Results 1 to 10 of about 55 (49)
The Diverse Iron Distribution in Eudicotyledoneae Seeds: From Arabidopsis to Quinoa [PDF]
Frontiers in Plant Science, 2019 Seeds accumulate iron during embryo maturation stages of embryogenesis. Using Arabidopsis thaliana as model plant, it has been described that mature embryos accumulate iron within a specific cell layer, the endodermis.
Miguel Angel Ibeas +11 more
doaj +8 more sources
Phylogenetic analysis of fossil flowers using an angiosperm-wide data set: proof-of-concept and challenges ahead. [PDF]
Am J Bot, 2020 Premise Significant paleobotanical discoveries in recent decades have considerably improved our understanding of the early evolution of angiosperms and their flowers. However, our ability to test the systematic placement of fossil flowers on the basis of phylogenetic analyses has remained limited, mainly due to the lack of an adequate, angiosperm‐wide ...
Schönenberger J +6 more
europepmc +2 more sources
Allotropy of selenium nanoparticles: Colourful transition, synthesis, and biotechnological applications. [PDF]
Microb Biotechnol, 2023 The present manuscript consists of a novel review compiling an updated state of the art about the synthesis, applications, and allotropic transitions of SeNPs within the circular economy concept. Abstract Elemental selenium (Se0) nanomaterials undergo allotropic transition from thermodynamically‐unstable to more stable phases.
Ruiz-Fresneda MA +3 more
europepmc +2 more sources
Genome-wide analysis of butterfly bush (Buddleja alternifolia) in three uplands provides insights into biogeography, demography and speciation. [PDF]
New Phytol, 2021 Summary Understanding processes that generate and maintain large disjunctions within plant species can provide valuable insights into plant diversity and speciation. The butterfly bush Buddleja alternifolia has an unusual disjunct distribution, occurring in the Himalaya, Hengduan Mountains (HDM) and the Loess Plateau (LP) in China.
Ma YP +9 more
europepmc +2 more sources
Pollen sterols are associated with phylogeny and environment but not with pollinator guilds. [PDF]
New Phytol, 2021 Summary Phytosterols are primary plant metabolites that have fundamental structural and regulatory functions. They are also essential nutrients for phytophagous insects, including pollinators, that cannot synthesize sterols. Despite the well‐described composition and diversity in vegetative plant tissues, few studies have examined phytosterol diversity
Zu P +11 more
europepmc +2 more sources
American Journal of Botany, Volume 110, Issue 8, August 2023., 2023 Abstract Premise Recent studies of floral disparity in the asterid order Ericales have shown that flowers vary strongly among families and that disparity is unequally distributed between the three flower modules (perianth, androecium, gynoecium). However, it remains unknown whether these patterns are driven by heterogeneous rates of morphological ...
Julian Herting +2 more
wiley +1 more source
Phylogenetic relationships and evolution of growth form in Cactaceae (Caryophyllales, Eudicotyledoneae) [PDF]
American Journal of Botany, 2010 Cactaceae is one of the most charismatic plant families because of the extreme succulence and outstanding diversity of growth forms of its members. Although cacti are conspicuous elements of arid ecosystems in the New World and are model systems for ecological and anatomical studies, the high morphological convergence and scarcity of phenotypic ...
Tania, Hernández-Hernández +5 more
openaire +2 more sources
Ecosphere, Volume 9, Issue 5, May 2018., 2018 Abstract Large‐scale environmental gradients have been invaluable for unraveling the processes shaping the evolution and maintenance of biodiversity. Environmental gradients provide a natural setting to test theories about species diversity and distributions within a landscape with changing biotic and abiotic interactions.
Stephanie Shooner +8 more
wiley +1 more source
Lilloa, 1960 Este artículo trata de los géneros Jacquemontia, Merremia y Aniseia de la flora argentina. Se publican la nueva especie Jacquemontia laxiflora y la nueva combinación Jacquemontia lorentzii (O.K.) (= Convolvulus lorentzii O.K.).
Carlos O'Donell
doaj
Notas sobre Convolvuláceas americanas
Lilloa, 1960 En este artículo, el autor hace algunas notas sinonímicas sobre varios taxones de Ipomoea y Merremia. El autor publica como nuevo el género Tetralocularia y las siguientes especies: Tetralocularia pennellit, Ipomoea peredot, I.
Carlos O'Donell
doaj