Results 141 to 150 of about 9,779 (269)

The Biology of Canadian Weeds. 131. \u3cem\u3ePolygonum aviculare\u3c/em\u3e L. [PDF]

open access: yes, 2005
A review and assessment of biological information as well as personal data are provided for Polygonum aviculare in Canada. The species has been revised taxonomically and the six subspecies that occur in Canada are presented.
Costea, Mihai, Tardif, François J.
core   +1 more source

Flower and floral trichome morphology of species of Dyckia Schult. f. (Bromeliaceae, Pitcairnioideae), and their importance to species characterization and genus taxonomy

open access: yesActa Botânica Brasílica
This paper presents a morphological analysis of the flower and floral trichomes of three rare species of Dyckia: Dyckia ibicuiensis, D. polyclada and D. racinae.
Jordano Dorval Tavares de Carvalho   +2 more
doaj   +1 more source

Progress and problems in the assessment of flower morphology in higher-level systematics [PDF]

open access: yes, 2018
Floral features used for characterization of higher-level angiosperm taxa (families, orders, and above) are assessed following a comparison of earlier (precladistic/premolecular) and current classifications.
Endress, Peter, Matthews, Merran
core  

Anatomy and RNA-Seq reveal important gene pathways regulating sex differentiation in a functionally Androdioecious tree, Tapiscia sinensis

open access: yesBMC Plant Biology, 2019
Background Gametogenesis is a key step in the production of ovules or pollen in higher plants. The sex-determination aspects of gametogenesis have been well characterized in the model plant Arabidopsis.
Gui-Liang Xin   +5 more
doaj   +1 more source

The FRUITFULL MADS-box gene mediates cell differentiation during Arabidopsis fruit development [PDF]

open access: yes, 1998
Fruit morphogenesis is a process unique to flowering plants, and yet little is known about its developmental control, Following fertilization, fruits typically undergo a dramatic enlargement that is accompanied by differentiation of numerous distinct ...
Ferrandiz, C.   +3 more
core  

Direct ETTIN-auxin interaction controls chromatin state in gynoecium development [PDF]

open access: gold, 2019
André Kuhn   +4 more
openalex   +1 more source

Embryological features and bacterial transmission to gynoecium and ovule in Myrsine laetevirens (Myrsinaceae) [PDF]

open access: yes, 1998
Fil: Otegui, Marisa Silvina. Instituto de Fisiología Vegetal (INFIVE). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Maldonado, Sara. Facultad de Ciencias Exactas y Naturales. Universidad Nacional de Buenos Aires;
Maldonado, Sara, Otegui, Marisa Silvina
core  

Disruption of an RNA helicase/RNAse III gene in Arabidopsis causes unregulated cell division in floral meristems [PDF]

open access: yes, 1999
Arabidopsis thaliana floral meristems are determinate structures that produce a defined number of organs, after which cell division ceases. A new recessive mutant, carpel factory (caf), converts the floral meristems to an indeterminate state.
Jacobsen, Steven E.   +2 more
core  

Abnormal flowers and pattern formation in floral [PDF]

open access: yes, 1989
“From our acquaintance with this abnormal enabled to unveil the secrets that normal us, and to see distinctly what, from the regular we can only infer.” - J. W.
Bowman, John L.   +2 more
core  

Home - About - Disclaimer - Privacy