Results 51 to 60 of about 14,689 (278)

REGULATORY NETWORK CONTROLLING OVULE DEVELOPMENT IN Arabidopsis thaliana [PDF]

open access: yes, 2013
In flowering plants ovules develop as lateral organ from the placenta and, once fertilized, give rise to seeds. My Ph.D. was mainly focused on the identification of the mechanisms controlling ovule number and development in Arabidopsis thaliana ...
F. Galbiati
core   +1 more source

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

Assessment of Cassava Pollen Viability and Ovule Fertilizability under Red-Light, 6-Benzyl Adenine, and Silver Thiosulphate Treatments

open access: yesPlants
Understanding pollen and ovule fertility as factors influencing fruit and seed set is important in cassava breeding. Extended daylength with red light (RL) and plant growth regulators (PGRs) have been used to induce flowering and fruit set in cassava ...
Julius K. Baguma   +13 more
doaj   +1 more source

Developmental and systematic value of flower reproductive organs in Artemisia annua [PDF]

open access: yesرستنی‌ها
This study aimed to determine the embryological characteristics of Artemisia annua L. (Asteraceae) with a focus on the development of pollen grains and ovules to help the taxonomic position of this species. Capitulum were studied using light and scanning
Zohreh Shirkhani   +2 more
doaj   +1 more source

Flower Biology and the Effects of Different Chemicals on Pollen Germination of Some Early Sweet Cherry Cultivars

open access: yesBrazilian Archives of Biology and Technology, 2021
Sweet cherry fruit is a tasty and valuable product for consumers. In order to increase the export share of cherry, which is also very important in export, it is beneficial to grow with cherry varieties that mature at different times. The cherries offered
Hasan Cumhur Sarısu
doaj   +1 more source

Species analysed; diaspore type; embryological data (An = anatropous ovule; Cam = campylotropous ovule; He = hemianatropous ovule; bi = bitegmic ovule; uni = unitegmic ovule); dormancy (PD = Physiological dormancy; PY = Physical Dormancy); Borhidi WB value (moisture indicator, 1 –plants of extremely dry habitats or bare rocks, 12- water plants, entirely submersed in water; [43]); location and habitat of collection sites.

open access: yes, 2019
Species analysed; diaspore type; embryological data (An = anatropous ovule; Cam = campylotropous ovule; He = hemianatropous ovule; bi = bitegmic ovule; uni = unitegmic ovule); dormancy (PD = Physiological dormancy; PY = Physical Dormancy); Borhidi WB ...
Levente Laczkó (8157360)   +6 more
core   +1 more source

PIN3 functions in ovule primordia initiation.

open access: yes, 2022
(A) PIN3 protein localization during ovule primordia initiation in pPIN3::PIN3-GFP line. Magnified views of the dashed squares from top to bottom in left panel are shown in right panel.
Jin-Hui Chang (7046336)   +8 more
core   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher   +12 more
wiley   +1 more source

Effect of Photo-Selective Shade Nets on Pollination Process and Nut Development of Corylus avellana L.

open access: yesFrontiers in Plant Science, 2020
Hazelnut (Corylus avellana L.) is one of the most appreciated nut crops, which is motivating the cultivation outside its historical production areas.
Devid Guastella   +6 more
doaj   +1 more source

Overexpression of GhSWEET42, a SWEET-like gene from cotton, enhances the oil content and seed size

open access: yesBiotechnology & Biotechnological Equipment, 2023
SWEET (‘sugars will eventually be exported transporters’) family genes reportedly play a critical role in sugar translocation and oil biosynthesis in various plant species. However, their functions in cotton are unknown.
Deying Wang   +5 more
doaj   +1 more source

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