Results 11 to 20 of about 362 (94)

A revised view on the evolution of glutamine synthetase isoenzymes in plants. [PDF]

Plant J, 2022
SUMMARY Glutamine synthetase (GS) is a key enzyme responsible for the incorporation of inorganic nitrogen in the form of ammonium into the amino acid glutamine. In plants, two groups of functional GS enzymes are found: eubacterial GSIIb (GLN2) and eukaryotic GSIIe (GLN1/GS).
Valderrama-Martín JM, Ortigosa F, Ávila C, Cánovas FM, Hirel B, Cantón FR, Cañas RA.   +6 more
europepmc   +4 more sources

Palynology and Palaeoecology of the Zakeen Formation, Kish Gasfield, northern Persian Gulf [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2014
Introduction During Middle Devonian and contemporaneous with the global rise of sea-level, the westward transgression commenced from north and northeastern Iran and culminated in early Late Devonian.
Hossein Hashemi , Nima Nezam Vafa
doaj   +1 more source

Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants. [PDF]

FEBS J
Phylogenetic analyses of glutamine synthetase (GS) in seed plants revealed that all three major evolutionary lineages (GS2, GS1a, and GS1b) must have been present in the common ancestor, with GS2 being the first lineage to diverge. Unlike GS1b, GS1a and GS2 are usually single‐copy genes, even though they underwent duplications that resulted in ...
Aledo E, Cañas RA, Cantón FR, Aledo JC.   +3 more
europepmc   +2 more sources

PWO proteins are associated with PRC2 since their emergence in vascular plants. [PDF]

New Phytol
Summary The Polycomb repressive complex 2 (PRC2), a conserved histone methyltransferase complex, plays a central role in transcriptional silencing across eukaryotes. Here, we investigate the evolution of PWWP‐DOMAIN INTERACTORS OF POLYCOMBS (PWOs), which interact with PRC2, and examine the conservation of the PWOs‐PRC2 interaction across plant ...
Khan A, Haider S, Sharaf A, Kusová A, Skalák J, Jourdain C, Rennie M, Schrumpfová PP, Hejátko J, Schubert D, Farrona S, Mozgová I.   +11 more
europepmc   +2 more sources

The evolution of Hutchinsonian climatic niche hypervolumes in gymnosperms

Global Ecology and Biogeography, Volume 35, Issue 6, June 2026.
ABSTRACT Aim The niche is a fundamental concept in theoretical and experimental ecology and is used to describe a wide range of ecological processes from species' interactions with the environment to community assemblies. A common way to represent the niche is through a multidimensional geometry known as the Hutchinsonian niche hypervolume.
Caron FS, Burslem DFRP, Morimoto J.
europepmc   +2 more sources

Arboreal camera trapping sheds light on seed dispersal of the world’s only epiphytic gymnosperm: Zamia pseudoparasitica

Ecology and Evolution, Volume 12, Issue 3, March 2022., 2022
We conducted arboreal camera trapping in three sites along the Talamanca Cordillera to assess for potential seed dispersal agents of Zamia pseudoparasitica, which is the only known gymnosperm species to be epiphytic and it is endemic to the mountains of Western Panama.
Claudio M. Monteza‐Moreno, Lilisbeth Rodriguez‐Castro, Pedro L. Castillo‐Caballero, Edgar Toribio, Kristin Saltonstall   +4 more
wiley   +1 more source

A starting guide to root ecology: strengthening ecological concepts and standardising root classification, sampling, processing and trait measurements

New Phytologist, Volume 232, Issue 3, Page 973-1122, November 2021., 2021
Summary In the context of a recent massive increase in research on plant root functions and their impact on the environment, root ecologists currently face many important challenges to keep on generating cutting‐edge, meaningful and integrated knowledge.
Grégoire T. Freschet, Loïc Pagès, Colleen M. Iversen, Louise H. Comas, Boris Rewald, Catherine Roumet, Jitka Klimešová, Marcin Zadworny, Hendrik Poorter, Johannes A. Postma, Thomas S. Adams, Agnieszka Bagniewska‐Zadworna, A. Glyn Bengough, Elison B. Blancaflor, Ivano Brunner, Johannes H. C. Cornelissen, Eric Garnier, Arthur Gessler, Sarah E. Hobbie, Ina C. Meier, Liesje Mommer, Catherine Picon‐Cochard, Laura Rose, Peter Ryser, Michael Scherer‐Lorenzen, Nadejda A. Soudzilovskaia, Alexia Stokes, Tao Sun, Oscar J. Valverde‐Barrantes, Monique Weemstra, Alexandra Weigelt, Nina Wurzburger, Larry M. York, Sarah A. Batterman, Moemy Gomes de Moraes, Štěpán Janeček, Hans Lambers, Verity Salmon, Nishanth Tharayil, M. Luke McCormack   +39 more
wiley   +1 more source

Fig. 2 in Unveiling global species abundance distributions

, 2023
Fig. 2 | The temporal evolution of the gSAD. From top to bottom:Actinopterygii, Amphibia, Arachnida,Aves,Bivalvia, Cephalopoda, Cycadopsida,Insecta, Liliopsida and Mammalia.For some classes, the apparent unveiling is evident, such as for Aves.Each year ...
van Klink, Roel, Borda-de-Água, Luís, Callaghan, Corey T., Pereira, Henrique M., Rozzi, Roberto   +4 more
core   +1 more source

Functional and morphological evolution in gymnosperms: A portrait of implicated gene families

Evolutionary Applications, Volume 13, Issue 1, Page 210-227, January 2020., 2020
Abstract Gymnosperms diverged from their sister plant clade of flowering plants 300 Mya. Morphological and functional divergence between the two major seed plant clades involved significant changes in their reproductive biology, water‐conducting systems, secondary metabolism, stress defense mechanisms, and small RNA‐mediated epigenetic silencing.
Amanda R. De La Torre, Anthony Piot, Bobin Liu, Benjamin Wilhite, Matthew Weiss, Ilga Porth   +5 more
wiley   +1 more source

Algunos aspectos de la evolución de la familia génica de glutamina sintetasa en plantas [PDF]

, 2022
En las plantas, la actividad glutamina sintetasa reside en miembros de la superfamilia GSII, que forman dos grupos de enzimas GS funcionales: la GSIIb eubacteriana (GLN2) y la GSIIe eucariota (GLN1/GS).
Cánovas-Ramos, Francisco Miguel, Cañas-Pendón, Rafael Antonio, Ávila-Sáez, Concepción, Valderrama-Martín, José Miguel, Ortigosa Peña, Francisco, Hirel, Bertrand, Ruiz-Canton, Francisco Javier   +6 more
core