Results 21 to 30 of about 5,131 (204)

Microsporogenesis in Monocotyledons [PDF]

open access: yesAnnals of Botany, 1999
This paper critically reviews the distribution of microsporogenesis types in relation to recent concepts in monocot systematics. Two basic types of microsporogenesis are generally recognized: successive and simultaneous, although intermediates occur.
openaire   +1 more source

Microsporogenesis of peach (Prunus persica L. Batsch) varieties

open access: yesInternational Journal of Horticultural Science, 2002
Bud dormancy during winter is a critical factor in peach production in Hungary. The yield is determined basically by the survival rate of flower buds during winter frosts and by their ability to develop normal floral organs.
L. Szalay, B. Timon, Z. Szabó, J. Papp
doaj   +1 more source

Disturbances in microsporogenesis and pollen grain development in Gagea lutea (L.) Ker. Gaw.

open access: yesActa Agrobotanica, 2012
The meiotic division of microsporocytes and pollen grain development in Gagea lutea (L.) Ker.-Gaw. (Liliaceae) with fluorescence microscope (excitation light 400 nm) was observed after squashing the anthers in DAPI solution (fluorochrom dying DNA). Up to
Ewa Szczuka   +4 more
doaj   +1 more source

Chondriokinesis during microsporogenesis in plants [PDF]

open access: yesPlanta, 2017
Chondriokinesis represents a highly orchestrated process of organelle rearrangement in all dividing plant and animal cells, ensuring a proper course of karyokinesis and cytokinesis. This process plays a key role in male gametophyte formation. Chondriokinesis is a regular rearrangement of cell organelles, assuring their regular inheritance, during both ...
openaire   +2 more sources

Dynamics of male meiotic recombination frequency during plant development using Fluorescent Tagged Lines in Arabidopsis thaliana [PDF]

open access: yes, 2017
Meiotic homologous recombination plays a central role in creating genetic variability, making it an essential biological process relevant to evolution and crop breeding.
De Storme, Nico, Geelen, Danny, Li, Fan
core   +1 more source

Analysis of the Maize dicer-like1 Mutant, fuzzy tassel, Implicates MicroRNAs in Anther Maturation and Dehiscence [PDF]

open access: yes, 2016
Sexual reproduction in plants requires development of haploid gametophytes from somatic tissues. Pollen is the male gametophyte and develops within the stamen; defects in the somatic tissues of the stamen and in the male gametophyte itself can result in ...
A Nag   +63 more
core   +9 more sources

Dynamic patterns of repeats and retrotransposons in the centromeres of Humulus lupulus L. [PDF]

open access: yesNew Phytol
Summary The centromere has a conserved function across eukaryotes; however, the associated DNA sequences exhibit remarkable diversity in both size and structure. In plants, some species possess well‐defined centromeres dominated by tandem satellite repeats and centromeric retrotransposons, while others have centromeric regions composed almost entirely ...
Horáková L   +13 more
europepmc   +2 more sources

Cold-induced male meiotic restitution in Arabidopsis thaliana is not mediated by GA-DELLA signaling [PDF]

open access: yes, 2018
Short periods of cold stress induce male meiotic restitution and diploid pollen formation in Arabidopsis thaliana by specifically interfering with male meiotic cytokinesis.
De Storme, Nico   +2 more
core   +2 more sources

Meiotic behavior of two grapevine somatic mutants with ornamental potential

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2023
‘Niagara Steck’ and ‘Niagara Variegada’ are two grapevine varieties that arose spontaneously as somatic mutants of ‘Niagara Rosada’. Berries characterize ‘Niagara Steck’ at young stages exhibiting a remarkable brown reticulated structure on the ...
Neiva I. PIEROZZI, Mara FERNANDES MOURA
doaj   +1 more source

The Arabidopsis thaliana SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASES1 and 2 control male sporogenesis [PDF]

open access: yes, 2005
The Arabidopsis thaliana SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE (SERK) family of plasma membrane receptors consists of five closely related members. The SERK1 and SERK2 genes show a complex expression pattern throughout development.
Albrecht, Catherine   +4 more
core   +3 more sources

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