Results 51 to 60 of about 5,255 (220)

Endocranial anatomy of the earliest Cretaceous European neosuchian crocodyliform Pholidosaurus purbeckensis provides new evidence for the ecological evolution of Pholidosauridae

Journal of Anatomy, EarlyView.
We present new insights into the internal cranial anatomy of the neosuchian crocodyliform Pholidosaurus purbeckensis, based on CT‐scan data of material from the lowermost Cretaceous Purbeck Limestone Group, southern UK. From the study of the endocast, we obtained new information on the phylogeny and the ecological evolution of the Family ...
Leonardo Barbini, Paul M. J. Burke, Ilaria Caddeo, Marco Romano, Philip D. Mannion   +4 more
wiley   +1 more source

Phylogeny of characeae based on 18S rDNA, rbcL and atpB gene sequences

四川大学学报. 自然科学版, 2020
In order to find a suitable molecular marker for the classification of Charophytes, some of the Charophytes were used as material to make a phylogenetic study by analyzing the diversity of 18S rDNA、rbcL、atpB and 18S rDNA、rbcL、atpB threegene combination ...
REN Ling-Xuan, FANG Yan, SUN Shuang, BAI Huan, QING Ren-Wei, LAN Li-Qiong   +5 more
doaj  

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, EarlyView.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Comparative study of the oospore morphology of two populations of a rare species Chara baueri A. Braun in Cedynia (Poland) and Batzlow (Germany)

Acta Societatis Botanicorum Poloniae, 2012
Morphological features of oospores of Chara baueri A. Braun, one of the rarest charophyte species worldwide, were studied based on 100 oospores collected from a small and temporarily dried mid-field pond near Cedynia, Western Poland.
Andrzej Pukacz, Patrycja Boszke, Mariusz J. Pełechaty, Uwe Raabe   +3 more
doaj   +1 more source

An approach to the use of macrophytes for monitoring standing waters [PDF]

, 2001
Under the EC Water Framework Directive (WFD), each Member State is required to devise a comprehensive national monitoring programme for surface waters, incorporating hydromorphological, physico-chemical and biological elements.
Palmer, Margaret A.
core  

Barley HvBODYGUARD1 controls cuticular specialisations regulated by SHINE transcription factors

New Phytologist, EarlyView.
Cuticle defects result from defective HvBDG1 alleles. Summary Land plants secrete a protective outer cuticular layer with diverse functions. Barley (Hordeum vulgare L.) develops two cuticular specialisations: the β‐diketone rich wax bloom on vegetative tissues and an adherent grain surface which sticks to the hulls, leading to barley's distinctive ...
Trisha McAllister, Chiara Campoli, Linsan Liu, Tansy Chia, S. Ronan Fisher, Richard Horsnell, Alan R. Prescott, Jennifer Shoesmith, Mhmoud Eskan, Alasdair Iredale, Mirjam Nuter, Luke Ramsay, Micha M. Bayer, Linda Milne, Miriam Schreiber, Yogeswari Rajarathinam, Vanessa Wahl, Robbie Waugh, James Cockram, Sarah M. McKim   +19 more
wiley   +1 more source

A Neoselachian shark from the non-marine Wessex Formation (Wealden Group: early Cretaceous, Barremian) of the Isle of Wight, southern England [PDF]

, 2006
Bulk screening of Early Cretaceous (Barremian) Wessex Formation strata exposed on the south-east coast of the Isle of Wight, southern England, has resulted in the recovery of neoselachian shark teeth referred to the scyliorhinid Palaeoscyllium. These are
Sweetman, Steven C., Underwood, Charlie J.   +1 more
core   +1 more source

CNGCs in Marchantia paleacea uncouple arbuscular mycorrhizal symbiosis and rhizoid development

New Phytologist, EarlyView.
Rhizoid growth and AM fungal infection are uncoupled. Summary In Marchantia paleacea, MpaDMI1‐dependent nuclear Ca2+ oscillations are essential for arbuscular mycorrhizal (AM) fungal colonisation, indicating that endosymbiosis‐mediated nuclear Ca2+ signalling is a conserved feature of land plant–AM symbiosis.
Anson Ho Ching Lam, Aisling Cooke, Jake Richardson, Myriam Charpentier   +3 more
wiley   +1 more source

Primary Cell Wall Composition of Bryophytes and Charophytes [PDF]

Annals of Botany, 2003
Major differences in primary cell wall (PCW) components between non-vascular plant taxa are reported. (1) Xyloglucan: driselase digestion yielded isoprimeverose (the diagnostic repeat unit of xyloglucan) from PCW-rich material of Anthoceros (a hornwort), mosses and both leafy and thalloid liverworts, as well as numerous vascular plants, showing ...
Zoë A, Popper, Stephen C, Fry
openaire   +2 more sources

Plastid DNA sequences and oospore characters of some European taxa of Tolypella section Tolypella (Characeae) identify five clusters, including one new cryptic Tolypella taxon from Sardinia, but they do not coincide with current morphological descriptions

Frontiers in Plant Science, 2023
In Europe, the genus Tolypella (Characeae) comprises four to eight Tolypella taxa in sections Rothia and Tolypella that have been distinguished by vegetative morphology and gametangial characters such as antheridial size and oospore wall ornamentation ...
Anja Holzhausen, Anja Holzhausen, Petra Nowak, Andreas Ballot, Ralf Becker, Jasmina Gebert, Thomas Gregor, Kenneth G. Karol, Elisabeth Lambert, William Pérez, Uwe Raabe, Susanne C. Schneider, Nick Stewart, Klaus van de Weyer, Volker Wilde, Hendrik Schubert   +15 more
doaj   +1 more source