Results 121 to 130 of about 130,253 (242)

Pistil strategies controlling pollen tube growth

open access: yesSexual Plant Reproduction, 1996
The progamic phase appears especially well suited for pollen-pistil interaction. During this phase the pistil supports pollen germination and tube growth, and provides an adequate environment, nutrition and directional cues. However, this support does not occur indiscriminantly and some mechanisms operating in the pistil constrain pollen tube growth ...
Herrero Romero, María   +1 more
openaire   +2 more sources

LINC-complex mediated positioning of the vegetative nucleus is involved in calcium and ROS signaling in Arabidopsis pollen tubes

open access: yesNucleus, 2020
Nuclear movement and positioning play a role in developmental processes throughout life. Nuclear movement and positioning are mediated primarily by linker of nucleoskeleton and cytoskeleton (LINC) complexes.
Morgan Moser   +3 more
doaj   +1 more source

Badania biologii pyłku wytwarzanego przez kwiaty wiśni zakwitajace w różnych fazach kwitnienia [Studies of the biology of pollen formed by sour cherry flowers flowering in different stages of the blooming period]

open access: yesActa Agrobotanica, 2015
During four years (1971-1974), five sour cherry cultivars were examined for the pollen viability, germination and pollen tube growth. Pollen which was taken from the earliest and the last blooming stages had the smaller viability, germination and the ...
Stanisław Wociór
doaj   +1 more source

Filling the Gaps to Solve the Extensin Puzzle [PDF]

open access: yes, 2018
Extensins (EXTs) are highly repetitive plant O-glycoproteins that require several post-translational modifications (PTMs) to become functional in plant cell walls.
Borassi, Cecilia   +6 more
core   +1 more source

EFFECT OF DIFFERENT FACTORS ON GERMINATION AND TUBE GROWTH OF Solanum sisymbrifolium LAM. POLLEN

open access: yesAnnals of Tropical Research, 1988
Both germination and tube growth of Solanum sisymbrifolium Lam. pollen require an optimum temperature of 25°C and a growth medium containing 100 ppm boric acid, 10% sucrose and 0.6% Bacto-agar. Pollen germination was stimulated by 5 and 10 ppm GA3, 1-10
K.M. Kuruvilla   +3 more
doaj  

The heat stress effect on pollen development and germination [PDF]

open access: yes, 2009
Povišena temperatura ima značajan učinak na sve biljne organe i sve razvojne faze u životu biljke. Osobito je važan učinak na razvoj peluda i ženskih reproduktivnih organa, klijanje peludne mješinice i uspješnost stvaranja ploda.
Šlipogor, Vedrana
core   +2 more sources

The effect of intracellular calcium level regulators on the synthesis of pollen tube callose in Oenothera biennis L.

open access: yesActa Societatis Botanicorum Poloniae, 2014
It is shown that callose synthesis in the Oenothera biennis pollen tube is regulated by the endogenous Ca2+ level. Calcium antagonists reduced the amount of callose in the wall above the tip of the pollen tube (Verapamil - calcium channels blocker) and ...
Elżbieta Bednarska
doaj   +1 more source

Incidence and post-pollination mechanisms of nonrandom mating in Arabidopsis thaliana [PDF]

open access: yes, 2009
Compatible pollinations from many differenttaxa display nonrandom mating. Here we describe a systemfor examining questions of nonrandom mating in Arabidopsisthaliana.
Carlson, Ann L   +2 more
core   +3 more sources

A Calcium Sensor-Regulated Protein Kinase, CALCINEURIN B-LIKE PROTEIN-INTERACTING PROTEIN KINASE19, Is Required for Pollen Tube Growth and Polarity1[OPEN]

open access: yesPlant Physiology, 2015
A specific protein kinase plays an important role in pollen tube growth and likely participates in Ca2+ homeostasis through the modulation of Ca2+ influx. Calcium plays an essential role in pollen tube tip growth.
Liming Zhou   +4 more
semanticscholar   +1 more source

A Plant-Derived Antifungal Agent, Poacic Acid, Inhibits Germination and Tube Growth of Lily Pollen

open access: yesPlants
Poacic acid is a novel natural antifungal agent. It inhibits the growth of fungal cells, including budding yeast Saccharomyces cerevisiae, by inhibiting the synthesis of β-1,3-glucan, which is a major component of the fungal cell wall.
Nanami Kobayashi   +3 more
doaj   +1 more source

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