Results 21 to 30 of about 458,877 (349)

Spore Evidence for the Origin of Isoetalean Lycopsids?

open access: yesLife, 2023
A new hypothesis about the origin of isoetalean lycopsids was proposed based on palynological data. The occurrence of three apical papillae on the proximal surfaces of miospores is a significant palynological feature that is clearly defined in both ...
Jiří Bek, Jana Votočková Frojdová
doaj   +1 more source

The Spore Coat

open access: yesMicrobiology Spectrum, 2016
ABSTRACT Spores of Clostridiales and Bacillales are encased in a complex series of concentric shells that provide protection, facilitate germination, and mediate interactions with the environment.
Adam, Driks, Patrick, Eichenberger
openaire   +2 more sources

Evaluation of Microencapsulation Techniques for MICP Bacterial Spores Applied in Self-Healing Concrete

open access: yesScientific Reports, 2019
Concrete cracks must be repaired promptly in order to prevent structural damage and to prolong the structural life of the building (or other such construction). Biological self-healing concrete is a recent alternative technology involving the biochemical
W. Pungrasmi   +3 more
semanticscholar   +1 more source

Ocorrência de Fungos Micorrízicos Arbusculares em resíduo da mineração de bauxita revegetado com espécies arbóreas Arbuscular mycorrhizal fungi occurrence in bauxite mining residue planted to tree species

open access: yesActa Botânica Brasílica, 2007
Avaliou-se a ocorrência de fungos micorrízicos arbusculares (FMAs) em tanques contendo resíduo da mineração de bauxita cultivados com espécies arbóreas inoculadas com Glomus clarum Nicol.
Ana Lucy Caproni   +3 more
doaj   +1 more source

Spore Peptidoglycan

open access: yesMicrobiology Spectrum, 2015
ABSTRACT Bacterial endospores possess multiple integument layers, one of which is the cortex peptidoglycan wall. The cortex is essential for the maintenance of spore core dehydration and dormancy and contains structural modifications that differentiate it from vegetative cell peptidoglycan and determine its fate during spore ...
David L, Popham, Casey B, Bernhards
openaire   +2 more sources

The Dosage of the Derivative of Clostridium Ghonii (DCG) Spores Dictates Whether an IFNγ/IL-9 or a Strong IFNγ Response Is Elicited in TC-1 Tumour Bearing Mice

open access: yesBioMed Research International, 2019
Background Anaerobic Clostridial spores (CG) cause significant oncolysis in hypoxic tumour microenvironment and result in tumour regression in both animal models and clinical trials.
Guoying Ni   +7 more
semanticscholar   +1 more source

The dynamic spore [PDF]

open access: yesProceedings of the National Academy of Sciences, 2003
Most bacteria can, at least to some degree, hunker down during periods of stress and wait for good times to return. No cells, however, do this as effectively as those Bacilli and Clostridia that form spores. Dormant cells produced by these bacteria can survive most environmental challenges found on earth and even a few in outer space and can remain ...
openaire   +2 more sources

Spores and Spore Formers

open access: yes, 2017
Bacterial spore formers have been the focus of intense study for almost half a century centered primarily on Bacillus subtilis. This research has given us a detailed picture of the genetic, physiological and biochemical mechanisms that allow bacteria to survive harsh environmental conditions by forming highly robust spores. Although, many basic aspects
Ezio Ricca   +4 more
openaire   +3 more sources

A revised stratigraphy for the Palaeocene Agatdalen flora (Nuussuaq Peninsula, western Greenland): correlating fossiliferous outcrops, macrofossils, and palynological samples from phosphoritic nodules

open access: yesActa Palaeobotanica, 2016
The Cretaceous and Palaeogene floras of western Greenland that were initially described as part of the classical work “Flora fossilis arctica” by Oswald Heer in the 19th century are currently under revision.
Grímsson Friđgeir   +3 more
doaj   +1 more source

Germination of Spores of the Orders Bacillales and Clostridiales.

open access: yesAnnual Review of Microbiology, 2017
Dormant Bacillales and Clostridiales spores begin to grow when small molecules (germinants) trigger germination, potentially leading to food spoilage or disease.
P. Setlow, Shiwei Wang, Yong-qing Li
semanticscholar   +1 more source

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