A5049266967- Plant Water Relations and Carbon Dynamics
- Coastal wetland ecosystem dynamics
- Plant responses to water stress
- Plant responses to elevated CO2
- Fern and Epiphyte Biology
- Legume Nitrogen Fixing Symbiosis
- Plant Diversity and Evolution
- Soybean genetics and cultivation
- Ecology and Conservation Studies
- Plant Taxonomy and Phylogenetics
- Plant Stress Responses and Tolerance
- Isotope Analysis in Ecology
- Photosynthetic Processes and Mechanisms
- Plant Parasitism and Resistance
- Leaf Properties and Growth Measurement
- Bioenergy crop production and management
- Marine and coastal plant biology
- Plant Pathogens and Fungal Diseases
- Plant nutrient uptake and metabolism
- Plant Reproductive Biology
- Bamboo properties and applications
- Tree-ring climate responses
- Plant and animal studies
- Chemical synthesis and alkaloids
- Biological Control of Invasive Species
National Taiwan University
2011-2023
National Pingtung University of Science and Technology
2010
Academia Sinica
1996-2005
Institute of Botany
1997-1999
University of Utah
1994
University of Maryland, College Park
1991-1993
Responses of photosynthetic gas exchange and chlorophyll (Chl) a fluorescence three wild soybeans, Glycine soja, G. tomentella, tabacina occurring in different habitats Taiwan, to four NaCl treatments, 0S, LS, MS, HS (i.e. 0, 17, 51, 85 mM NaCl) were compared. In soja following exposure treatment for one month, the photon saturated rate (PN), ratio variable maximum (Fv/Fm), quantum yield photosystem 2 (ΦPS2), electron transport (ETR) decreased dramatically. These reductions increased...
ABSTRACT Diurnal heliotropic leaf movements, photosynthetic gas exchange, and the ratio of variable fluorescence to maximum (Fv/Fm) unrestrained horizontally restrained leaves from soybean ( Glycine max cv. Cumberland) plants grown in two different water nitrogen treatments were measured. Leaves low or availability displayed more pronounced diaheliotropism (solar tracking) afternoon a longer period paraheliotropism (light avoiding) at midday relative those well‐watered, high‐nitrogen‐grown...
Abstract Vertical CO 2 profiles (between 0.02 and 14.0 m) were studied in forest canopies of Pinus contorta, Populus tremuloides , a riparian with Acer negundo grandidentatum during two consecutive growing seasons. Profiles, measured continuously 1‐ to 13‐day periods four five stands differing overstorey canopy area index (CAI < 4.5; including leaves, branches stems), well stratified, highest [CO ] just above the floor. Canopy influenced by stand structure (CAI, presence understorey...
We compared the effects of short-term (hours) and long-term (days) exposure to chilling temperatures on photosynthetic gas exchange, leaf characteristics chlorophyll a fluorescence seedlings mangrove species Kandelia candel Druce Avicennia marina (Forsk.) Vierh. Both occur along west coast Taiwan, but K. occurs further north than A. marina. hypothesized that temperature was one major environmental factors limiting northern distribution more sensitive candel. Leaves both showed reductions in...
Leaf photosynthetic rate and leaf characteristics including chlorophyll content, width, mass per area (LMA), stomatal density the dimensions of guard cells were measured in C 4 Miscanthus spp. growing along an altitudinal gradient from 390 to 2700 m central Taiwan. The main objective this study was understand if morphological physiological variation occur leaves plants gradient. Measurements taken during season, May, July September, 1997. Photosynthetic rate, width cell decreased while LMA...
Midday leaf angle, photosynthetic gas exchange, stable carbon isotope ratio ( δ 13 C), and chlorophyll a fluorescence among three wild soybeans, Glycine soja, G . tomentella tabacina, from habitats with different water availability were examined. Plants grown under low had reduced area, electron transport rates, more positive C values, vertical midday angles. The species differed in leaflet orientation, size, photosynthesis responses to availability. differences consistent the of their...
Abstract. Rapid, tropic leaf movements and photo‐synthetic responses of the heliotropic plant, soybean, Glycine max cv. Cumberland, grown under two different nitrogen, three light water treatments were examined. Measurements orientation during midday periods outdoors, reorientation leaflets in response to vertical illumination indoors, revealed a positive, linear relationship between potential cosine angle incidence direct beam excitation light. This was altered by nitrogen availability,...
Summary 1. River food webs rely on two major sources: autochthonous primary production within the river and allochthonous organic matter transferred to river. We characterised consumer communities assessed sources of dominant consumers along a subtropical mountainous (the Lanyang north‐eastern Taiwan) at catchment scale from headwater estuary using natural abundances stable carbon nitrogen isotopes. 2. The downstream transport fine particulate (FPOM) was orders magnitude greater than that...
Abstract Teeth of odontocetes accumulate annual dentinal growth layer groups ( GLG s) that record isotope ratios, which reflect the time their synthesis. Collectively, they provide lifetime records individual feeding patterns from life history traits can be inferred. We subsampled prenatal dentin and postnatal s in Risso's dolphins Grampus griseus) n = 65) stranded or were collected as bycatch Taiwan (1994–2014) analyzed them for δ 15 N 13 C. Age‐specific C values corrected effects calendar...
To gain a better understanding of traits and mechanisms underlying the fast spreading an invasive plant, ＂B. pilosa var. radiate＂, in Taiwan, we compared vegetative reproductive growth this plant with its sympatric congener ＂Bidens bipinnata＂ L., naturalized species. The two species had similar photosaturated photosynthetic rate apparent quantum yield. However, both differed temperature response seed germination, associated life history, biomass allocation pattern. At winter (18°C)...
Abstract Two new cucurbitane triterpenes, (23 E )‐7 β ‐methoxycucurbita‐5,23,25‐trien‐3 ‐ol ( 1 ) and 23,25‐dihydroxy‐5 ,19‐epoxycucurbit‐6‐ene‐3,24‐dione 2 ), a D : C ‐friedooleanane triterpene, 3 α ‐[( )‐feruloyloxy]‐ ‐friedooleana‐7,9(11)‐dien‐29‐oic acid together with two known 4 3‐oxo‐ 5 were isolated from the stems of Momordica charantia. The structures compounds – determined by spectroscopic methods.
Marsilea, an amphibian fern genus (containing ca. 80 species) characterized by their unusual leaves and reproductive structures, is distributed over the five continents. To investigate adaptation traits of three Marsilea species (M. crenata, M. quadrifolia, schelpiana), in different geographic regions, to terrestrial conditions, we compared morphological features, optical properties photosynthetic performance leaflets grown environment. The results showed that had significant differences...
Marsilea quadrifolia, an amphibious fern, has the ability to develop heterophyllous, aerial and submerged leaves. In contrast leaves, leaves have trichomes on both surfaces. To examine if presence of can reflect excess light hence reduce risk being damaged by light, we compared optical properties chlorophyll a fluorescence, in particular maximum PSII photochemical efficiency (Fv/Fm), M. quadrifolia with (intact) those having removed (de-trichomed). Photosynthetic gas exchange measurements...