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Full-Text Articles in Life Sciences
A Comparative Analysis Of The Relative Water Content Of The Pollen Of Early Diverging Angiosperms, Andrew Robert Moffatt
A Comparative Analysis Of The Relative Water Content Of The Pollen Of Early Diverging Angiosperms, Andrew Robert Moffatt
Chancellor’s Honors Program Projects
No abstract provided.
Air Pollution Effects On Flavonoids In Pollen Grains Of Some Ornamental Plants, Farkhondeh Rezanejad
Air Pollution Effects On Flavonoids In Pollen Grains Of Some Ornamental Plants, Farkhondeh Rezanejad
Turkish Journal of Botany
Phenolic compounds function as stress indicators because they accumulate to high levels in many plant tissues in response to a wide range of biotic and abiotic signals. These compounds are involved in pollen development, pollination, pollen germination, and pollen tube growth. The mature pollen grains of Spartium junceum L., Lagerstroemia indica L., Thuja orientalis L., and Petunia hybrida L. collected from control (less polluted) and polluted areas [mainly SO_2, NO_2, CO, hydrocarbons (HC), and airborne particulate material (APM)]. The ethanolic aquatic extracts of pollen grains were prepared. The extracts were analysed by high pressure liquid chromatography (HPLC). HPLC analysis demonstrated …
Rugaspermum Minuta - A New Species Of The Seed Genus Rugaspermum From The Triassic Of Nidpur, India, Nupur Bhowmik, Shabnam Parveen
Rugaspermum Minuta - A New Species Of The Seed Genus Rugaspermum From The Triassic Of Nidpur, India, Nupur Bhowmik, Shabnam Parveen
Turkish Journal of Botany
This paper provides a description of a new species of Rugaspermum D.D.Pant & Basu, R. minuta Bhowmik & Parveen, from the Nidpur Triassic beds. The dispersed seeds were recovered after macerating large chunks of shale in hydrofluoric acid. The structurally preserved compressed seed is platyspermic, orthotropus, and oval- to barrel-shaped with a short beak-like micropyle. The surfaces of the seeds are wrinkled and there is a wide lateral ridge running from the apex to the base on both the obverse and reverse sides. Upon maceration, the seed yielded 4 membranes: outer, inner, nucellar, and megaspore membranes. The outer cuticle of …
Verbascum Hasbenlii (Scrophulariaceae), A New Species From Turkey, Zeki̇ Aytaç, Hayri̇ Duman
Verbascum Hasbenlii (Scrophulariaceae), A New Species From Turkey, Zeki̇ Aytaç, Hayri̇ Duman
Turkish Journal of Botany
Verbascum hasbenlii Aytaç & H.Duman sp. nov. (sect. Bothrosperma Murb.) is described and illustrated from Turkey. This new species was collected in B1 Çan (Çanakkale Province) area. V. hasbenlii appears to be closely allied to V. luciliae (Boiss.) O.Kuntze and V. haraldi-adnani Parolly & Eren. Its affinities with this and other related species are discussed. The characteristic features of pollen, seed, stomata structure, and hairs are studied using a scanning electron microscope and the distribution of the new species in Turkey is given.
Analysis Of Chenopodiaceae-Amaranthaceae Airborne Pollen In Salamanca, Spain, David Rodríguez De La Cruz, Estefania Sanchez-Reyes, José Sánchez-Sánchez
Analysis Of Chenopodiaceae-Amaranthaceae Airborne Pollen In Salamanca, Spain, David Rodríguez De La Cruz, Estefania Sanchez-Reyes, José Sánchez-Sánchez
Turkish Journal of Botany
Chenopodiaceae-Amaranthaceae pollen represents an allergenic risk for pollen-sensitive people. The aim of this study was to describe the Chenopodiaceae-Amaranthaceae pollen dynamics in the atmosphere of Salamanca (mid-west Spain) during the years 2000-2007. Measurements were performed by the volumetric method using a Burkard spore trap located in the urban centre at the height of 20 m above ground level. This pollen type was mainly detected in the atmosphere between late spring and late summer, with an Atmospheric Pollen Season (APS) registered between late May and early October and maximum concentrations detected in August. The intradiurnal pattern, calculated by means of 3 …