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Algae: Anatomy, Biochemistry, and Biotechnology - Chapter 6

Bạn đã có nhọn ra trong chương trước, tảo phát triển trong môi trường sống Mỗi Hầu như trong mỗi phần của thế giới. HỌ có thể được tìm thấy trên các chất nền khác nhau rất tự nhiên, từ động vật (ốc, cua, con lười, rùa và là chủ tảo) để cây (thân cây, cành và lá, nhà máy nước, và macroalgae), suối và sông để hypersaline và đầm phá hồ muối. Ngoài ra CHÚNG cư nơi cư trú nhân tạo, đập và hồ chứa Chẳng hạn như, đài phun nước và hồ bơi, mục đích lon, chai, chậu. | 6 Algal Culturing COLLECTION STORAGE AND PRESERVATION As already pointed out in the previous chapters algae grow in almost every habitat in every part of the world. They can be found on very different natural substrates from animals snails crabs sloths and turtles are algal hosts to plants tree trunks branches and leaves water plants and macroalgae from springs and rivers to hypersaline lagoons and salt lakes. They also colonize artificial habitats such as dams and reservoirs fountains and pools but cans bottles plant pots or dishes allow algae to extend their natural range. The ubiquity of these organisms together with the plasticity of their metabolic requirements make many algal species easily available for investigation collection or simple observation. Floating microalgae can be collected with a mesh net e.g. with 25-30 pm pores or if in sufficient quantity i.e. coloring the water by simply scooping ajar through the water. A small amount of the bottom sediments will also provide many of the algal species that live in or on these sediments. Some algae live attached to other types of substrate such as dead leaves twigs and any underwater plants which may be growing in the water. Macroalgae and the attached microalgae can be collected by hand or with a knife including part or all of the substrate rock plant wood etc. if possible. Algae growing on soil are difficult to collect and study many requiring culturing before sufficient and suitable material is available for identification. Any sample should be labeled with standard information such as the locality date of collection and as many of the following features as possible whether the water is saline brackish or fresh whether the collection site is terrestrial a river a stream or a lake whether the alga is submerged during water level fluctuations or floods whether the water is muddy or polluted whether the alga is free floating or attached and if the latter the type of substrate to which it is attached and the