Results 51 to 60 of about 86,726 (311)

Malectin Alleviates Endoplasmic Reticulum Stress in Gestational Diabetes Mellitus via Glycoprotein Quality Control Mechanisms

open access: yesAdvanced Science, EarlyView.
Malectin alleviates high glucose‐induced ER stress and damage in placental trophoblasts, a function dependent on its six critical carbohydrate‐binding residues. In a GDM mouse model, administration of TAT‐Malectin ameliorated hyperglycemia and placental ER stress and prevented fetal macrosomia.
Jiahui Zhu   +12 more
wiley   +1 more source

PtABI3 represses the age biomarker gene PtDAL1 during male cone development in conifer

open access: yesForestry Research
The age biomarker gene PtDAL1 in conifers undergoes expression resetting during pollen maturation, but its regulatory mechanisms remain unclear. This study identifies PtABI3, a B3 transcription factor (TF) in Pinus tabuliformis, as a key repressor of ...
Yi-Tong Song   +14 more
doaj   +1 more source

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

open access: yesAdvanced Science, EarlyView.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao   +8 more
wiley   +1 more source

The Development of the Pollen of Sarracenia [PDF]

open access: yesBotanical Gazette, 1908
(WITH PLATE V) During March I907, through the courtesy of Dr. J. M. MACFARLANE, I had the opportunity of gathering material for this study from the fine collection of sarracenias in the greenhouses of the University of Pennsylvania. The species examined were S. fiava, S. purpurea, S. variolaris, S. rubra, and S. psittacina, besides the hybrids S. /lava
openaire   +1 more source

A Cytological Study of Pollen Development in Lactuca

open access: yesAnnals of Botany, 1921
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Gates, R. Ruggles (Reginald Ruggles)   +1 more
openaire   +2 more sources

A Pollen‐Enhanced Bionic Mechanoreceptor Induced by Asymmetric Ionic Convection in Hydrogel for Sensory‐Augmented Prostheses

open access: yesAdvanced Science, EarlyView.
This work proposed a pollen‐enhanced bionic mechanoreceptor based on ionic convection. Leveraging the ion anchoring effect of the pollen particle, the output performance could be ∼12 times higher than the original state. By employing deep learning models as AI brains, the feasibility of a sensory‐augmented prosthesis consisting of a pollen‐enhanced ...
Zi Hao Guo   +7 more
wiley   +1 more source

Development of the Vegetative Cell in the Pollen Grain

open access: yesCYTOLOGIA, 1970
14 p.-7 fig. In Angiosperms, after meiosis and the formation of microspores, these develop a series of processes leading to maturation. It may be said that one of the first important steps towards maturation is taken when the haploid nucleus undergoes post-meiotic mitosis to give rise to two cells, the vegetative and the generative, which are formed ...
Martín, G. Giménez   +2 more
openaire   +3 more sources

Human impact on an island ecosystem: pollen data from Sandoy, Faroe islands

open access: yes, 2008
<b>Aim</b>: To investigate the form and dynamics of ecosystems on an isolated island in the North Atlantic before human settlement in the first millennium ad, and the effects of human activities thereafter. <b>Location</b>: The
Church, Mike J.   +20 more
core   +1 more source

Aerobic fermentation during tobacco pollen development [PDF]

open access: yes, 1997
In vegetative organs of plants, the metabolic switch from respiration to fermentation is dictated by oxygen availability. The two genes dedicated to ethanolic fermentation, pyruvate decarboxylase and alcohol dehydrogenase, are induced by oxygen ...
Tadege, Milion, Kuhlemeier, Cris
core   +1 more source

Comparative Oligo‐FISH Mapping Illuminates Chromosomal Evolution Among Rutaceae Species Diverged Over 50 Million Years

open access: yesAdvanced Science, EarlyView.
Oligonucleotide‐based fluorescence in situ hybridization probes were developed in the model citrus species Citrus maxima. These probes were applied to comparative karyotyping across 14 species in the Rutaceae family. This analysis revealed chromosomal evolution in lineages that diverged from Citrus nearly 52 million years ago.
Li He   +9 more
wiley   +1 more source

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