Results 21 to 30 of about 7,052 (216)

First record of Loranthaceae mistletoes on gymnosperm hosts from Nepal [PDF]

open access: yes, 1970
Lorarthaceae mistletoes rarely infect gymnosperm hosts. Scurrula pulverulenta (Wall). G. Don and Scurrula elata (Edgew). dancer have been  recorded for the first time from the gymnosperm hosts Metasequoia glyptostroboides Hu & W.C. Cheng (Taxodiaceae)
M. P. Devkota, R. M Kunwar
core   +1 more source

Assessing the Gene Content of the Megagenome: Sugar Pine (Pinus lambertiana)

open access: yesG3: Genes, Genomes, Genetics, 2016
Sugar pine (Pinus lambertiana Douglas) is within the subgenus Strobus with an estimated genome size of 31 Gbp. Transcriptomic resources are of particular interest in conifers due to the challenges presented in their megagenomes for gene identification ...
Daniel Gonzalez-Ibeas   +8 more
doaj   +1 more source

High-throughput sequencing-based assembly of chloroplast genomes of five pine tree species

open access: yesMitochondrial DNA. Part B. Resources, 2020
Pinus plants are the largest existing group of gymnosperms and one of the most highly differentiated taxa. Due to its huge ecological, economic, and scientific value, the genetic diversity and the relationship between the intraspecific evolution of Pinus
Qunfeng Luo   +5 more
doaj   +1 more source

Ginkgo biloba and Helianthus annuus show different strategies to adjust photosynthesis, leaf water relations, and cell wall composition under water deficit stress

open access: yesPhotosynthetica, 2020
Cell wall thickness (Tcw) determines photosynthesis and leaf elasticity. However, only a few studies in angiosperms addressed cell wall composition implication in regulating photosynthesis and leaf water relations through mesophyll conductance (gm) and ...
M. ROIG-OLIVER   +2 more
doaj   +1 more source

SPERMATOZOIDS IN GYMNOSPERMS

open access: yesAnnals of Botany, 1897
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ikeno, Seiichirō, Hirase, S.
openaire   +3 more sources

Application of Proteomics to the Study of Pollination Drops

open access: yesApplications in Plant Sciences, 2013
Premise of the study: Pollination drops are a formative component in gymnosperm pollen-ovule interactions. Proteomics offers a direct method for the discovery of proteins associated with this early stage of sexual reproduction.
Natalie Prior   +13 more
doaj   +1 more source

Polyploidy in Gymnosperms [PDF]

open access: yesEvolution, 1959
The gymnosperms constitute a primitive group of seed plants which have a considerable evolutionary interest. A substantial amount of literature on the morphology of the group exists, but very little has been written about the various cytogenetic factors responsible for evolution within the group.
openaire   +1 more source

Comparisons among biomass allocation and spatial distribution patterns of some vine, pteridophyte, and gymnosperm shoots [PDF]

open access: yes, 1994
The interspecific allometry of leaf, stem, and reproductive biomass distal to stem diameter was determined for a total of 12 angiosperm vine (Clematis dioscoreifolia [C.
Karl J. Niklas, Niklas, K
core   +1 more source

The Evolution of Sexual Fluids in Gymnosperms From Pollination Drops to Nectar

open access: yesFrontiers in Plant Science, 2018
A current synthesis of data from modern and fossil plants paints a new picture of sexual fluids, including nectar, as a foundational component of gymnosperm reproductive evolution.
Patrick von Aderkas   +2 more
doaj   +1 more source

Plant Evolution: Pulses of Extinction and Speciation in Gymnosperm Diversity [PDF]

open access: yes, 2011
SummaryLiving gymnosperms represent the survivors of ancient seed plant lineages whose fossil record reaches back 270 million years. Two recent studies find that recent pulses of extinction and speciation have shaped today's gymnosperm diversity ...
Davis, Charles C., Schaefer, Hanno
core   +1 more source

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