Edvan Assis Oliveira, Lenaldo Muniz de Oliveira, Angélica Maria Lucchese, Taliane Leila Soares
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The objective of this study was to characterize the climatic, geographical and edaphic aspects of sites where <i>M. martiussi</i> naturally occurs in the state of Bahia in order to understand the possible relationships and interactions between the environment and plant growth, development and production of essential oils. Vector files with climate, geomorphology, phytophysiognomy, and soil data were examined and the data were systematized and analyzed. The species occurs in semiarid areas with nutrient-poor, acidic and well-drained soils. The species has broad range of thermal adaptation, occurring from mountainous regions with high relief to low altitudes and in climatic zones characterized by scant and poorly distributed rainfall. 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引用次数: 0
摘要
巴西半干旱地区降雨稀少,气温较高。该地区的卡廷加生物群落拥有种类繁多的植物,具有经济潜力和应用价值,如草药。具有代表性的植物包括苎麻科植物,该科有 240 个属,7200 个种。Medusantha martiusii,俗称 "alfazemas de caboclo",其精油经常被发现具有生物活性,如细胞毒性、抗菌和杀虫作用,因此该物种具有重要的经济价值。本研究的目的是描述巴伊亚州马氏菌自然分布地的气候、地理和土壤特性,以了解环境与植物生长、发育和精油生产之间可能存在的关系和相互作用。研究人员检查了包含气候、地貌、植物生理学和土壤数据的矢量文件,并对数据进行了系统化和分析。该物种生长在半干旱地区,土壤养分贫乏,呈酸性,排水良好。该物种对热的适应范围很广,从地势较高的山区到低海拔地区,以及降雨稀少且分布不均的气候带都有分布。调查地点的植物精油含量存在定量差异,叶片和花朵的干重平均为 2.07%,同时还观察到植物精油与土壤中铁和锌浓度之间存在中等程度的显著交互作用。
Ecogeographic research and essential oil production of Medusantha martiusii (Benth.) Harley & J.F.B.Pastore (Lamiaceae)
The semiarid region of Brazil is marked by scarce rainfall and high temperatures. The Caatinga biome, established in this region, has great diversity of plants with economic potential and applications, such as in herbal medicine. Plant representatives include those of the family Lamiaceae, which has 240 genera and 7200 species. The essential oil of the species Medusantha martiusii, popularly known as “alfazemas de caboclo”, has often been found to have biological activities, such as cytotoxic, antimicrobial and insecticidal effects, thus making this species economically important. The objective of this study was to characterize the climatic, geographical and edaphic aspects of sites where M. martiussi naturally occurs in the state of Bahia in order to understand the possible relationships and interactions between the environment and plant growth, development and production of essential oils. Vector files with climate, geomorphology, phytophysiognomy, and soil data were examined and the data were systematized and analyzed. The species occurs in semiarid areas with nutrient-poor, acidic and well-drained soils. The species has broad range of thermal adaptation, occurring from mountainous regions with high relief to low altitudes and in climatic zones characterized by scant and poorly distributed rainfall. The essential oil content showed a quantitative variation across the surveyed sites, with an average of 2.07% by dry weight of leaves and flowers, and a moderate and significant interaction of the essential oil with Fe and Zn concentrations present in the soil were also observed.
期刊介绍:
Genetic Resources and Crop Evolution is devoted to all aspects of plant genetic resources research. It publishes original articles in the fields of taxonomical, morphological, physiological, biochemical, genetical, cytological or ethnobotanical research of genetic resources and includes contributions to gene-bank management in a broad sense, that means to collecting, maintenance, evaluation, storage and documentation.
Areas of particular interest include:
-crop evolution
-domestication
-crop-weed relationships
-related wild species
-history of cultivated plants including palaeoethnobotany.
Genetic Resources and Crop Evolution also publishes short communications, e.g. newly described crop taxa, nomenclatural notes, reports of collecting missions, evaluation results of gene-bank material etc. as well as book reviews of important publications in the field of genetic resources.
Every volume will contain some review articles on actual problems. The journal is the internationalized continuation of the German periodical Die Kulturpflanze, published formerly by the Institute of Plant Genetics and Crop Plant Research at Gatersleben, Germany.
All contributions are in the English language and are subject to peer reviewing.