Results 101 to 110 of about 130,253 (242)

Evaluation of the reproductive process as the cause for low fruit set in two japanese plum cultivars [PDF]

open access: yes, 2012
The reproductive process has been evaluated to ascertain the causes of low fruit set in two Japanese plum cultivars, ‘Sweet August’ and ‘Rubirosa’. In order to evaluate pollen germination, pollen-pistil incompatibility and ovule viability, different ...
Guerra Velo, Mª Engracia   +3 more
core   +1 more source

Persistent directional growth capability in Arabidopsis thaliana pollen tubes after nuclear elimination from the apex

open access: yesNature Communications, 2021
Arabidopsis pollen contains a vegetative nucleus and two sperm cells that move to the apical region during pollen tube growth. Here, Motomura et al. make use of transgenic pollen with immobilized nuclei and show that, contrary to previous assumptions ...
Kazuki Motomura   +7 more
doaj   +1 more source

Viability and Vigor of Dura, Pisifera and Tenera Oil Palm (Elaeis Guineensis Jacq.) Pollen [PDF]

open access: yes, 2010
Selecting pollen with high viability and vigor are important for ensuring the success of oil palm seed production through controlled pollination. Therefore, an estimation of pollen viability and vigor is essential for fruit and seed setting.
Khin Aye Myint, NA
core  

MADS-complexes regulate transcriptome dynamics during pollen maturation [PDF]

open access: yes, 2007
Background: Differentiation processes are responsible for the diversity and functional specialization of the cell types that compose an organism. The outcome of these processes can be studied at molecular, physiologic, and biochemical levels by comparing
Verelst, Wim   +5 more
core   +2 more sources

Heteranthery in Clarkia: pollen performance of dimorphic anthers contradicts expectations. [PDF]

open access: yes, 2019
Premise of the studyWild plant species that require the services of pollen-feeding insects for reliable pollination may evolve features that attract and reward their mutualistic partners.
Buchmann S. L.   +4 more
core   +1 more source

The effect of sheltered load on reproduction in Solanum carolinense, a species with variable self-incompatibility [PDF]

open access: yes, 2009
In previous studies, we have investigated the strength of self-incompatibility (SI) in Solanum carolinense, a highly successful weed with a fully functional SI system that inhabits early successional and other disturbed habitats.
Keser, L.H.   +2 more
core   +2 more sources

Imaging plant germline differentiation within Arabidopsis flowers by light sheet microscopy [PDF]

open access: yes, 2020
In higher plants, germline differentiation occurs during a relatively short period within developing flowers. Understanding of the mechanisms that govern germline differentiation lags behind other plant developmental processes.
Bainar, Petr   +8 more
core   +1 more source

2, 6-Dichlorobenzonitrile causes multiple effects on pollen tube growth beyond altering cellulose synthesis in Pinus bungeana Zucc. [PDF]

open access: yesPLoS ONE, 2013
Cellulose is an important component of cell wall, yet its location and function in pollen tubes remain speculative. In this paper, we studied the role of cellulose synthesis in pollen tube elongation in Pinus bungeana Zucc.
Huaiqing Hao   +4 more
doaj   +1 more source

Coordinated functional divergence of genes after genome duplication in Arabidopsis thaliana [PDF]

open access: yes, 2017
Gene and genome duplications have been rampant during the evolution of flowering plants. Unlike small-scale gene duplications, whole-genome duplications (WGDs) copy entire pathways or networks, and as such create the unique situation in which such ...
De Smet, Riet   +4 more
core   +1 more source

Reproductive success through high pollinator visitation rates despite self incompatibility in an endangered wallflower [PDF]

open access: yes, 2016
PREMISE OF THE STUDY: Self incompatibility (SI) in rare plants presents a unique challenge—SI protects plants from inbreeding depression, but requires a sufficient number of mates and xenogamous pollination. Does SI persist in an endangered polyploid? Is
Herman, Julie A.   +6 more
core   +2 more sources

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