Results 31 to 40 of about 3,180,736 (291)

Variation in plastid genomes in the gynodioecious species Silene vulgaris

open access: yesBMC Plant Biology, 2019
Background Gynodioecious species exist in two sexes – male-sterile females and hermaphrodites. Male sterility in higher plants often results from mitonuclear interaction between the CMS (cytoplasmic male sterility) gene(s) encoded by mitochondrial genome
Manuela Krüger   +4 more
doaj   +1 more source

Evolution of distyly breakdown in Palicoureeae Robbr. & Manen and Psychotrieae Cham. & Schltdl. (Rubiaceae)

open access: yesActa Botânica Brasílica, 2022
Distyly is a floral polymorphism with reciprocal placement of male and female structures, heteromorphic self-incompatibility, and other ancillary traits. However, breeding system breakdowns and loss of polymorphism are common.
Ebenézer B. Rodrigues   +3 more
doaj   +1 more source

Plant Reproduction [PDF]

open access: yesThe Plant Cell, 2002
In a letter addressed to Joseph Hooker in 1879, Charles Darwin referred to the rapid development and diversification of the flowering plants in recent geological times as an “abominable mystery.” The mystery of the origin of angiosperms, the development of floral characters, and the ...
openaire   +2 more sources

Recent advances in understanding of meiosis initiation and the apomictic pathway in plants

open access: yesFrontiers in Plant Science, 2014
Meiosis, a specialized cell division to produce haploid cells, marks the transition from a sporophytic to a gametophytic generation in the life cycle of plants.
Chung-Ju Rachel Wang   +2 more
doaj   +1 more source

Is bacterial microbiome from the Polemonium caeruleum L. (Polemoniaceae) nectar geographically variable?

open access: yesActa Societatis Botanicorum Poloniae, 2019
Floral nectar is one of the key rewards in the mutualistic interactions between plants and pollinators. However, there is a growing amount of evidence that shows that another group of organisms may be involved in the pollination process, namely the ...
Justyna Ryniewicz   +3 more
doaj   +1 more source

Toward a Molecular Understanding of Plant Hormone Actions [PDF]

open access: yes, 2016
Plants rely on a diverse set of small-molecule hormones to regulate every aspect of their biological processes including development, growth, and adaptation. Since the discovery of the first plant hormone, auxin, hormones have always been at the frontier
Matsuoka, M.   +23 more
core   +1 more source

Parasitoid load affects plant fitness in a tritrophic system [PDF]

open access: yes, 2008
Plants attacked by herbivorous insects emit volatile compounds that attract predators or parasitoids of the herbivores. Plant fitness increases when these herbivorous insects are parasitized by solitary parasitoids, but whether gregarious koinobiont ...
Dicke, M.   +4 more
core   +1 more source

Protein Farnesylation Takes Part in Arabidopsis Seed Development

open access: yesFrontiers in Plant Science, 2021
Protein farnesylation is a post-translational modification regulated by the ERA1 (Enhanced Response to ABA 1) gene encoding the β-subunit of the protein farnesyltransferase in Arabidopsis.
Valentin Vergès   +10 more
doaj   +1 more source

Plant reproductive genomics at the Plant and Animal Genome Conference [PDF]

open access: yesComparative and Functional Genomics, 2005
Exciting advances in our understanding of plantreproductive biology are being spurred both bynew research on established model systems andby the emergence of new models. Moreover, com-parative analyses are placing knowledge derivedfrom each of these systems into an evolution-ary framework and thus providing insights intothe processes responsible for ...
Leebens-Mack, Jim   +2 more
openaire   +2 more sources

Cold Tolerance of the Male Gametophyte during Germination and Tube Growth Depends on the Flowering Time

open access: yesPlants, 2016
In temperate climates, most plants flower during the warmer season of the year to avoid negative effects of low temperatures on reproduction. Nevertheless, few species bloom in midwinter and early spring despite severe and frequent frosts at that time ...
Johanna Wagner   +3 more
doaj   +1 more source

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