Results 1 to 10 of about 1,547 (181)

Antimalarial potential of Matricaria chamomilla-derived MgO nanoparticles against Plasmodium falciparum strains: an experimental study. [PDF]

BMC Complement Med Ther
Farzaneh Z, Hanifian H, Nateghpour M, Hasanpour G, Raeisi A, Shabani M, Farivar L, Khezri A, Dehdast SA, Shahsavari S.   +9 more
europepmc   +1 more source

Climate Change Drives Divergent Potential Habitat Dynamics of Invasive and Native Noxious Asteraceae Weeds in Yunnan Grasslands. [PDF]

Plants (Basel)
Yang J, Chen P.
europepmc   +1 more source

Gametogenesis and fertilization in Pteridium

Botanical Journal of the Linnean Society, 1976
The principal events in spermatogenesis, in particular those occurring in the final stage in which the isodiametric spermatocyte is transformed into the helical spermatozoid, are described. The origin of the blepharoplast remains obscure, but its subsequent development is now well known. Firm information is still lacking concerning the manner of growth
PETER R. BELL, JEFFREY G. DUCKETT
openaire   +1 more source

Pteridium aquilinum

2000
Abstract Bracken fern (Pteridium aquilinum) is a plant (family Polydodiaceae) containing thiaminase I; this enzyme causes thiamine and thiamine diphosphate depletion. Ingestion of the fern by livestock causes significant neurotoxicity, which is dependent on plant part, season, maturity of the plant, and rainfall.
openaire   +1 more source

Phenolic constituents of Pteridium esculentum

Phytochemistry, 1993
Abstract Two new compounds, (5 S ,6 S ,9 S ,10 S )-15-hydroxycadina-3,11-dien-2-one and p -hydroxystyrene β-vicianoside, together with p ...
Nobutoshi Tanaka, Hiroki Yuhara, Hiroshi Wada, Takao Murakami, Richard C. Cambie, John E. Braggins   +5 more
openaire   +1 more source

Pteridium aquilinum

2006
Enthält 2 Bilder des Adlerfarns.
openaire   +1 more source

The movements of spermatozoa of bracken (Pteridium aquilinum)

Experimental Cell Research, 1954
Abstract 1. 1. The movement of bracken sperms in tap water is random, the mean square displacement being proportional to the time. 2. 2. It is known that when sperms arrive at the mucilage at the necks of mature archegonia they become immobilised; it has been found in the present work that this immobilisation is irreversible. 3. 3. Sperms
openaire   +2 more sources

A Study of Apospory in Pteridium aquilinum

American Fern Journal, 1949
thesis on the Ferns of Quebec,7 Brother Marie-Victorin included this fern, remarking that since it occurs in Vermont almost up to the Canadian boundary, it is surely present in Quebec also. Although this was doubted by others, the fern was later discovered near Bedford, in Quebec a few miles north of the Vermont border, as reported by Mousley.8 In ...
openaire   +1 more source

Gnarled Trichomes: An Understudied Character in Pteridium

American Fern Journal, 1996
-One of three characteristics used by Tryon to distinguish "southern" bracken ferns (Pteridium) of subsp. caudatum from "northern" taxa assigned to subsp. aquilinum is the farinaceous appearance of the intervein areas on the lower surface of the ultimate laminal segments.
John A. Thomson, Anthony B. Martin
openaire   +1 more source