Results 51 to 60 of about 1,435 (186)
Leaf Phenolics of Gunnera Manicata (Gunneraceae) [PDF]
Foliar material of Gunnera manicata (Gunneraceae) was examined for the presence of phenolics using standard extraction and identification techniques. Two lIavonoids, quercetin 3-0-ga1actoside and quercetin 3-0-g1ucoside and an unidentified ellagitannin ...
Doyle, Michael F., Scogin, Ron
core +3 more sources
Phylogeography of a Tertiary relict plant, Meconopsis cambrica (Papaveraceae), implies the existence of northern refugia for a temperate herb [PDF]
The perennial herb Meconopsis cambrica, a western European endemic, is the only European species of the otherwise Himalayan genus Meconopsis and has been interpreted as a Tertiary relict species.
Kadereit, Joachim W.+2 more
core +3 more sources
Life History Traits of Talicada nyseus (Lepidoptera: Lycaenidae) Butterfly Under Laboratory Conditions [PDF]
The butterfly Talicada nyseus G. (Lepidoptera: Lycaenidae) is abundant in India and Sri Lanka (Karunaratne, et al., 2002). In India, this butterfly is chiefly found in the peninsular area, Maharashtra, Karnataka, Punjab and foothills of the Himalayas ...
Akhila, C.M.+8 more
core +1 more source
Explosive Radiation of Malpighiales Supports a Mid-Cretaceous Origin of Modern Tropical Rain Forests [PDF]
Fossil data have been interpreted as indicating that Late Cretaceous tropical forests were open and dry adapted and that modern closed-canopy rain forest did not originate until after the Cretaceous-Tertiary (K/T) boundary.
Davis, Charles+4 more
core +1 more source
Steric Constraints as a Global Regulation of Growing Leaf Shape [PDF]
Shape is one of the important characteristics for the structures observed in living organisms. Whereas biologists have proposed models where the shape is controlled on a molecular level [1], physicists, following Turing [2] and d'Arcy Thomson [3], have ...
Couturier, Etienne+2 more
core +5 more sources
Background Chrysosplenium L. (Saxifragaceae) is a genus of plants widely distributed in Northern Hemisphere and usually found in moist, shaded valleys and mountain slopes.
Zhihua Wu+6 more
doaj +1 more source
INDEPENDENT ORIGINATION OF FLORAL ZYGOMORPHY, A PREDICTED ADAPTIVE RESPONSE TO POLLINATORS: DEVELOPMENTAL AND GENETIC MECHANISMS [PDF]
Observations of floral development indicate that floral organ initiation in pentapetalous flowers more commonly results in a medially positioned abaxial petal (MAB) than in a medially positioned adaxial petal (MAD), where the medial plane is defined by ...
Bukhari, Ghadeer, Zhang, Wenheng
core +1 more source
Placing Nothophylica piloburmensis from Cretaceous amber into the angiosperm phylogeny
Abstract Recently, we redescribed an amber inclusion from mid‐Cretaceous Kachin amber of Myanmar, previously assigned to the extant genus Phylica in Rhamnaceae (core eudicots), and placed it in a new fossil‐genus, Nothophylica. Based on our reconstructions, we identified new floral features and instead suggested affinities within magnoliids, especially
Simon Beurel+4 more
wiley +1 more source
Accurate taxonomic identification of plant materials in herbal medicines is important for product quality control. The genus Paeonia (Saxifragales) is the source of the herbal preparations Paeoniae Radix (Paeoniae Radix Alba and Paeoniae Radix Rubra) and
Wook Jin Kim+3 more
doaj +1 more source
This paper conducted comparative genomic analyses among seven UCYN‐A strains in genome content, gene structure, and key metabolic protein genes. In general, our results demonstrated considerable disparities between UCYN‐A1 and UCYN‐A2, providing insights into the evolution of UCYN‐A and nitroplast.
Shiyun Han+9 more
wiley +1 more source