Results 61 to 70 of about 1,486 (189)

Ontogenetically-regulated male sterility in tissue culture - induced and spontaneous sorghum mutants [PDF]

open access: yes, 2003
Variability of male fertility expression in the AS-1 line, a somaclonal variant obtained from tissue culture of CMS-plant, and in the progeny of revenant '124-1' obtained from fertile tiller, which developed on CMS-plant transferred from the field to the
Belyaeva E.V., Elkonin L.A.
core   +1 more source

Imaging of Molecular and Developmental Responses to Abiotic Stresses in Reproductive Tissues

open access: yesPhysiologia Plantarum, Volume 178, Issue 1, January/February 2026.
ABSTRACT Abiotic stresses, such as drought, salinity, and extreme temperatures, have profound effects on plant reproduction, often leading to reduced fertility and yield. Reproduction in plants involves complex interactions between diverse cells, necessitating spatiotemporal resolution to understand how stress impacts each component of this intricate ...
Hana Daryanavard   +7 more
wiley   +1 more source

Lead clinical and pre-clinical antimalarial drugs can significantly reduce sporozoite transmission to vertebrate populations [PDF]

open access: yes, 2014
To achieve malarial elimination we must employ interventions that reduce the exposure of human populations to infectious mosquitoes. To this end, numerous anti-malarial drugs are under assessment in a variety of transmission-blocking assays which fail to
Blagborough, A.M.   +9 more
core   +4 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

Perspectives on deciphering mechanisms underlying plant heat stress response and thermotolerance [PDF]

open access: yes, 2013
Global warming is a major threat for agriculture and food safety and in many cases the negative effects are already apparent. The current challenge of basic and applied plant science is to decipher the molecular mechanisms of heat stress response (HSR ...
Bokszczanin, Kamila L.   +1 more
core  

Pollen: ovule ratio and its relationship with other reproductive traits in some Passiflora species (Passifloraceae) [PDF]

open access: yes, 2014
The pollen/ovule (P/O) ratio has been used as predictor of the reproductive system of angiosperms (lowest P/O values correspond to obligate autogamous species while the highest correlate with obligate xenogamous species) but it does not keep for all the ...
Amela Garcia, Maria Teresa   +2 more
core   +1 more source

3D Electron Microscopy Reveals the Structural Complexity of the Intravacuolar Membranous Network in Cyrilia lignieresi‐Infected Erythrocytes of the Fish Synbranchus marmoratus

open access: yesJournal of Eukaryotic Microbiology, Volume 72, Issue 4, July/August 2025.
ABSTRACT This study employs advanced three‐dimensional electron microscopy techniques, including Transmission Electron Microscopy (TEM) tomography and freeze‐fracture imaging via scanning electron microscopy (SEM), to investigate the ultrastructural organization of Cyrilia lignieresi‐infected red blood cells (iRBCs) in the host fish Synbranchus ...
Brenda Santarém Fachetti   +8 more
wiley   +1 more source

Цитомиксис, его природа, значение и цитологические последствия [PDF]

open access: yes, 2012
Цитомиксис является широко распространенным естественным процессом межклеточного взаимодействия, который свойствен вегетативным и генеративным тканям как в норме, так и при патологии.
Кравец, Е.А.
core   +1 more source

Patterns and Drivers of Pollen Temperature Tolerance

open access: yesPlant, Cell &Environment, Volume 48, Issue 2, Page 1366-1379, February 2025.
ABSTRACT Pollen, a pivotal stage in the plant reproductive cycle, is highly sensitive to temperature fluctuations, impacting seed quality and quantity. While the importance of understanding pollen temperature limits (Tmin, Topt, Tmax – collectively PTLs) is recognized, a comprehensive synthesis of underlying drivers is lacking.
Donam Tushabe, Sergey Rosbakh
wiley   +1 more source

Male gametogenesis in flowering plants

open access: yesFrontiers in Sustainable Food Systems
The life cycles of plants are characterized by significant alternations between the diploid sporophytic and the haploid gametophytic generations. Meiosis and fertilization are the prerequisites for achieving the alternation of generations.
Dan-Lu Cui   +5 more
doaj   +1 more source

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