Results 101 to 110 of about 4,169 (206)

Studies on reticuloendothelial system and hematopoiesis. II. A study on the morphology and function of erythroblastic islet [PDF]

open access: yes, 1965
1. For the purpose to clarify the role of reticuloendothelial cells in the center of erythroblastic islet, the medullary and extramedullary erythropoietic foci in convalescence of phenylhydrazine arternia were observed by light and electron microscopies,
Matsuoka, Kenichi
core   +1 more source

An ultrastructural and histopathological study of Henneguya pellucida n. sp. (Myxosporea: Myxobolidae) infecting Piaractus mesopotamicus (Characidae) cultivated in Brazil

open access: yesParasite, 2005
During a study of myxosporean parasites of cultivated freshwater fish, a new myxosporean species, Henneguya pellucida n. sp., was discovered. Of the 120 Piaractus mesopotamicus sampled, only 10 specimens (8.3%) were infected.
Adriano E.A., Arana S., Cordeiro N.S.
doaj   +1 more source

Fry of the milk-fish Chanos chanos (Forskal) [PDF]

open access: yes, 1951
It is well known that the fry of the milkfish Chanos chanos; (Forskal), appear in large numbers In the tidal flats of the Pamban area, especially near the Chinnapalam creek.
Panikkar, N K   +2 more
core  

Edouard Chatton (1883–1947) and the dinoflagellate protists: concepts and models [PDF]

open access: yes, 2010
Edouard Chatton contributed to our knowledge of single-celled protoctists, especially ciliates and dinoflagellates, free-living and/or symbiotic, in relation to the marine invertebrate animals in which they reside.
Marie-Odile Soyer-Gobillard
core   +2 more sources

The transcription factors and pathways underpinning male reproductive development in Arabidopsis

open access: yesFrontiers in Plant Science
As Arabidopsis flowers mature, specialized cells within the anthers undergo meiosis, leading to the production of haploid microspores that differentiate into mature pollen grains, each containing two sperm cells for double fertilization.
Anna Johanna Wiese   +4 more
doaj   +1 more source

Survival of Moss Reproductive Structures under Simulated Martian Environmental Conditions and Extreme Thermal Stress: Vibrational Spectroscopic Study and Astrobiological Implications [PDF]

open access: yes, 2016
The principal goal of astrobiology is the search for extraterrestrial life forms. A key aspect is the study of the ability of different kinds of terrestrial organisms to support simulated extraterrestrial environmental conditions.
Estébanez, Belén   +5 more
core   +1 more source

Fermentasi Onggok Menggunakan Mutan Trichoderma untuk Produksi Selulase [PDF]

open access: yes, 2009
Penelitian ini bertujuan mempelajari pengaruh a awal medium, konsentrasi inokulum, pH awal, dan waktu fermentasi onggok menggunakan mutan Trichoderma AA1 terhadap produksi selulase. Fermentasi onggok menggunakan metode fermentasi substrat padat.
Bachruddin, Z. (Zaenal)   +3 more
core  

Life cycles of European Pteridophytes [PDF]

open access: yes
Although the need for water for fertilization restricts the distribution of pteridophytes, some are able to persist in remarkably dry situations.
Bell, P.R.
core  

Exploring Hormone Crosstalk in Fusarium verticillioidies Infection of Maize [PDF]

open access: yes, 2013
Fusarium verticillioides is a major pathogen of a broad range of field crops. Seeds infections lead to contamination by hazardous mycotoxins, such as fumonisin.
Drab, Dillon
core   +1 more source

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