Results 91 to 100 of about 79,061 (307)
Overexpression of the Tomato Pollen Receptor Kinase LePRK1 Rewires Pollen Tube Growth to a Blebbing Mode [PDF]
, 2014 The tubular growth of a pollen tube cell is crucial for the sexual reproduction of flowering plants. LePRK1 is a pollen-specific and plasma membrane–localized receptor-like kinase from tomato (Solanum lycopersicum). LePRK1 interacts with another receptor,
Barberini, María Laura +10 more
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Microscopy Research and Technique, EarlyView.This study provides the palynological analysis of 12 Crucianella L. taxa using LM and SEM. Variations in pollen size, aperture number, and exine ornamentation were identified as key traits, demonstrating their taxonomic value for distinguishing closely related species and subspecies within the genus. ABSTRACT Crucianella L.
Sevcan Celenk +3 more
wiley +1 more source
Botanical StudiesThe pollen dispersal unit of the epidendroid species, Cephalanthera longifolia, is a soft pollinium consisting of loosely connected tetrads that are agglutinated by elastoviscin.
Carola Purgina +2 more
doaj +1 more source
Environmental Research Letters, 2013 Pollen taxon in sediment samples can be identified by analyzing pollen morphology. Identification of related species based on pollen morphology is difficult and is limited primarily to genus or family.
Fumio Nakazawa +8 more
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Preliminary study of the atmospheric pollen in "Sierra de las Nieves" Natural Park (Southern Spain) [PDF]
, 2018 ‘Sierra de las Nieves’ is a Natural Park and a Biosphere Reserve located in the south of Spain. This protected area has a high diversity of ecosystems with abundant endangered species which have led it to be in ways to become a National Park.
Cabezudo, Baltasar +3 more
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Spatially Aware Dictionary Learning and Coding for Fossil Pollen Identification
, 2016 We propose a robust approach for performing automatic species-level recognition of fossil pollen grains in microscopy images that exploits both global shape and local texture characteristics in a patch-based matching methodology.
Fowlkes, Charless +2 more
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Pollen morphology of Curroria, Mondia, Socotranthus and Stomatostemma (Periplocaceae)
Bothalia: African Biodiversity & Conservation, 1993 The pollen morphology of I Planch., O Skeels, Socotranthus Kuntze and Stomatostemma N.E. Br. was studied.All the genera are characterized by pollen grains arranged in tetrads. The arrangement of the grains may be rhomboidal, tetrahedral or decussate. The
R. L. Verhoeven, H. J. T. Venter
doaj +1 more source
Exploratory Pollen Analysis of Hargrove Lake, Davy Crockett National Forest Houston County, Texas [PDF]
, 2002 The objectives of this exploratory pollen analysis of selected samples from a sediment core taken at Hargrove Lake, Davy Crockett National Forest, Houston County, Texas, are to ascertain the quality of pollen preservation in the lake bottom matrix and to
Kelso, Gerald K.
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Berberis microphylla: A species with phenotypic plasticity in different climatic conditions [PDF]
, 2018 Berberis microphylla G. Forst., commonly called as "calafate" produces small fruits with high content of carbohydrates, phenols and antioxidants. The objective of this work was to characterize the vegetative and reproductive cycle of Berberis microphylla
Alonso, Marta +2 more
core +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT This paper examines regional and chronological variations in Acheulean handaxe morphology during Marine Isotope Stage 11 (c. 425–365 ka BP) in Britain. Using a data set of 737 handaxes from 13 securely dated sites in East Anglia and the Thames Valley, we apply three‐dimensional geometric morphometric analysis to examine morphological ...
Mark White +5 more
wiley +1 more source