Results 81 to 90 of about 1,221,498 (351)
Nature Communications, 2021 Arabidopsis pollen contains a vegetative nucleus and two sperm cells that move to the apical region during pollen tube growth. Here, Motomura et al. make use of transgenic pollen with immobilized nuclei and show that, contrary to previous assumptions ...
Kazuki Motomura +7 more
doaj +1 more source
Toward in vitro fertilization in Brachiaria spp. [PDF]
, 2010 Brachiaria are forage grasses widely cultivated in tropical areas. In vitro pollination was applied to accessions of Brachiaria spp. by placing pollen of non-dehiscent anthers on a solid medium near isolated ovaries.
Alves, E.R. +5 more
core +2 more sources
Sperm cells are passive cargo of the pollen tube in plant fertilization
Nature Plants, 2017 Sperm cells of seed plants have lost their motility and are transported by the vegetative pollen tube cell for fertilization, but the extent to which they regulate their own transportation is a long-standing debate.
Jun Zhang +10 more
semanticscholar +1 more source
Advanced 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
Determination of cardinal temperatures for sugar apple ( Annona squamosa L.)
Ciência e Agrotecnologia, 2016 The sugar apple is highly dependent on the pollination and fruit tree pollen performance is crucial for successful fertilization and fruit set. The objective of this study was to determine the cardinal temperatures for in vitro pollen grains germination ...
Bruno Rafael Alves Rodrigues +5 more
doaj +1 more source
Effects of post-translational modifications catalysed by pollen transglutaminase on the functional properties of microtubules and actin filaments [PDF]
, 2009 TGases (transglutaminases) are a class of calcium-dependent enzymes that catalyse the interactions between acyl acceptor glutamyl residues and amine donors, potentially making crosslinks between proteins.
Bonner, PLR +4 more
core
The Plant Cell, 2018 Glucose is released by SWEET proteins into the apoplast of the pistil and taken up into pollen tubes by STP transporters to regulate pollen tube growth through HXK1 signaling.
Theresa Rottmann +3 more
semanticscholar +1 more source
Microbial Odorant Detection Guides Drosophila Parasitoids Seeking Hosts in Fermenting Fruits
Advanced Science, EarlyView.Yeast microbes in fermenting fruits attract both host flies and their parasitoid wasps. Female Leptopilina boulardi detect yeast‐emitted ethyl esters via two olfactory receptors, LbouOR167 and LbouOR136. A conserved residue, Leu159, is critical for binding these compounds, enabling female wasps to locate host‐rich habitats.
Yueqi Lu +11 more
wiley +1 more source
A Tobacco Homolog of DCN1 is Involved in Cellular Reprogramming and in Developmental Transitions [PDF]
, 2011 Plant proteomes show remarkable plasticity in reaction to environmental challenges and during developmental transitions. Some of this adaptability comes from ubiquitin-mediated protein destruction regulated by cullin-RING E3 ubiquitin ligases (CRLs ...
Alexandra Ribarits +12 more
core +1 more source
Heteranthery in Clarkia: pollen performance of dimorphic anthers contradicts expectations. [PDF]
, 2019 Premise of the studyWild plant species that require the services of pollen-feeding insects for reliable pollination may evolve features that attract and reward their mutualistic partners.
Buchmann S. L. +4 more
core +1 more source