Results 51 to 60 of about 4,169 (206)

Cytoembryological aspects of reduced seed setting in Ranunculus ficaria L. subsp. bulbifer (Marsden-Jones) Lawalrée

open access: yesActa Societatis Botanicorum Poloniae, 2014
Highly disturbed micro- and macro-sporogenesis in R. ficaria L. subsp. bulbifer gives rise to cytologically and genetically unbalanced reproductive cells. In plants from different papulatians, pollen degenerates in various percentages.
Helena Wcisło, Eugenia Pogan
doaj   +1 more source

Estudo sôbre a esporulação de uma amostra de Bacillus: II - Importância dos íons Mn e Mg na indução do processo

open access: yesMemorias do Instituto Oswaldo Cruz, 1971
Foi verificado que a esporogênese de B. licheniformis, amostra 23910, sòmente ocorre quando Mn[2+] ou Mg[2+] etão presentes, em meio sintético, nas concentrações de 0,1 mg%.
Leon Rabinovitch
doaj   +1 more source

Sporogenesis, gametogenesis and pollen morphology of Solanum japonense and S. septemlobum (Solanaceae) [PDF]

open access: yesArchives of Biological Sciences, 2018
Solanum japonense Nakai and S. septemlobum Bunge are medicinal plants used chaotically in traditional Chinese medicine because they have the same Chinese name, Shuyangquan.
Liu Yanshuang, Gu Lei, Liu Jiaxi
doaj   +1 more source

The role of plant hormones on the reproductive success of red and brown algae

open access: yesFrontiers in Plant Science, 2022
Seaweeds or macroalgae are important primary producers that serve as a habitat for functioning ecosystems. A sustainable production of macroalgae has been maintained by a diverse range of life cycles.
Toshiki Uji, Hiroyuki Mizuta
doaj   +1 more source

Transfer cells in Horneophyton lignieri illuminate the origin of vascular tissues in land plants

open access: yesNew Phytologist, EarlyView.
Summary Recent fossil discoveries and advances in plant phylogeny have renewed debate about the most recent common ancestor (MRCA) of land plants and the evolution of its fundamental organs and tissues. We re‐investigate the vascular system of Horneophyton lignieri, an exceptionally preserved Rhynie Chert fossil central to understanding early plant ...
Paul Kenrick, Emma J. Long
wiley   +1 more source

Spleen as an Alternative Tissue for Estimating Tetracapsuloides bryosalmonae Load, Prevalence and Its Relationship With Proliferative Kidney Disease in Brown Trout

open access: yesJournal of Fish Diseases, Volume 49, Issue 1, January 2026.
ABSTRACT Accurate pathogen detection is essential in fish health management and disease prevention. Pathogens often target different host tissues, and monitoring alternative target organs can provide important insights into disease progression. We evaluated the spleen as an alternative to the kidney for estimating the load and prevalence of the ...
Magnus Lauringson   +6 more
wiley   +1 more source

Transduction of Sporogenesis in Bacillus subtilis [PDF]

open access: yesJournal of Bacteriology, 1965
Takahashi , I. (McMaster University, Hamilton, Ontario, Canada). Transduction of sporogenesis in Bacillus subtilis . J. Bacteriol. 89: 294–298. 1965.—A number of asporogenous mutants of Bacillus subtilis were isolated and genetic analyses with these mutants
openaire   +2 more sources

Comparative insights into molecular pathways influencing germline development in early‐divergent angiosperms

open access: yesThe Plant Journal, Volume 125, Issue 2, January 2026.
SUMMARY The molecular and genetic mechanisms regulating female germline development remain largely unknown in basal and early‐divergent angiosperms. This contrasts with recent progress in model eudicots such as Arabidopsis thaliana and monocots, such as rice, barley, and maize. In this study, we investigate the genetic pathway governing female germline
Jorge Lora   +4 more
wiley   +1 more source

A Review of the Control of Coccidiosis in Poultry Using Natural Additives, Focusing on Gut Health and Immunity

open access: yesAdvances in Agriculture, Volume 2026, Issue 1, 2026.
Coccidiosis is one of the most common diseases in the poultry industry worldwide (especially in broilers aged 3–6 weeks), causing significant economic losses to poultry farmers and governments every year. Conventional methods (anticoccidial chemical compounds) for the coccidiosis debarment and control always present challenges and disadvantages, such ...
Fatemeh Aziz-Aliabadi   +3 more
wiley   +1 more source

Ultrastructure, Morphology, and Sporogenesis of Pasteuria penetrans [PDF]

open access: yesPhytopathology®, 1997
Pasteuria penetrans is a bacterial parasite of root-knot nematodes that shows great potential as a biocontrol agent. Scanning and transmission electron microscopy were used to study the ultrastructure, morphology, and sporogenesis of four isolates of P. penetrans. The effects of different Meloidogyne spp.
Z X, Chen   +3 more
openaire   +2 more sources

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