and gene sequence data (rbcL and cox3) resulted in the recognition of four new species, that is, Padina macrophylla and Padina ishigakiensis from Ryukyu Islands, Japan; Padina maroensis from Hawaii; and Padina usoehtunii from Myanmar and Thailand. All species are bistratose and morphologically diffe...

The RAB5 GTPase ARA6 of Arabidopsis thaliana is known to be involved in endosomal trafficking by targeting vesicles to the plasma membrane. During this process AtARA6 is working in close relationship with the SNARE protein VAMP727 (vesicle associated membrane protein 727). Recently, ARA6 of the characean green algae Chara australis (CaARA6) was shown to have properties similar to AtARA6, pointi...

El crecimiento de los pinos en suelos erosionados es limitado, por la existencia poca materia orgánica. Conocer el diferentes procedencias una especie degradados permite entender su adaptabilidad, lo que favorece toma decisiones reforestaciones posteriores. objetivo del presente trabajo fue conocer 13 Pinus greggii var. y australis establecidas dos localidades Mixteca Alta Oaxaca. Se midió altu...

Clarifying the water uptake patterns and competition among riparian plants under different ecological conveyance conditions is crucial for stability of ecosystem in arid areas. Here, we have utilized Bayesian isotope mixing model to quantify plant sources two typical (Tamarix ramosissima Phragmites australis) along Manas River Xinjiang, Northwest China. The relationship between these evaluated ...

Soil seed banks of alien plant species are sources propagules that play a crucial role in population dynamics. Studies on woody for understanding mechanisms their encroachment natural habitats. This study aimed to compare vertical distribution, density and composition formed by native Cornus sanguinea subsp. C. alba, sericea australis the Southern Hemiboreal zone Europe. Five sites each four ta...

An unexploited mixed species eel stock (Anguilla australis and A. dieffenbachii) in a Waikato pastoral stream, and its modification by fishing pressure.

Preliminary analysis is presented for J, H, and K 0 images of the Corona Australis cloud core. Color-color and color-magnitude diagrams reveal relatively few new cluster members. We conclude that the R Cr A infrared cluster consists of only about 30 members and its size reeects the available reservoir of molecular gas.

Pseudo-nitzschia blooms often occur in coastal and open ocean environments, sometimes leading to the production of the neurotoxin domoic acid that can cause severe negative impacts to higher trophic levels. Increasing evidence suggests a close relationship between phytoplankton bloom and bacterial assemblages, however, the microbial composition and succession during a bloom process is unknown. ...

In Australia the frog family Microhylidae is largely restricted to tropical rainforests of the Wet Tropics region in the northeast of the country, but in that region the family is diverse. Only one species, Cophixalus ornatus, is widespread in the Wet Tropics but there has been suspicion that it may comprise multiple species. A recent study (Hoskin et al. 2011) assessed genetic and phenotypic v...

Leishmaniasis and Chagas disease afflict the poorest countries in the world. The Brazilian flora represents a rich source for the screening of potential antiparasitic compounds. In this work, we tested the total alkaloid and ethanol extracts of nine different plants from Brazilian families which produce isoquinoline alkaloids, to determine their in vitro antiparasitic effect against L. chagasi ...