Results 11 to 20 of about 1,993 (204)

Sporogenesis and Toxin a Production by Clostridium Difficile [PDF]

open access: yesJournal of Medical Microbiology, 1986
The kinetics of spore production by Clostridium difficile were not paralleled by release of C. difficile toxin A in vitro. Toxin A was not found to be associated with either purified whole spores or spore coats. Residual traces of toxin A detected in spore contents were almost certainly derived from contaminating vegetative cell debris.
J M, Ketley   +5 more
openaire   +3 more sources

The subunit of RNA N6-methyladenosine methyltransferase OsFIP regulates early degeneration of microspores in rice.

open access: yesPLoS Genetics, 2019
N6-Methyladenosine (m6A) RNA methylation plays important roles during development in different species. However, knowledge of m6A RNA methylation in monocots remains limited.
Fan Zhang   +10 more
doaj   +2 more sources

Sporogenesis in Pallavicinia

open access: yesBotanical Gazette, 1906
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Farmer, J. B.
openaire   +4 more sources

[Sporogenesis, sporoderm and mature spore ornamentation in Lycopodiaceae].

open access: yesRevista de biologia tropical, 2014
Estudios sobre aspectos reproductivos, morfología y ultraestructura de las esporas de Lycopodiaceae no son abundantes en la literatura científica y constituyen información esencial para apoyar las relaciones taxonómicas y sistemáticas en el grupo. Con el fin de completar la información existente, añadiendo contribuciones nuevas y más amplias sobre ...
Rincón Baron, Edgar Javier   +4 more
openaire   +4 more sources

Sporogenesis, gametogenesis, and progamic phase in Alstroemeria

open access: yesCanadian Journal of Botany, 1996
The sexual reproduction biology of Alstroemeria was studied histologically. The processes of sporogenesis and gametogenesis were described in relation to the development of the male and female organs. Comparative developmental stages in Alstroemeria take much longer than they do in tobacco.
de Jeu, M.J.   +2 more
openaire   +3 more sources

The WOPR Protein Ros1 Is a Master Regulator of Sporogenesis and Late Effector Gene Expression in the Maize Pathogen Ustilago maydis. [PDF]

open access: yesPLoS Pathogens, 2016
The biotrophic basidiomycete fungus Ustilago maydis causes smut disease in maize. Hallmarks of the disease are large tumors that develop on all aerial parts of the host in which dark pigmented teliospores are formed.
Marie Tollot   +6 more
doaj   +2 more sources

Mutante espontâneo de Bacillus licheniformis bloqueado no estágio I da esporogênese, possuidor de metabolismo respiratório aumentado A spontaneous mutant of Bacillus licheniformis with increased respiratory metabolism, blocked in stage I of sporogenesis

open access: yesMemorias do Instituto Oswaldo Cruz, 1976
Um mutante espontâneo de Bacillus licheniformis, derivado da amostra esporogênica 2390, foi estudado com vistas ao reconhecimento do estágio da evolução para esporo em que o mesmo se encontrava bloqueado.
Leon Rabinovitch   +3 more
doaj   +2 more sources

Sporogenesis in Conifers

open access: yes, 1989
Publisher Summary In a microsporangium there are several hundred sporogenous cells that consequently yield many pollen grains, while in a megasporangium the single tetrad is formed from only one. The term sporogenous cell may then be applied to any destined to give rise to a meiotic cell once the archaesporium has differentiated, the remainder ...
Roger I. Pennell
openaire   +2 more sources

Regulation of Bacterial Sporogenesis

open access: yes, 1982
Previous speakers have stressed some important features of gene expression and regulation in different eukaryotic systems. My communication will deal with similar problems but revealed in a prokaryotic system, endowed with the properties to undergo differentiation.
J. Szulmajster
openaire   +2 more sources

Killing me softly - Programmed cell death in plant reproduction from sporogenesis to fertilization. [PDF]

open access: yesCurr Opin Plant Biol, 2022
Regulated or programmed cell death (RCD or PCD) is a fundamental biological principle integral to a considerable variety of functions in multicellular organisms. In plants, different PCD processes are part of biotic and abiotic stress responses, but also
Xie F, Vahldick H, Lin Z, Nowack MK.
europepmc   +2 more sources

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