Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- Cool Plants - Antarctic Research (3)
- Bryophytes (2)
- Electrometallurgy (2)
- Hot Plants - Floral Ovens (2)
- Hydrometallurgy (2)
-
- Pyrometallurgy (2)
- Windmill Islands. (1)
- ANCIENT AND MEDIEVAL (1)
- AOX (1)
- Aboveground biomass (1)
- Angiosperms (1)
- Antarctic (1)
- Antarctic • Bryum pseudotriquetrum • cell wall • Ceratodon purpureus • confocal microscopy • ozone depletion • Schistidium antarctici (Grimmia antarctici) • UV-screening compounds (1)
- Antheraxanthin (1)
- Arctic (1)
- CENTRAL ASIA. MARITIME AND TRADING (1)
- Chlorophyll (1)
- Clonal diversity (1)
- Cyanide resistant respiration (1)
- DNA damage (1)
- Development (1)
- Dispersal (1)
- Enlightened despots (1)
- Flavonoids (1)
- Great Empires (1)
- Greening (1)
- Height (1)
- History (1)
- History of metallurgy (1)
- Kinetics (1)
- Publication
Articles 1 - 9 of 9
Full-Text Articles in Plant Sciences
Functional Transition In The Floral Receptacle Of The Sacred Lotus (Nelumbo Nucifera): From Thermogenesis To Photosynthesis, R. E. Miller, J. R. Watling, Sharon A. Robinson
Functional Transition In The Floral Receptacle Of The Sacred Lotus (Nelumbo Nucifera): From Thermogenesis To Photosynthesis, R. E. Miller, J. R. Watling, Sharon A. Robinson
Sharon Robinson
The receptacle of the sacred lotus is the main source of heat during the thermogenic stage of floral development. Following anthesis, it enlarges, greens and becomes a fully functional photosynthetic organ. We investigated development of photosynthetic traits during this unusual functional transition. There were two distinct phases of pigment accumulation in receptacles. Lutein and photoprotective xanthophyll cycle pigments accumulated first with 64% and 95% of the maximum, respectively, present prior to anthesis. Lutein epoxide comprised 32% of total carotenoids in yellow receptacles, but declined with development. By contrast, more than 85% of maximum total chlorophyll, β-carotene and Rubisco were produced …
Responses Of Plants In Polar Regions To Uvb Exposure : A Meta-Analysis, K. K. Newsham, Sharon A. Robinson
Responses Of Plants In Polar Regions To Uvb Exposure : A Meta-Analysis, K. K. Newsham, Sharon A. Robinson
Sharon Robinson
We report a meta-analysis of data from 34 field studies into the effects of UV-B radiation on Arctic and Antarctic bryophytes and angiosperms. The studies measured plant responses to decreases in UV-B radiation under screens, natural fluctuations in UV-B irradiance, or increases in UV-B radiation applied from fluorescent UV lamps. Exposure to UV-B radiation was found to increase the concentrations of UV-B absorbing compounds in leaves or thalli by 7% and 25% (expressed on a mass or area basis, respectively). UV-B exposure also reduced aboveground biomass and plant height by 15% and 10%, respectively, and increased DNA damage by 90%. …
Genetic Structure Of East Antarctic Populations Of The Moss Ceratodon Purpureus, L. J. Clarke, D. J. Ayre, Sharon A. Robinson
Genetic Structure Of East Antarctic Populations Of The Moss Ceratodon Purpureus, L. J. Clarke, D. J. Ayre, Sharon A. Robinson
Sharon Robinson
The capacity of the polar flora to adapt is of increasing concern given current and predicted environmental change in these regions. Previous genetic studies of Antarctic mosses have been of limited value due to a lack of variation in the markers or non-specificity of the methods used. We examined the power of five microsatellite loci developed for the cosmopolitan moss Ceratodon purpureus to detect genetically distinct clones and infer the distribution of clones within and among populations from the Windmill Islands, East Antarctica. Our microsatellite data suggest extraordinarily high levels of variation reported in RAPD studies were artificially elevated by …
Two Cys Or Not Two Cys? That Is The Question; Alternative Oxidase In The Thermogenic Plant Sacred Lotus, Nicole M. Grant, Yoshihiko Onda, Yusuke Kakizaki, Kkikukatsu Ito, Jennifer R. Watling, Sharon A. Robinson
Two Cys Or Not Two Cys? That Is The Question; Alternative Oxidase In The Thermogenic Plant Sacred Lotus, Nicole M. Grant, Yoshihiko Onda, Yusuke Kakizaki, Kkikukatsu Ito, Jennifer R. Watling, Sharon A. Robinson
Sharon Robinson
Sacred lotus (Nelumbo nucifera) regulates temperature in its floral chamber to 32°C to 35°C across ambient temperatures of 8°C to 40°C with heating achieved through high alternative pathway fluxes. In most alternative oxidase (AOX) isoforms, two cysteine residues, Cys1 and Cys2, are highly conserved and play a role in posttranslational regulation of AOX. Further control occurs via interaction of reduced Cys1 with α-keto acids, such as pyruvate. Here, we report on the in vitro regulation of AOX isolated from thermogenic receptacle tissues of sacred lotus. AOX protein was mostly present in the reduced form, and only a small fraction could …
Researches On Copper. History & Metallurgy, Fathi Habashi
Researches On Copper. History & Metallurgy, Fathi Habashi
Fathi Habashi
Gold. History, Metallurgy, Culture, Fathi Habashi
Gold. History, Metallurgy, Culture, Fathi Habashi
Fathi Habashi
Understanding The Tolerance Of Antarctic Mosses To Climate Change, Sharon A. Robinson, L J. Clarke
Understanding The Tolerance Of Antarctic Mosses To Climate Change, Sharon A. Robinson, L J. Clarke
Sharon Robinson
Climate change is expected to affect the high latitudes first and most severely, rendering Antarctica one of the most significant baseline environments for the study of global climate change. Despite this, there have been few long-term studies of the response of Antarctic vegetation to climate change. The Windmill Islands region supports some of the most extensive and best developed vegetation on continental Antarctica, with lush, green mossbeds along many of the lakes and melt streams close to Casey station. Over the past 12 years my University of Wollongong colleagues and I have studied the mosses of this region to better …
Chemistry And Metallurgy In The Great Empires, Fathi Habashi
Chemistry And Metallurgy In The Great Empires, Fathi Habashi
Fathi Habashi
It is remarkable that certain countries expand to become great empires then as time goes by they gradually decline while others rise. This book attempts to briefly trace the history of chemistry and metallurgy through the different empires that became at one time great and then faded away. In 272 pages 21.5 x 28 cm, the author outlines the inter-relation of chemistry, metallurgy, mining, and medicine, the idea of the divinity of kings and the formation of nations, and finally the rise and fall of the empires. He then covers the ancient and medieval empires, followed by the empires from …
Science, Technology, And Society, Fathi Habashi
Science, Technology, And Society, Fathi Habashi
Fathi Habashi
Science, technology, and society is a vast and complex question. It is discussed here from five points: social responsibility of scientists, migration and movement of scholars, philanthropy and its role in education and culture, enlightened despots and their influence on science and culture, and finally the social aspects of mining. The book is meant for the general reader but can benefit scientists as well. It is fully illustrated with colored pictures. It is hoped that it will serve as an introduction to this field to the young generation and inspire them to serve society.