A5013059058- Plant Diversity and Evolution
- Plant and animal studies
- Plant and Fungal Species Descriptions
- Botanical Research and Applications
- Plant Water Relations and Carbon Dynamics
- Plant Taxonomy and Phylogenetics
- Fern and Epiphyte Biology
- Forest ecology and management
- Mycorrhizal Fungi and Plant Interactions
- Tree Root and Stability Studies
- Ecology and Vegetation Dynamics Studies
- Tree-ring climate responses
- Plant Pathogens and Fungal Diseases
- Plant Parasitism and Resistance
- Horticultural and Viticultural Research
- Seedling growth and survival studies
- Environmental and biological studies
- Plant biochemistry and biosynthesis
- Mediterranean and Iberian flora and fauna
- Plant Reproductive Biology
- Invertebrate Taxonomy and Ecology
- Plant Surface Properties and Treatments
- Comparative Animal Anatomy Studies
- Phytochemical Studies and Bioactivities
- High Altitude and Hypoxia
Universidad Nacional Autónoma de México
2018-2025
Universidade Federal de Viçosa
2024-2025
Universidade Estadual Paulista (Unesp)
2022-2023
Smithsonian Institution
2016-2019
National Museum of Natural History
2016-2019
Universidade de São Paulo
2009-2018
Instituto de Botânica
2012
University of Helsinki
2010-2012
supplementary material of this IAWA list microscopic bark features, titled "recipes and protocols for histochemical tests", by solange c.
Background: Lianas present many interesting structural features that are linked to their climbing habit. Having lost substantial amounts of supporting tissue, these plants depend on external structures for support. Meanwhile, during evolutionary history, they have gained additional conductive and storage tissues. The wood lianas generally includes wider vessels, larger axial parenchyma, rays, longer fibres than those trees. Cambial variants represent another key anatomical feature lianas....
A new method is presented to prepare anatomical slides of plant materials including a combination soft and hard tissues, such as stems with cambial variants, arboreal monocotyledons, tree bark. The integrates previous techniques aimed at softening the samples making them thereby more homogeneous, use anti-tearing polystyrene foam solution. In addition, we suggest two other alternatives protect sections from tearing: adhesive tape and/or Mayer’s albumin adhesive, both combined This solution...
Summary The best explanations of the relationship between organismal form and function-those regarded by scientists as most solid — always account for both comparative, across-species, patterns, well experimental results. This is true in all biology, it study xylem structure-function relations, where there still a need physiology functional comparative wood anatomy to mutually complement each other. To illustrate magnitude urgency this need, we discuss Sherwin Carlquist’s postulate link...
SUMMARY Cambial variants represent a form of secondary growth that creates great stem anatomical diversity in lianas. Despite the importance cambial variants, nothing is known about developmental mechanisms may have led to current seen these stems. Here, thorough analysis all genera along phylogeny Bignonieae (Bignoniaceae) was carried out order detect when their ontogeny and there were shifts leading different patterns. We found species depart from common basis, with continuous, regularly...
Summary In the sieve elements ( SE s) of phloem, carbohydrates are transported throughout whole plant from their site production to sites consumption or storage. structure, especially pore‐rich end walls, has a direct effect on translocation efficiency. Differences in pore size and other features were interpreted as an evolutionary trend towards reduced hydraulic resistance. However, this never been confirmed. Anatomical data 447 species woody angiosperms gymnosperms used for phylogenetic...
• Premise of the study : The phloem is a plant tissue with critical role in nutrition and signaling. However, little still known about evolution this tissue. In lianas Bignoniaceae, two distinct types coexist: regular variant phloem. cells associated these are to be anatomically different; however, it unclear what steps were involved such differences. Methods Here we studied anatomical development representatives all 21 genera Bignonieae used phylogenetic framework investigate timing changes...
