Results 71 to 80 of about 52,751 (307)

Localization of actin in pollen tubes of Ornithogalum virens L.

open access: yesActa Societatis Botanicorum Poloniae, 2014
The germinating pollen grain (in vivo on the stigma or in vitro in germination medium) forms a pollen tube which transports the vegetative nucleus and generative cell/two sperm cells participating in the process of double fertilization. The growth of the
Małgorzata Stępka   +3 more
doaj   +1 more source

Ovary Signals for Pollen Tube Guidance in Chalazogamous Mangifera indica L.

open access: yesFrontiers in Plant Science, 2021
Most flowering plants show porogamy in which the pollen tubes reach the egg apparatus through the micropyle. However, several species show chalazogamy, an unusual pollen tube growth, in which the pollen tubes reach the embryo sac through the chalaza ...
Jorge Lora   +5 more
doaj   +1 more source

Exploration of Limonium interspecific breeding possibility : a thesis presented in partial fulfilment of the requirement for the degree of Master of Science in Plant Science at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 1995
Interspecific crossability was investigated in the genus Limonium (Plumbaginaceae). Six Limonium species were chosen for this study, five of which are dimorphic and L.perigrinum which is monomorphic.
Zhang, Celia
core  

Suitability of leguminous cover crop pollens as food source for the green lacewing Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae). [PDF]

open access: yes, 2006
Diversification of crops with species that provide suitable pollen for predators may reduce pest population on crops by enhancing predator effectiveness.
Euzébio, Denise E.   +4 more
core   +2 more sources

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

MYB97, MYB101 and MYB120 function as male factors that control pollen tube-synergid interaction in Arabidopsis thaliana fertilization. [PDF]

open access: yesPLoS Genetics, 2013
Pollen tube reception involves a pollen tube-synergid interaction that controls the discharge of sperm cells into the embryo sac during plant fertilization.
Yan Liang   +8 more
doaj   +1 more source

Pollination, pollen tube growth, and fertilization independently contribute to fruit set and development in tomato

open access: yesFrontiers in Plant Science, 2023
In flowering plants, pollination, pollen tube growth, and fertilization are regarded as the first hierarchical processes of producing offspring. However, their independent contributions to fruit set and development remain unclear.
Long T. Tran   +6 more
doaj   +1 more source

Effects of therapeutants and temperature on pollen germination, pollen tube growth and fruit set in fruit crops : a thesis presented in partial fulfilment of the requirements for the degree of Master of Horticultural Science at Massey University [PDF]

open access: yes, 1980
This study involved assessments of therapeutant effects on pollination and fruit set; of temperature effects on pollen germination and pollen tube growth in apples, peaches and kiwifruits; of flowerage effects on pollen germination and pollen tube growth
Manandhar, Dwarika Narayan
core  

Graphene oxide impairs the pollen performance of Nicotiana tabacum and Corylus avellana suggesting potential negative effects on the sexual reproduction of seed plants [PDF]

open access: yes, 2018
The production of graphene based materials (GBMs) is steadily increasing but the effects of the possible release of GBMs in the environment are far from being understood.
Cai, Giampiero   +8 more
core   +5 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

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