Macaúba (Acrocomia aculeata) is a palm of economic importance, widely distributed in natural forests from Mexico to Uruguay. We analyzed the genetic diversity of populations of macaúba (A. aculeata) in the northern region of the State of Minas Gerais, Brazil. Young leaves from 10 macaúba individuals encompassing 49 genotypes of macaúba were collected from Montes Claros, Itacambira, Brasíli...

The stinging wasps (Hymenoptera: Aculeata) are an extremely diverse lineage of hymenopteran insects, encompassing over 70,000 described species and a diversity of life history traits, including ectoparasitism, cleptoparasitism, predation, pollen feeding (bees [Anthophila] and Masarinae), and eusociality (social vespid wasps, ants, and some bees) [1]. The most well-studied lineages of Aculeata a...

The aims of this work were to study the chemical composition of the essential oil from the leaves of Pereskia aculeata and to evaluate some biological activities of three leaf extracts. The phenolic content, antioxidant activity, and in vitro antimicrobial and antifungal activities were determined. The methanol extract showed antioxidant activity (EC50 7.09 mg/mL) and high polyphenols content (...

BACKGROUND AND AIMS Parkinsonia aculeata (Caesalpinaceae) is a perennial legume with seeds that have hard-seeded (physical) dormancy and are potentially very long-lived. Seed dormancy is a characteristic that can both help maximize the probability of seedling establishment and spread the risk of recruitment failure across years (bet-hedging). In this study, dormancy-release patterns are describ...

Macaw palm, Acrocomia aculeata is an oleaginous species of the Arecaceae family; it has been identified as one of the most promising plants for sustainable production of renewable energy, especially biodiesel. We developed an efficient protocol of genomic DNA extraction for A. aculeata using leaf and stipe tissues, based on the cationic hexadecyltrimethylammonium bromide method, and we evaluate...

Niurka R. Quintero, ∗ José A. Cuesta, † and Renato Alvarez-Nodarse ‡ Departamento de F́ısica Aplicada I, E. U. P., Universidad de Sevilla, Virgen de África 7, E-41011, Sevilla, Spain Grupo Interdisciplinar de Sistemas Complejos (GISC), Departamento de Matemáticas, Universidad Carlos III de Madrid, avda de la Universidad 30, E-28911 Leganés, Madrid, Spain Departamento de Análisis Matemático, Univ...

Arctic fjord systems experience large amplitudes of change in temperature and radiation regime due to climate warming the related decrease sea ice. The resultant increase irradiance entering water column influences photosynthetic activity benthic pelagic primary producers. subtidal brown alga Desmarestia aculeata and intertidal red alga Palmaria palmata populate cold-tempera...