Wood (secondary xylem) is responsible for water transport and has been well-studied anatomically, ecologically, physiologically, phylogenetically. Comparative methods can reveal patterns of evolution xylem traits using knowledge from the phylogenetic history taxa branching pattern phylogenies. Bignoniaceae (Lamiales) a family pantropical plants various growth habits that includes trees, shrubs, lianas, which display diverse wood anatomies robust phylogenies are available. Here we review...
Background and Aims Phloem evolution has been explored in the literature across very broad scales, either for vascular plants as a whole or major plant groups, such monocotyledons former dicotyledons. However, it never examined way that would elucidate evolutionary shifts leading to diversification of phloem single lineages. Therefore, present study explores detail patterns tribe Bignonieae (Bignoniaceae). This group represents particularly good model studies since is known have conspicuous...
Summary Malpighiaceae are widely known for their large number of lianas. However, the family is ancestrally reconstructed as self-supporting, and clade Galphimioid represents one clades that retained this habit, occupying a wide array habitats being either shrubs or trees. Here we sampled 13 species collected from natural habitats, delimiting 14 variable characters, which 12 discrete two continuous, analyzing them under comparative phylogenetic framework. With our reconstruction, propose 8...
Despite the tremendous economic significance of grapes, systematics grape genus remains understudied. Based on recent fieldwork, phylogenomic analyses using both nuclear and plastid genomes, as well morphological comparisons, we report a new subgenus, Rojovitis , endemic to Mexico. The subgenus constitutes clade that diverged early in evolutionary history Vitis yet there is cytonuclear discordance its position, suggesting hybridization likely mechanism origin. Subgenus contains two species,...
Stem ontogeny and structure of two neotropical twining vines the genus Callaeum are described. Secondary growth in begins with a typical regular cambium that gradually becomes lobed as result variation xylem phloem production rates certain portions stem aligned orthostichies. As development progresses, lignified ray cells initially formed secondary detach on one side from adjacent tissues, forming natural fracture induces proliferation both axial nonlignified parenchyma. At same time,...
Phloem wedges furrowing the wood are one of most notorious, widespread types cambial variants in Angiosperms. Many lianas Malpighiaceae show these variations arrangement secondary tissues. Here we explore their ontogeny, structure, and evolution Malpighiaceae, where phloem appeared multiple times, showing how they have contributed to anatomical diversification family. Using a broad sampling with 143 species from 50 genera, covering all major lineages crossed data stem anatomy, phylogenetic...
Abstract Successive cambia in Vitaceae have been reported solely for Tetrastigma , a diverse genus of lianas found primarily tropical Asia, extending into Australia. However, the structure and origin these successive never fully studied. Here we report presence this cambial variant retinervum T. voinierianum describe its ontogeny detail latter. New appear successively stems differentiating from innermost parenchyma cells primary phloem, which are located interior to pericyclic fiber strands....
Premise Polishing entire stem and root samples is an effective method for studying their anatomy; however, polishing fresh to preserve woods with soft tissues or barks challenging given that shrink when dried. We propose sanding liquid‐preserved under water as alternative, it preserves all in intact clear state. Methods Results By manually grinding the surface of using three ascending grits waterproof sandpapers, excellent polished sanded obtained. The wood swarf goes into without clogging...
ABSTRACT Good anatomical sections can only be obtained with a perfectly sharp knife. Permanent steel microtome knives are present in numerous plant anatomy labs and they yield excellent results, the caveat that need to re-sharpened after use. Automatic knife sharpeners have been especially designed for this purpose, but require abrasives their use, which may expensive hard obtain. Here we describe illustrate detail an inexpensive, fast, widely accessible technique sharpen permanent using...
A taxonomic revision of Mcvaughia is presented, including the description a new species from state Piauí, Brazil, and notes on wood, secondary phloem, leaf, floral morpho-anatomy. We present key to species, full morphological descriptions, distribution map, distribution, ecology, etymology, conservation status for each species.