Results 251 to 260 of about 19,459 (297)

Seed dormancy shapes gene drive dynamics in plants. [PDF]

Nat Plants
Kim IK, Tian L, Chaffee R, Haller BC, Champer J, Messer PW, Kim J.   +6 more
europepmc   +1 more source

Melissopalynological and Physicochemical Analysis of Selected Honey Samples from Romania, Spain, Malaysia, and New Zealand. [PDF]

Foods
Ioniță-Mîndrican CB, Ancuceanu R, Dinu M, Oprea E, Negrei C.   +4 more
europepmc   +1 more source

Spirulina-Derived Carbon Dots Promote Context-Dependent Effects on Rice Metabolism, Yield, and Grain Quality Under Non-Stress and Heat Stress Conditions. [PDF]

Plants (Basel)
Minello LVP, Dos Santos SL, Longaray LB, Fagundes NDS, Deuner S, Nunes A, Oliveira ER, Maraschin M, Sperotto RA.   +8 more
europepmc   +1 more source

Wild relatives to improve heat tolerance of cultivated quinoa (Chenopodium quinoa): pollen viability and grain number. [PDF]

J Exp Bot
Xu J, Farooq HU, Hashim M, Rey E, Curti R, Morris A, Maughan PJ, Jellen EN, Jarvis DE, Bertero D, Melino V, Tester M.   +11 more
europepmc   +1 more source

Features extraction techniques for pollen grain classification [PDF]

Neurocomputing, 2015
An extensive study on pollen grain identification is presented in this work. A combination of geometrical and texture characteristics is proposed as pollen grain discriminative features as well as the usage of the most popular feature extraction ...
Marcos Del Pozo-Banos, Jesus B Alonso
exaly   +2 more sources

Pollen grain size in four ploidy levels of genusAvena [PDF]

Euphytica, 1995
Pollen grain size in many genera positively correlated with chromosome number. In this study, oat (Avena) pollen grain size was examined in diploids (2×=14, one species, for accessions), tetraploids (4×=28, five species, 20 accessions), hexaploids (6×=42,
A Katsiotis, R A Forsberg, Katsiotis A
exaly   +2 more sources

Trends of pollen grain size variation in C3 and C4 Poaceae species using pollen morphology for future assessment of grassland ecosystem dynamics [PDF]

Grana, 2015
This pilot study aims to find whether C3 and C4 Poaceae species can be separated by their pollen grain size. One hundred and sixty Poaceae species were prepared for pollen grain size analyses using standard methods.
Farooq Jan, Hermann Behling
exaly   +2 more sources

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Adjuvant activity of pollen grains

Allergy, 2005
Background:  The induction of an immune response to a biologically inert soluble protein requires an adjuvant. Here we have examined whether intact grains of pollen display such adjuvant effect, accounting for the immunogenic activity of pollen protein allergens that are devoid of intrinsic pro‐inflammatory/adjuvant property.Methods:  Human monocyte ...
Z, Allakhverdi, S, Bouguermouh, M, Rubio, G, Delespesse   +3 more
openaire   +2 more sources

Fluorescence Microscopy in the Study of Pollen Grains and Pollen Tubes

Stain Technology, 1962
Fresh pollen gains were either crushed directly in a 0.01% solution of acridine orange (0.1 M phosphate-citrate buffer, pH 5.2-5.4) or they were germinated previously in 5-25% sucrose solution (glass-distilled water of pH 5.0-6.0 with 100 ppm H3BO3) inside moist incubating chambers at 24-30° C. Observations and records were made by using ultraviolet or
P N, BHADURI, P K, BHANJA
openaire   +2 more sources

The Cytoskeleton of Pollen Grains and Pollen Tubes

1992
The cytoskeleton is assumed to be involved in many internal functions of the eukaryotic cell, e.g. organelle movement, mitotic and meiotic division, cell morphogenesis and cell growth (Dustin, 1984; Bershadsky and Vasiliev, 1988). Examination of a broad variaty of mono- and dicotyledones has revealed the presence of microtubules and/or actin filaments ...
E. S. Pierson, Y. Q. Li
openaire   +1 more source