Results 21 to 30 of about 1,363 (176)

The explosive flowers of Marsypianthes chamaedrys (Lamiaceae) resort to self-pollination and improve reproduction

open access: yesActa Botânica Brasílica, 2022
Explosive pollination includes a rapid release of floral sexual elements that are enclosed in modified petals, and a subsequent contact with pollinators’ body.
Thiago Amorim   +3 more
doaj   +1 more source

THE EVOLUTION OF AUTOGAMY IN SPECIES OF THE MUSTARD GENUSLEAVENWORTHIA [PDF]

open access: yesEvolution, 1977
In about 80% of all species of hermaphroditic flowering plants the pollen is incapable of germinating on the styles of the flowers that produce it, a condition known as selfincompatibility (Fryxell, 1960). The genetic control is usually simple, one-locus, and multiallelic (Lewis, 1954) although more complex two-locus systems are known (Lundquist, 1975).
Otto T, Solbrig, Reed C, Rollins
openaire   +2 more sources

Pollination Ecology of Sabatia Campenstris Nutt. (Gentianaceae)

open access: yesOklahoma Native Plant Record, 2016
Flower timing studies in June and July (1972) on populations of Sabatia campestris Nutt. show this plant to be allogamous (out crossing) under natural field conditions.
Constance E. Taylor
doaj   +1 more source

Induction of autogamy by treatment with trypsin in Paramecium Caudatum [PDF]

open access: yesJournal of Cell Science, 1979
ABSTRACT Firmly united conjugant pairs of P. caudatum were easily separated by treatment with trypsin, 0 · 025–1 · 0 mg/ml in 2 mM phosphate buffer at pH 7 · 2. Cytological observations showed that pairs separated by this means undergo normal meiosis and subsequent prezygotic divisions.
K, Mikami, S, Koizumi
openaire   +2 more sources

Comparative pollination role of stamens and breeding system in three species of Commelina (Commelinaceae) in Ile-Ife, Nigeria

open access: yesActa Botânica Brasílica, 2013
This study investigated pollination mechanisms and breeding systems in five Commelina variants: two subspecies of Commelina diffusa (C. diffusa subsp. aquatica and C. diffusa subsp. montana, each having two staminodes); two variants of C.
Matthew Oziegbe   +2 more
doaj   +1 more source

Preventing self-fertilization: Insights from Ziziphus species

open access: yesFrontiers in Plant Science, 2023
The fitness of self-progeny individuals is inferior to that of their outcrossed counterparts, resulting in a reduction in a plant population’s ability to survive and reproduce.
Noemi Tel-Zur
doaj   +1 more source

Changes in Reproductive Traits in Physalis philadelphica; An Unexpected Shift Toward Self-Incompatibility in a Domesticated Annual Fruit Crop

open access: yesFrontiers in Plant Science, 2021
Domestication is an evolutionary process with an impact on plant reproduction. Many domesticated plants are self-compatible (i.e., they lack mechanisms to reject their own pollen), but few domesticated plants are fully or partially self-incompatible.
Lislie Solís-Montero   +5 more
doaj   +1 more source

Self-fertility studies of some sweet cherry (Prunus avium L.) cultivars and selections

open access: yesInternational Journal of Horticultural Science, 2004
Fruit set of two sweet cherry cultivars (Alex' and 'Stella' ) and four Hungarian selections have been studied over two years following open pollination, unassisted self-pollination (autogamy) and artificial self-pollination (geitonogamy).
Zs. Békefi
doaj   +1 more source

The Mating System of the Wild-to-Domesticated Complex of Gossypium hirsutum L. Is Mixed

open access: yesFrontiers in Plant Science, 2018
The domestication syndrome of many plants includes changes in their mating systems. The evolution of the latter is shaped by ecological and genetic factors that are particular to an area.
Rebeca Velázquez-López   +7 more
doaj   +1 more source

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy