ABSTRACT
Abstract Vegetative aerial organs are considerably more exposed to environmental conditions and can reflect the specific adaptations of plants to their local environment. Aldama grandiflora species are known to be widely distributed in Brazil; therefore, individuals from different populations of this species are thought to be exposed to different abiotic and biotic conditions. Several anatomical studies conducted on Brazilian Aldama species have mainly focused on the qualitative anatomical characters or traits of these species, but not on their quantitative traits. In this study, we evaluated whether climate and soil conditions can change the morphometry among individuals of A. grandiflora collected from six sites in the Goiás State, Brazil, by assessing their anatomical characters. Further, soil sampling was performed, and climate data were collected from all the six sites. The analysis indicated few statistical differences among the populations evaluated, showing that A. grandiflora presented consistent leaf and stem anatomical characteristics. The small morpho-anatomical differences found among individuals of the different populations evaluated, reflected the soil conditions in which these populations were grown. Therefore, environmental factors have a significant influence on the morpho-anatomy of Aldama grandiflora.
Resumo Os órgãos vegetativos aéreos estão consideravelmente mais expostos às condições ambientais e podem refletir as adaptações específicas das plantas ao seu habitat. A espécie Aldama grandiflora é amplamente distribuída no Brasil e, dessa forma, indivíduos de diferentes populações podem estar expostos a diferentes condições ambientais. Vários estudos anatômicos realizados com espécies brasileiras do gênero Aldama têm abordado, principalmente, as características anatômicas qualitativas dessas espécies, mas não em suas características quantitativas. Neste estudo avaliamos se as condições climáticas e do solo podem alterar a morfometria entre os indivíduos de A. grandiflora coletados em seis populações do Estado de Goiás. Foram avaliados os caracteres anatômicos foliares e caulinares, além da amostragem do solo e coleta de dados climáticos, para os seis locais. A análise indicou algumas diferenças estatísticas entre as populações avaliadas, mostrando que A. grandiflora apresentou características anatômicas foliares e caulinares bastante consistentes. As pequenas diferenças morfo-anatômicas encontradas entre indivíduos das diferentes populações avaliadas, refletiram as condições do solo nos quais essas populações se desenvolveram. Assim sendo, fatores ambientais relacionados ao clima e condições do solo têm uma influência significativa sobre a morfo-anatomia de Aldama grandiflora.
Subject(s)
Soil , Adaptation, Physiological/physiology , Climate , Asteraceae/physiology , Brazil , Plant Stems/physiology , Plant Stems/ultrastructure , Plant Leaves/physiology , Plant Leaves/ultrastructure , Asteraceae/ultrastructureABSTRACT
The "chía", Salvia hispanica L. (Lamiaceae), is an herbaceous annual plant native to Mexico. Its fruits contain antioxidant substances important for human nutrition, such as linoleic and alpha-linolenic acids, natural sources of omega-3 and omega-6 acids. The aim of this work was to establish morphological and anatomical diagnostic characters for leaf, stem, fruit and seed of the species in order to contribute to the botanical quality control in the marketing process as raw material for food and/or pharmaceutical industry.
Salvia hispanica L., "chía", (Lamiaceae), es una planta herbácea, anual, originaria de México. Sus frutos contienen antioxidantes, ácido linoleico y alfa-linolénico, fuente natural de ácidos grasos omega-6 y omega-3, importantes en la nutrición humana. El objetivo de éste trabajo fue establecer caracteres morfológicos y anatómicos diagnósticos de hoja, tallo, fruto y semilla de dicha especie, a fin de contribuir al control de calidad botánico en el proceso de comercialización como materia prima para la industria alimenticia y/o farmacéutica.
Subject(s)
Plant Leaves/anatomy & histology , Salvia/anatomy & histology , Seeds/anatomy & histology , Plant Stems/anatomy & histology , Argentina , Plant Leaves/ultrastructure , Quality Control , Salvia/ultrastructure , Seeds/ultrastructure , Plant Stems/ultrastructureABSTRACT
The macro- and micromorphology of the root, stem and leaf of Sonchus oleraceus L. were presented so as to facilitate its identification both in the entire and powdered forms