Literatura Reciente sobre Briofitas

Will the real Syrrhopodon leprieurii please stand up? The influence of topography and distance on phenotypic variation in a widespread Neotropical moss

2013-04-26T07:00:00Z

The Bryologist, Volume 116, Issue 1, Page 58-64, Spring 2013.

Cheilolejeunea laciniata (Lejeuneaceae, Marchantiophyta), a new species from Southeastern Brazil

2013-04-26T07:00:00Z

The Bryologist, Volume 116, Issue 1, Page 53-57, Spring 2013.

An experimental demonstration of rhizautoicy, self-incompatibility, and reproductive investment in Aloina bifrons (Pottiaceae)

2013-04-26T07:00:00Z

The Bryologist, Volume 116, Issue 1, Page 43-52, Spring 2013.

Recent literature on bryophytes—116(1)

2013-04-30T07:00:00Z

The Bryologist, Volume 116, Issue 1, Page 78-88, Spring 2013.

Taxonomy and distribution of Grimmia (Bryophyta) in mountain regions of the Northeastern United States

2013-04-22T07:00:00Z

The Bryologist, Volume 116, Issue 1, Page 28-33, Spring 2013.

The role of mosses in carbon uptake and partitioning in arctic vegetation

2013-04-24T13:40:58Z

Summary

The Arctic is already experiencing changes in plant community composition, so understanding the contribution of different vegetation components to carbon (C) cycling is essential in order to accurately quantify ecosystem C balance. Mosses contribute substantially to biomass, but their impact on carbon use efficiency (CUE) – the proportion of gross primary productivity (GPP) incorporated into growth – and aboveground versus belowground C partitioning is poorly known.
We used ¹³C pulse-labelling to trace assimilated C in mosses (Sphagnum sect. Acutifolia and Pleurozium schreberi) and in dwarf shrub–P. schreberi vegetation in sub-Arctic Finland. Based on ¹³C pools and fluxes, we quantified the contribution of mosses to GPP, CUE and partitioning.
Mosses incorporated 20 ± 9% of total ecosystem GPP into biomass. CUE of Sphagnum was 68–71%, that of P. schreberi was 62–81% and that of dwarf shrub–P. schreberi vegetation was 58–74%. Incorporation of C belowground was 10 ± 2% of GPP, while vascular plants alone incorporated 15 ± 4% of their fixed C belowground.
We have demonstrated that mosses strongly influence C uptake and retention in Arctic dwarf shrub vegetation. They increase CUE, and the fraction of GPP partitioned aboveground. Arctic C models must include mosses to accurately represent ecosystem C dynamics.

The plastid genome of the hornwort Nothoceros aenigmaticus (Dendrocerotaceae): Phylogenetic signal in inverted repeat expansion, pseudogenization, and intron gain [Bryology and Lichenology]

2013-03-04T14:53:39Z

• Premise of the study: The previously sequenced plastome of the hornwort Anthoceros angustus differs from that of other bryophytes by an expanded inverted repeat (IR) and the presence of a type I intron in the 23S ribosomal RNA (rrn23) gene. We assembled the plastome of the hornwort Nothoceros aenigmaticus, contrasted its architecture to that of other bryophytes, and assessed the phylogenetic significance of genomic characters in hornwort evolution.

• Methods: The Nothoceros plastome was reconstructed from shotgun sequencing of genomic DNA. Comparison with the Anthoceros plastome revealed three structural differences. We sequenced these regions in taxa spanning the hornwort phylogeny.

• Key results: The Nothoceros plastome is colinear with other bryophyte plastomes, but differs from the Anthoceros plastome by several gene regions located within the IR in Anthoceros being in the large single-copy region in Nothoceros, by the rrn23 gene lacking an intron, and by the rpl2 being a pseudogene. Comparisons across the hornwort phylogeny indicate that the first two characters are restricted to Anthocerotaceae, while rpl2 pseudogenization diagnoses the sister lineage to Anthocerotaceae.

• Conclusions: The Nothoceros plastome is structurally similar to that of most bryophytes. However, we identified more structural differences within hornworts than have been described within either the mosses or the liverworts. The distribution of the gene duplication involving the IR and an intron in the rrn23 gene are restricted to Anthocerotaceae. Occurrence of the intron and the conserved intron sequence between Anthoceros and distantly related chlorophyte algae may be due to horizontal gene transfer.

Partial generic revision of Barbula (Musci: Pottiaceae): Re-establishment of Hydrogonium and Streblotrichum, and the new genus Gymnobarbula

2013-02-27T16:58:42Z

A new combination of Bryum gossypinum with Synthetodontium (Bryophyta, Bryaceae sensu lato)

2013-03-19T08:04:06Z

Taxonomic notes on Trachylejeunea malangensis Herzog (Lejeuneaceae) known from Borneo

2013-01-05T00:39:52Z

Type studies on Cheilolejeunea (Spruce) Schiffn. (Lejeuneaceae): Brazilian species described by Stephani

2013-01-05T00:39:46Z

New combinations and synonyms in Cheilolejeunea (Spruce) Schiffn. (Lejeuneaceae, Marchantiophyta)

2013-01-05T00:39:39Z

Genetic structure of mosses Pleurozium schreberi (Willd. ex Brid.) Mitt. and Racomitrium lanuginosum (Hedw.) Brid. along altitude gradients in Hokkaido, Japan

2013-01-05T00:39:33Z

New observations on Pterobryella (Mull.Hal.) A.Jaeger and Cyrtopodendron M.Fleisch. in New Caledonia

2013-01-05T00:39:14Z

Three new synonyms of Ulota crispa (Hedw.) Brid. (Orthotrichaceae, Bryopsida)

2013-01-05T00:39:06Z

Correction of the typification of Dicranum longifolium Hedw. ( Paraleucobryum longifolium (Hedw.) Loeske), Dicranaceae

2013-01-05T00:39:00Z

Typification of Dawsonia polytrichoides R.Br. (Musci, Polytrichaceae)

2013-01-05T00:38:52Z

Notes on the bryophytes of the schistose valleys of western Crete, including Asterella africana new to Greece, and an assessment of the conservation status of Rhamphidium purpuratum and Jungermannia handelii

2013-01-05T00:38:46Z

New national and regional bryophyte records, 33

2013-01-05T00:38:38Z

Vascular architecture of the dendroid antipodean moss Dendroligotrichum dendroides (Brid. ex Hedw.) Broth. (Polytrichaceae)

2013-01-05T00:38:32Z