The male germ unit association is independently regulated of GUM in Arabidopsis thaliana
Abstract Cytoplasmic projections (CPs) formed by the generative and sperm cells link the male gametes with the vegetative cell (VC) nucleus, which are required to build the male germ unit (MGU) assemblage in the angiosperm pollen grain. As molecular and genetic controls underlying CP development and formation of the MGU are unknown, it was hypothesized
Abdur Rauf +9 more
wiley +1 more source
Morphological and ultrastructural variations in Scliizjaea pectinata (Schizaeaceae: Pteridophyta)
Schizaea pectinata (L.) Sw. was collected from the extreme ends of its geographical range in South Africa for a study of sporangial development, sporogenesis and tapetal organisation.
B. M. Parkinson
doaj +1 more source
Strategies for conservation of rare and endemic species: characterization of genetic and epigenetic variation and unusual reproductive biology of coastal species from Limonium ovalifolium and Limonium binervosum complexes (Plumbaginaceae) [PDF]
Doutoramento em Biologia - Instituto Superior de AgronomiaLimonium Mill. (Plumbaginaceae) is among the best represented genus in coastal habitats. In Continental Portugal, two taxonomically complex groups, diploid Limonium ovalifolium and tetraploid ...
Róis, Ana Sofia da Silva Valbordo
core
Viabilidad de polen e irregularidades meióticas en una colección de stevia rebaudiana (Bertoni) Bertoni cultivada en Tucumán, Argentina [PDF]
Stevia rebaudiana (Bertoni) Bertoni (2n=2x=22) (Asteraceae family) is a species of economic value due to the presence of steviol glycosides in leaves -mainly stevioside and rebaudioside A- which are non-caloric sugars.
Budeguer, Carlos Jorge +2 more
core
Chromosome doubling in Tripsacum : the production of artificial, sexual tetraploid plants [PDF]
Une collection de cals diploïdes et embryogènes de #Tripsacum$ a été constituée et traitée à la colchicine pour induire des doublements chromosomiques. Des sections de cals présentant des cellules dupliquées ont été identifiées par cytométrie en flux, et
Bello, S. +6 more
core +1 more source
Translation initiation in plants: roles and implications beyond protein synthesis
Protein synthesis is a ubiquitous and essential process in all organisms, including plants. It is primarily regulated at translation initiation stage which is mediated through a number of translation initiation factors (eIFs).
S. Dutt +8 more
doaj +1 more source
Embryogeny and Sporogenesis in Reboulia Hemisphaerica [PDF]
1. The embryo of Reboulia develops without the formation of an octant stage characteristic of certain other Marchantiaceae. 2. The first transverse wall in the fertilized egg separates the cell which is to form the foot from that which is to form the seta and capsule.
openaire +1 more source
[ Objective ] In order to enrich the reproductive biology theory of Polygonatum Mill. and provide the basis for breeding of Polygonatum zanlanscianense Pamp.
LI Huarong +5 more
doaj +1 more source
The transcription factors BEL1 and SPL are required for cytokinin and auxin signaling during ovule development in Arabidopsis [PDF]
Hormones, such as auxin and cytokinin, are involved in the complex molecular network that regulates the coordinated development of plant organs. Genes controlling ovule patterning have been identified and studied in detail; however, the roles of auxin ...
Bencivenga, Stefano +3 more
core +3 more sources
Plants of heterosporous annual fern hydrophyte Salvinia natans L. were collected in ponds of the Desniansky district of Kyiv city during summer time beginning from June, 2015 at one-month interval.
L. V. Voytenko +2 more
doaj +1 more source

