Results 41 to 50 of about 3,957 (198)

Holocene vegetation dynamics of Grande Terre (Kerguelen Islands) inferred from sedimentary ancient DNA

Journal of Quaternary Science, EarlyView.
ABSTRACT While the Antarctic region has experienced significant climatic changes over the Holocene, few high‐resolution records have examined their effects on the local biota. In order to understand past ecological shifts and forecast future changes, it is important to obtain high‐resolution palaeoecological records from this region.
Xaali O'Reilly‐Berkeley, Aloïs Revéret, Youri Lammers, Maaike Zwier, Anne E. Bjune, Fabien Arnaud, Jostein Bakke, Sandra Nogué, Inger G. Alsos   +8 more
wiley   +1 more source

The most threatened plants receive the least scientific attention

PLANTS, PEOPLE, PLANET, EarlyView.
Plants sustain all life, providing the energetic and structural basis of ecosystems, but they face a growing risk of extinction. Reversing this decline requires an understanding of how scientific knowledge is distributed among species, and identification of the biases and gaps that hinder effective responses to the threats they face. However, we reveal
Renon S. Andrade, Matilda J. M. Brown, Leandro Freitas, Eimear M. Nic Lughadha   +3 more
wiley   +1 more source

Selaginella pectopuellensis (Selaginellaceae, Lycopodiophyta): a new species from Serra do Peito-de-Moça, Bahia, Brazil, with comments on the taxonomy of the species reported in the country

Boletín de la Sociedad Argentina de Botánica
Background and aims: Our research on neotropical Selaginella led us to examine a collection from the Atlantic Forest of Serra do Peito-de-Moça, Bahia, Brazil, initially determined as S.
Iván A. Valdespino, Christian A. López, Jorge I. Ceballos, José M. Palacios   +3 more
doaj   +1 more source

C‐type cyclin CycC1;1 delays leaf senescence by interacting with and inhibiting MYC2 in Arabidopsis

Journal of Integrative Plant Biology, EarlyView.
The C‐type cyclin CycC1;1 interacts with MYC2 and MED25 to block their association and RNA polymerase II recruitment, thereby repressing senescence‐associated gene expression and delaying leaf senescence in Arabidopsis. Unlike jasmonic acid‐inducible JAZ repressors, CycC1;1 operates independently of jasmonic acid signaling, representing an ...
Cai‐Yi Liao, Xiao‐Li Huang, Lin Li, Guo‐Mao Liu, Kai‐Kai Lu, Hong Yang, Song‐Qi Li, Peng‐Wei Jing, Ru‐Feng Song, Wen‐Cheng Liu   +9 more
wiley   +1 more source

Genetic, phenotypic, and ecological differentiation indicate a new cryptic and threatened species in the orchid genus Epidendrum from Alcatrazes Island, southeastern Brazil

Journal of Systematics and Evolution, EarlyView.
Epidendrum insularis occurs on the remote Alcatrazes Island in the southeastern Brazilian coast. The description of this new cryptic species was only possible by the joint use of molecular markers, reproductive experiments, flower morphometry, functional traits, and community analysis.
Beatriz L. Arida, Giovana N. Trotta, Beatriz C. De Marco, Iris D. P. Ribeiro, Raphael da Silva, Thales M. de Lima, Welington L. Sachetti Junior, Vitor de A. Kamimura, Gabriel P. Sabino, Bárbara S. S. Leal, Lívia Garcia, Edlley M. Pessoa, Fabio Pinheiro   +12 more
wiley   +1 more source

Organellar-genome analyses from the lycophyte genus Isoetes L. show one of the highest frequencies of RNA editing in land plants

Frontiers in Plant Science
RNA editing is a post-transcriptional process that challenges the central dogma of molecular biology by modifying RNA sequences, introducing nucleotide changes at specific sites, and generating functional diversity beyond the genomic code, especially ...
Jovani Bernardino de Souza Pereira, Jovani Bernardino de Souza Pereira, Renato Renison Moreira Oliveira, Santelmo Vasconcelos, Mariana Costa Dias, Cecı́lio Frois Caldeira, Dietmar Quandt, Guilherme Oliveira, Jefferson Prado   +8 more
doaj   +1 more source

Stepwise evolution of the developmental and symbiotic functions of DELLA in land plants

New Phytologist, EarlyView.
Proposed model for the stepwise evolution of DELLA functions in the green lineage.
Katharina Melkonian, Tifenn Pellen, Katinka Bünger, Océane Thiercelin, Aurélie Le Ru, Mélanie K. Rich, Matheus E. Bianconi, Jean Keller, Maxime Bonhomme, Pierre‐Marc Delaux   +9 more
wiley   +1 more source

Editorial: Biology, systematics, and evolution of ferns and lycophytes in the omics era

, 2023
Editorial on the Research Topic Biology, systematics, and evolution of ferns and lycophytes in the omics era Ferns and lycophytes are distinct evolutionary lineages of vascular plants, with ferns being the sister group to seed plants.
Almeida, Thaís, Elias, Rouhan, Germinal, Salino, Alexandre, Kuo, Li-Yaung   +3 more
core   +1 more source

Fossil evidence for silica biomineralization in Permian lycophytes. [PDF]

Natl Sci Rev
This paper reports the first in-situ fossil evidence for silica biomineralisation in Permian plants. The discovery reinforces the significant role that land plants have played in influencing the evolution of Earth systems in deep time.
Feng Z, Sui Q, Wei HB, Chen J.
europepmc   +3 more sources

Circadian Oscillations in Branchlet Angle and Irradiance‐Dependent Acclimation in Chara braunii Under Continuous Light

Plant Direct, Volume 10, Issue 10, October 2026.
ABSTRACT Endogenous biological rhythms are central to temporal organization in land plants, yet their evolutionary origins in streptophyte algae remain unresolved. We investigated whether rhythmic morpho‐physiological processes in Chara braunii are consistent with endogenous regulation and how continuous light intensity modulates these responses. In C.
Alena‐Maria Maidel, Katarina Kurtović, Carolin M. Heise, Stanislav Vosolsobě, Jan Petrášek, Stefan Timm, Hendrik Schubert   +6 more
wiley   +1 more source