Results 71 to 80 of about 1,486 (189)

Symmetric pollen mitosis I and suppression of pollen mitosis II prevent pollen development in Brachiaria jubata (Gramineae)

open access: yesBrazilian Journal of Medical and Biological Research, 2005
Microsporogenesis and pollen development were analyzed in a tetraploid (2n = 4x = 36) accession of the forage grass Brachiaria jubata (BRA 007820) from the Embrapa Beef Cattle Brachiaria collection that showed partial male sterility.
C. Risso-Pascotto   +3 more
doaj   +1 more source

Suppressive effect of azithromycin on Plasmodium berghei mosquito stage development and apicoplast replication [PDF]

open access: yes, 2010
Background Azithromycin (AZM) is a macrolide antibiotic that displays an excellent safety profile even in children and pregnant women and has been shown to have anti-malarial activity against blood stage Plasmodium falciparum.
Shoichi Shimizu   +4 more
core   +2 more sources

Identification of microspore-active promoters that allow targeted manipulation of gene expression at early stages of microgametogenesis in Arabidopsis

open access: yesBMC Plant Biology, 2006
Background The effective functional analysis of male gametophyte development requires new tools enabling the spatially and temporally controlled expression of both marker genes and modified genes of interest.
Donders Maarten   +7 more
doaj   +1 more source

Anatomía y desarrollo de la flor estaminada, microsporogénesis y microgametogénesis en especies de Lophophytum (Balanophoraceae) en la Argentina [PDF]

open access: yes, 2013
Se estudió la anatomía y desarrollo de la flor estaminada, microsporogénesis y microgametogénesis de Lophophytum leandrii y Lophophytum mirabile subsp. bolivianum, a fin de aportar datos para el conocimiento y taxonomía del género. Las flores estaminadas
Gonzalez, Ana María   +1 more
core   +1 more source

SAS6-like protein in Plasmodium indicates that conoid-associated apical complex proteins persist in invasive stages within the mosquito vector [PDF]

open access: yes, 2016
The SAS6-like (SAS6L) protein, a truncated paralogue of the ubiquitous basal body/centriole protein SAS6, has been characterised recently as a flagellum protein in trypanosomatids, but associated with the conoid in apicomplexan Toxoplasma. The conoid has
A Graindorge   +45 more
core   +4 more sources

Callose (β-1,3 glucan) is essential for Arabidopsis pollen wall patterning, but not tube growth [PDF]

open access: yes, 2005
Background: Callose (β-1,3 glucan) separates developing pollen grains, preventing their underlying walls (exine) from fusing. The pollen tubes that transport sperm to female gametes also contain callose, both in their walls as well as in the plugs that ...
Swanson, Rob
core   +2 more sources

Cytological characterization and allelism testing of anther developmental mutants identified in a screen of maize male sterile lines. [PDF]

open access: yes, 2013
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

Transfection with thymidine kinase permits bromodeoxyuridine labelling of DNA replication in the human malaria parasite Plasmodium falciparum [PDF]

open access: yes, 2015
Background Plasmodium falciparum, the causative agent of severe human malaria, is an early-diverging protozoan whose lifecycle has many unusual features, including its modes of replication.
Merrick, CJ
core   +3 more sources

Калоза: локалізація, функції та синтез в рослинних клітинах [PDF]

open access: yes, 2015
Калоза відіграє ключову роль у формуванні фрагмопласту при цитокенезі, пор у флоемі, в проходженні мікроспорогенезу, функціонуванні замикаючих клітин продихів, у захисті рослинних клітин при біотичних та абіотичних стресах, тому особлива увага приділена ...
Недуха, О.М.
core   +1 more source

Anatomía y desarrollo de la flor estaminada, microsporogénesis y microgametogénesis en especies deLophophytum (Balanophoraceae) en la Argentina

open access: yesBoletín de la Sociedad Argentina de Botánica
Se estudió la anatomía y desarrollo de la flor estaminada, microsporogénesis y microgametogénesis de Lophophytum leandrii y Lophophytum mirabile subsp. bolivianum, a fin de aportar datos para el conocimiento y taxonomía del género.
Héctor A.  Sato , Ana M. Gonzalez
doaj   +1 more source

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