SALT LOADING DOES NOT CONTROL CO2 EXCHANGE IN RAMALINA MENZIESII TAYL.
نویسندگان
چکیده
منابع مشابه
Local genetic structure in a North American epiphytic lichen, Ramalina menziesii (Ramalinaceae).
Epiphytic lichens possess unique life history traits that can have conflicting effects on genetic structure: symbiotic mutualism between a fungus with its algal or cyanobacterial photobiont, association with a host plant, and ability to reproduce sexually and asexually. Our study species, Ramalina menziesii, has small ascospores that can facilitate long-distance gene movement, and it is capable...
متن کاملPhylogeography of Ramalina menziesii, a widely distributed lichen-forming fungus in western North America.
The complex topography and climate history of western North America offer a setting where lineage formation, accumulation and migration have led to elevated inter- and intraspecific biodiversity in many taxa. Here, we study Ramalina menziesii, an epiphytic lichenized fungus with a range encompassing major ecosystems from Baja California to Alaska to explore the predictions of two hypotheses: (i...
متن کاملFungal-algal interactions in Ramalina menziesii and its associated epiphytic lichen community
Lichens are a fascinating example of a symbiotic mutualism. It is still uncertain which processes guide fungal-photobiont interactions, and whether they are random or of a more complex nature. Here, the fungal-algal interactions in Ramalina menziesii and co-occurring taxa are analyzed by using DNA sequences of the algal Internal Transcribed Spacer region (ITS), to investigate fungalalgal associ...
متن کاملJoint Loading in Runners Does Not Initiate Knee Osteoarthritis.
Runners do not have a greater prevalence of knee osteoarthritis (OA) than nonrunners. The hypothesis that joint loads in running do not cause OA is forwarded. Two mechanisms are proposed: 1) cumulative load, which is surprisingly low in running, is more important for OA risk than peak load, and 2) running conditions cartilage to withstand the mechanical stresses of running.
متن کاملIdentity and genetic structure of the photobiont of the epiphytic lichen Ramalina menziesii on three oak species in southern California.
Lichens, a classic example of an obligate symbiosis between fungi and photobionts (which could be algae or cyanobacteria), are abundant in many terrestrial ecosystems. The genetic structure of the photobiont population found in association with a lichen-forming fungal species could be affected by fungal reproductive mode and by the spatial extent of gene flow in the photobiont. Using DNA sequen...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1987
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1987.tb04791.x