Results 31 to 40 of about 5,131 (204)
Pollen development in Mill. (Annonaceae). Implications for the evolution of aggregated pollen [PDF]
In most flowering plants, pollen is dispersed as monads. However, aggregated pollen shedding in groups of four or more pollen grains has arisen independently several times during angiosperm evolution.
Lora, Jorge +4 more
core +1 more source
Identifying the transporters of different flavonoids in plants [PDF]
We recently identified a new component of flavonoid transport pathways in Arabidopsis. The MATE protein FFT (Flower Flavonoid Transporter) is primarily found in guard cells and seedling roots, and mutation of the transporter results in floral and growth ...
Beverley J. Glover +3 more
core +2 more sources
Kanamycin resistance during in vitro development of pollen from transgenic tomato plants [PDF]
Effects of kanamycin on pollen germination and tube growth of pollen from non-transformed plants and from transgenic tomato plants containing a chimaeric kanamycin resistance gene were determined. Germination of pollen was not affected by the addition of
AP Czernilofsky +19 more
core +2 more sources
We analyzed the microgametogenesis and microsporogenesis of the male flowers of the holoparasitic Helosis cayennensis (Sw.) Spreng. var. cayennensis using optical and scanning electron microscopy.
Ana María González +2 more
doaj +1 more source
Cytological characterization and allelism testing of anther developmental mutants identified in a screen of maize male sterile lines. [PDF]
Proper regulation of anther differentiation is crucial for producing functional pollen, and defects in or absence of any anther cell type result in male sterility.
Cande, William Zacheus +7 more
core +2 more sources
EMS induced intercellular chromatin transmigration in Papaver somniferum L.
The phenomenon of chromatin migration was observed during microsporogenesis in an ethyl methane sulphonate (EMS) treated population of poppy, which is an important medicinal plant.
Girjesh KUMAR, Sana NASEEM
doaj +1 more source
Annonaceae, comprising approximately 107 genera and 2400 species, is the largest family among early-divergent Magnoliales. Previous studies have concentrated on the binding mechanism that holds together the four members of tetrads in Annonaceae. However,
Bingxin Li +4 more
doaj +1 more source
Microsporogenesis and Embryogenesis in Quercus [PDF]
Representative species from two subgenera in the genus Quercus were examined for floral structure and phenology, microsporogenesis, and embryogenesis. The species selected for investigation were: Quercus alba in the Lepidobalanus subgenera, and Quercus coccinea and Quercus ilicifolia from the Erythrobalanus group.
openaire +3 more sources
Meiose e viabilidade polínica na família Araceae Meiosis and pollen viability in Araceae family
O objetivo deste trabalho foi analisar a microsporogênese e a viabilidade dos grãos de pólen em 17 espécies de aráceas coletadas no Rio Grande do Sul, Brasil.
Maria Goreti Senna Corrêa +5 more
doaj +1 more source
Wild and domesticated emmer (ВВАА, 2n = 28) are of significant interest for expanding the genetic diversity of common wheat as sources of a high protein and microelement grain content, resistance to many biotic and abiotic factors. Particular interest in
О. A. Orlovskaya +3 more
doaj +1 more source

