Isotopic and molecular distributions of biochemicals from fresh and buried Rhizophora mangle leaves†
نویسندگان
چکیده
The SCOOBy Lab, Department of Oceanography, Texas A1M University, College Station, TX 77843-3146, USA. E-mail: [email protected] Alaska Stable Isotope Facility: Water and Environmental Research Center/School of Fisheries and Ocean Sciences, Duckering Building, University of Alaska, Fairbanks, AK, 99775-5860, USA University of Southern California, 3616 Trousdale Parkway, Los Angeles, CA, 900890371, USA Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington DC, 20015-1305, USA
منابع مشابه
A taphonomic study of C and N values in Rhizophora mangle leaves for a multi-proxy approach to mangrove palaeoecology
The response of mangrove ecosystems to environmental change can be examined with stable isotopic tracers of C and N. The C and N of a taphonomic series of Rhizophora mangle L. (Red mangrove) leaves were analyzed from Twin Cays, Belize, to facilitate reconstruction of past mangrove ecosystems. On Twin Cays, fresh leaves of dwarf R. mangle trees ( 0.5 m high) were found to have more negative dN v...
متن کاملUnusually negative nitrogen isotopic compositions (δ15N) of mangroves and lichens in an oligotrophic, microbially-influenced ecosystem
Extremes in δ15N values in mangrove tissues and lichens (range =+4 to −22‰) were measured from a mangrove forest ecosystem located on Twin Cays, offshore islands in Belize, Central America. The N isotopic compositions and concentrations of NH+4 /NH3 in porewater, rainwater, and atmospheric ammonia, and the δ15N of lichens, mangrove leaves, roots, stems, and wood were examined to study the bioge...
متن کاملEvaluation of molluscicidal activity of three mangrove species (Avicennia schaueriana, Laguncularia racemosa and Rhizophora mangle) and their effects on the bioactivity of Biomphalaria glabrata Say, 1818
Schistosomiasis is a disease of global extent reaching populations in social vulnerability. One of the control measures of this parasitosis is the use of molluscicidal substances that can fight snails of the genus Biomphalaria, intermediate hosts of Schistosoma mansoni. The aim of this work was to study the toxic activity of three mangrove species (Avicennia schaueriana Stapf. & Leech, ex Molde...
متن کاملLeaf morphological strategies of seedlings and saplings of Rhizophora mangle (Rhizophoraceae), Laguncularia racemosa (Combretaceae) and Avicennia schaueriana (Acanthaceae) from Southern Brazil.
The initial phase of a plant life cycle is a short and critical period, when individuals are more vulnerable to environmental factors. The morphological and anatomical study of seedlings and saplings leaf type enables the understanding of species strategies of fundamental importance in their establishment and survival. The objective of this study was to analyze the structure of seedlings and sa...
متن کاملBiochemical and ecological characterization of two peroxidase isoenzymes from the mangrove, Rhizophora mangle
This study examines phenolic peroxidase (POX) in Rhizophora mangle L. leaves in order to assess its role in phenolic manipulation and H 2 O 2 scavenging. Sun-exposed and understorey leaves experiencing varying degrees of nutrient stress were analysed from an oligotrophic cay off the coast of Belize. POX activity was unaffected by growth environment, but increased throughout leaf development and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Geochemical Transactions
دوره 4 شماره
صفحات -
تاریخ انتشار 2003