Results 51 to 60 of about 1,117,122 (295)
Morphological analysis of pollen grains in Machaerium species from São Paulo, Brazil [PDF]
Acta Botânica BrasílicaPollen morphology serves as a valuable tool for taxonomic characterization and evolutionary studies. In this study, we conducted a detailed morphological analysis of pollen grains from 16 species of Machaerium Pers.
Vitória Húngaro Bocutti Gusman +5 more
doaj +1 more source
Chloride fluxes in lily pollen tubes: a critical reevaluation
, 2004 Microelectrodes, made from a Cl?-selective liquid ion exchanger previously used to measure putative Cl- fluxes in Lilium longiflorum pollen tubes, were characterized. The electrodes were poorly selective, possessing only about 10-fold selectivity for Cl?
Mark A. Messerli +7 more
core +1 more source
Studies in pollen morphology [PDF]
New Zealand Journal of Botany, 1966 Summary Pollen of Gingidium montanum J. R. and G. Forst. has been compared with the pollen of Aciphylla squarrosa J. R. and G. Forst., Angelica sylvestris L., Anisotome ...
openaire +1 more source
Autonomous Navigation of Pollen‐Inspired Magnetic Microrobots for Biomedical Applications
Advanced Robotics Research, EarlyView.A sunflower pollen‐inspired magnetic microrobot enables controlled rolling navigation in vessel‐like environments. Its open geometry reduces hydrodynamic drag, while vision‐based closed‐loop control, shortest‐path planning, and reinforcement learning support target‐reaching and maze navigation with microrobot‐scale accuracy, highlighting a route toward
Ali Anil Demircali +6 more
wiley +1 more source
Big bees do a better job : intraspecific size variation influences pollination effectiveness [PDF]
, 2015 Funding: School of Biology, University of St AndrewsBumblebees (Bombus spp.) are efficient pollinators of many flowering plants, yet the pollen deposition performance of individual bees has not been investigated.
Finlayson, Kathryn +1 more
core +3 more sources
Cell‐Based Biohybrid Micro/Nanorobots for Biotherapy
Advanced Robotics Research, EarlyView.This review systematically evaluates cell‐based biohybrid micro/nanorobots (CB‐BMRs), highlighting their cell selection criteria, fabrication strategies, and diverse actuation modes. Furthermore, it surveys the promising therapeutic applications of CB‐BMRs in targeted cancer, thrombosis, and inflammation treatments, while comprehensively discussing ...
Lin Wang +11 more
wiley +1 more source
Structure and Function of a Multi‐Megadalton Virus‐Like Proteolytic Dodecahedron
Angewandte Chemie, EarlyView.Zuzalysin, a virulence metallopeptidase of the periodontal pathogen Porphyromonas gingivalis, is secreted as a latent, flexible ≈95‐kDa monomer. Calcium triggers cysteine‐switch activation and hierarchical assembly into pentamers, bipentamers, tripentamers, and a ≈5.6‐MDa, ≈355‐Å dodecahedron. Structures at 1.8–3.6 Å reveal a virus‐sized catalytic cage
Mariusz Madej +20 more
wiley +2 more sources
Plants, 2022 Pollen morphology of 12 salt-tolerant grasses (Calamagrostis pseudophragmites, Cenchrus biflorus, Cenchrus ciliaris, Cenchrus pennisetiformis, Cymbopogon jwarancusa, Dactyloctenium aegyptium, Echinochloa colona, Echinochloa crus-galli, Saccharum ...
Moona Nazish, Ashwaq T. Althobaiti
doaj +1 more source
MicroPoem: experimental investigation of birch pollen emissions [PDF]
, 2010 Diseases due to aeroallergens constantly increased over the last decades and affect more and more people. Adequate protective and pre-emptive measures require both reliable assessment of production and release of various pollen species, and the ...
Michel, Dominik +2 more
core
Effects of Alternaria alternata f.sp. lycopersici toxins on pollen [PDF]
, 1988 Effects of the phytotoxic compounds (AAL-toxins) isolated from cell-free culture filtrates of Alternaria alternata f.sp. lycopersici on in vitro pollen development were studied. AAL-toxins inhibited both germination and tube growth of pollen from several
Franken, J. +9 more
core +2 more sources