Results 31 to 40 of about 1,993 (204)

Sporogenesis in bryophytes

open access: yes, 1990
Roy C. Brown, Betty E. Lemmon
openaire   +2 more sources

Evolution and expression of LEAFY genes in ferns and lycophytes

open access: yesEvoDevo, 2022
Background The LEAFY (LFY) transcription factors are present in algae and across land plants. The available expression and functional data of these genes in embryophytes suggest that LFY genes control a plethora of processes including the first zygotic ...
Carolina Rodríguez-Pelayo   +4 more
doaj   +1 more source

Aggregations of organelles in meiotic cells of higher plants

open access: yesActa Societatis Botanicorum Poloniae, 2014
During early prophase I in microsporocytes and sporocytes of various plants all mitochondria and plastids aggregate in a group, where some plastids seem to undergo division. This group desintegrates by middle prophase I.
Bohdan Rodkiewicz, Ewa Duda
doaj   +1 more source

ON THE NATURE OF SPOROGENESIS IN SOME AEROBIC BACTERIA [PDF]

open access: yesJournal of General Physiology, 1952
Washed vegetative cells of various species of aerobic spore-forming bacteria sporulate abundantly when shaken in distilled water in air. The spores thus formed possess the same heat resistance as spores formed in a complete growth medium. Various factors influencing sporogenesis in water are described. Glucose in low concentration completely suppresses
W A, HARDWICK, J W, FOSTER
openaire   +2 more sources

Exploring the Influence of Temperature on Aspects of the Reproductive Phenology of Temperate Seaweeds

open access: yesFrontiers in Marine Science, 2018
As plants on land, seaweeds are likely to be susceptible to temperature-mediated changes in phenology such as shifts in their reproductive timing.
Thibaut de Bettignies   +5 more
doaj   +1 more source

Hemolivia mauritanica (Haemogregarinidae: Apicomplexa) infection in the tortoise Testudo graeca in the Near East with data on sporogonous development in the tick vector Hyalomna aegyptium

open access: yesParasite, 2006
Testudo graeca tortoises were collected in the northern and southern Golan Heights (Israeli occupied territory of south Syria), and various locations in Israel and Palestine.
Paperna I.
doaj   +1 more source

A novel regulator couples sporogenesis and trehalose biogenesis in Aspergillus nidulans. [PDF]

open access: yesPLoS ONE, 2007
Trehalose is a compatible osmolyte produced by bacteria, fungi, insects and plants to protect the integrity of cells against various environmental stresses.
Min Ni, Jae-Hyuk Yu
doaj   +1 more source

Transcriptomic Analysis Reveals the Regulation Mechanism of Sporogenesis in Ulva prolifera

open access: yesFrontiers in Marine Science, 2022
Ulva prolifera, the main causative species of green tide, has drawn much attention. Spore reproduction was one of the main reproduction strategies that could be induced by changing environmental factors, but the mechanism of spore formation remains ...
Jianan Jiang   +4 more
doaj   +1 more source

Origin of the Diplazium hachijoense complex (Athyriaceae) [PDF]

open access: yesPhytoKeys, 2019
We analyzed the phylogeny of the Diplazium hachijoense complex using plastid trnL-F and low-copy nuclear marker AK1 DNA sequences. Based on allele constitution, triploid apogamous species of the D. hachijoense complex appeared to have originated from the
Kiyotaka Hori, Noriaki Murakami
doaj   +3 more sources

Estudos sobre a esporulação de uma amostra de bacillus: III - Influência da concentração da glicose sobre o início da esporogênese

open access: yesMemorias do Instituto Oswaldo Cruz, 1973
Células do Bacillus licheniformis 2390 foram cultivadas em um meio semi-sintético, a fim de se observar uma possível influência de diferentes concentrações de glicose sobre o tempo necessário para o início da esporogênese.
Leon Rabinovitch, Sônia Maria da Silva
doaj   +1 more source

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