BIOL 336 Lecture 14: March 2nd 2017
13 Mar 2017
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Biol 336- lecture 14: coralline algae- subclass corallinophycideae, unifying features, 1. Protection from herbivores, protection from wave action abrasion and the environment, protection from pathogens and parasites: 2. Secondary pit connections are plugs between cells with a proteinaceous core and carbohydrate cap. Caps help link the cells: coralline reproductions, conceptacle: puffed up with tiny pore on top. Sporangia that have carpospores: coralline algae morphology (2 forms, crustose- lay flat on the surface that they grow on. Can be epiphytes or can be epizoic, epiphytic on other corallines. They cover a lot of the surface area. Some are quite unique and can dislodge form rock, roll around on the bottom of the ocean floor, and form these rhodoliths: articulated- grows upright. They are like a joint and can bend and flex in that non-calcified portion. Crustose can also be called nongeniculate: the ancestral form is crustose. Light intensity required for photosynthetic macrophytes: 2.
