Results 51 to 60 of about 2,001,626 (195)
PLANTS, 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
The Ovule and Female Gametophyte of Dioon [PDF]
Botanical Gazette, 1906 1. Dioon occurs in abundance at Chavarrillo, Mexico. 2. It is probable that plants often reach an age of more than one thousand years. 3. The ovulate strobilus is more like the loose ovulate strobilus of Cycas than the compact ovulate strobili of the other genera. 4.
openaire +1 more source
Development of wild-type female gametophyte.
, 2013 A. A female gametophyte at FG1 showing functional megaspore (M) and degenerated megaspores (DM). B. A female gametophyte at FG2 with one nucleus at the chalazal pole (ChN), and the other nucleus at the micropylar pole (MN). The degenerated megaspores (DM)
Dong-Qiao Shi (326679) +4 more
core +1 more source
NADPH OXIDASE-DEPENDENT SUPEROXIDE PRODUCTION IN PLANT REPRODUCTIVE TISSUES
Frontiers in Plant Science, 2016 In the life cycle of a flowering plant, the male gametophyte (pollen grain) produced in the anther reaches the stigmatic surface and initiates the pollen-pistil interaction, an important step in plant reproduction, which ultimately leads to the delivery ...
Maria Jose eJimenez-Quesada +2 more
doaj +1 more source
Journal of Phycology, EarlyView.Abstract The relative rates of sexual versus clonal reproduction partition genetic diversity, but the quantification of these rates remains limited in natural populations. This knowledge gap is particularly acute among tropical macroalgae. Chondria tumulosa is a red macroalga that has been documented at high abundance in the three northernmost atolls ...
Taylor M. Williams +6 more
wiley +1 more source
The diversity of the pollen tube pathway in plants: towards an increasing control by the sporophyte
Frontiers in Plant Science, 2016 Plants, unlike animals, alternate multicellular diploid and haploid generations in their life cycle. While this is widespread all along the plant kingdom, the size and autonomy of the diploid sporophyte and the haploid gametophyte generations vary along ...
Jorge eLora +2 more
doaj +1 more source
Journal of Phycology, EarlyView.Abstract The sugar kelp Saccharina latissima is a promising candidate for sustainable aquaculture in the North Atlantic and Northeast Pacific, but genetic improvement has been hindered by a limited understanding of the genetic basis of economically important traits.
Stéphane Mauger +15 more
wiley +1 more source
microRNA‐mediated control of cell fate specification and patterning in Marchantia polymorpha
New Phytologist, EarlyView.The gemma developmental program in Marchantia polymorpha is coordinated by MpMIR166‐mediated repression of MpC3HDZ and auxin homeostasis. Summary MicroRNAs (miRNAs) are small non‐coding RNA molecules essential for growth and development in eukaryotes. In plants, the master gene DICER‐LIKE 1 (DCL1) catalyzes the biogenesis of miRNAs by processing double‐
Adolfo Aguilar‐Cruz +17 more
wiley +1 more source
Development of Male and Female Gametophytes in Cannabis sativa L. cv. Helena (Cannabaceae)
AgronomyThis study investigated key aspects of the reproductive potential of C. sativa cv. Helena. It focused on the development of male and female gametophytes, embryos, and endosperm formation.
Elina Yankova-Tsvetkova +3 more
doaj +1 more source
Frontiers in Plant Science, 2020 Reactive oxygen species (ROS) are toxic by-products of aerobic metabolism. In plants, they also function as important signaling molecules that regulate biotic and abiotic stress responses as well as plant growth and development.
Subramanian Sankaranarayanan +5 more
doaj +1 more source