Results 11 to 20 of about 68,887 (307)
Segmenting 20 Types of Pollen Grains for the Cretan Pollen Dataset v1 (CPD-1)
Applied Sciences, 2021 Pollen analysis and the classification of several pollen species is an important task in melissopalynology. The development of machine learning or deep learning based classification models depends on available datasets of pollen grains from various plant
Nikos Tsiknakis +6 more
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Preliminary studies on mustard taxonomy based on pollen morphology
浙江大学学报. 农业与生命科学版, 2006 Pollen grains of 17 mustard subspecies were examined under scanning electron microscope. The result showed that the pollen shapes were nearly spherical, or spheroidal, or super-spheroidal from the equatorial view, depending on cultivars of mustard.
MENG Qiu-feng +3 more
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Disturbances in microsporogenesis and pollen grain development in Gagea lutea (L.) Ker. Gaw.
Acta Agrobotanica, 2012 The meiotic division of microsporocytes and pollen grain development in Gagea lutea (L.) Ker.-Gaw. (Liliaceae) with fluorescence microscope (excitation light 400 nm) was observed after squashing the anthers in DAPI solution (fluorochrom dying DNA). Up to
Ewa Szczuka +4 more
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Boron deficiency responses in maize (Zea mays L.) roots
Journal of Plant Nutrition and Soil Science, EarlyView., 2023 Abstract Background Boron (B) is an essential micronutrient for plants. Dicot plants respond to insufficient B supply by altering root architecture and root hair growth. How root systems of rather low‐B demanding monocot species such as maize (Zea mays L.) respond to B deficiency in terra has not been experimentally resolved, yet.
Manuela Désirée Bienert +5 more
wiley +1 more source
Acta Societatis Botanicorum Poloniae, 2015 The ultrastructure of pollen grain surface in allotetraploid petunias was analyzed by scanning electron microscopy. The pollen grain wall is developed into characteristic pattern of convulations.
S. Muszyński +3 more
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Repeated aeolian deflation during the Allerød/GI-1a-c in the coversand lowland of NW Belgium [PDF]
, 2020 The results of multi-disciplinary research carried out on the deposits of the Moerbeke "Driehoek" site, located along the northern bank of the extensive Moervaart palaeolake (NW Belgium), are presented.
Bos, Johanna A.A. +3 more
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Messenger RNas : their utilization and degradation during pollen germination and tube growth
Acta Societatis Botanicorum Poloniae, 2014 During pollen germination and tube growth at least 230 new proteins are synthesized, as determined by 35S-methionime labeling and two dimensional gel electrophoretic analysis of the labeled proteins.
Joseph P. Mascarenhas, Joann Mermelstein
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Pollen grains for oral vaccination [PDF]
Journal of Controlled Release, 2014 Oral vaccination can offer a painless and convenient method of vaccination. Furthermore, in addition to systemic immunity it has potential to stimulate mucosal immunity through antigen-processing by the gut-associated lymphoid tissues. In this study we propose the concept that pollen grains can be engineered for use as a simple modular system for oral ...
Shashwati U, Atwe +2 more
openaire +2 more sources
Electronic Journal of Biotechnology, 2018 Background: Pollen development is an important reproductive process that directly affects pollen fertility and grain yield in rice. Argonaute (AGO) proteins, the core effectors of RNA-mediated silencing, play important roles in regulating plant growth ...
Min Yao +5 more
doaj +1 more source
A combinatorial approach to angiosperm pollen morphology [PDF]
, 2016 Angiosperms (flowering plants) are strikingly diverse. This is clearly expressed in the morphology of their pollen grains, which are characterized by enormous variety in their shape and patterning.
Blackmore S +7 more
core +1 more source