A5103248578- Plant responses to elevated CO2
- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Plant Parasitism and Resistance
- Climate change impacts on agriculture
- Climate Change and Health Impacts
- Atmospheric Ozone and Climate
- Allergic Rhinitis and Sensitization
- Light effects on plants
- Climate variability and models
- Soil Carbon and Nitrogen Dynamics
- Plant and animal studies
- Agriculture Sustainability and Environmental Impact
- Plant Stress Responses and Tolerance
- Air Quality and Health Impacts
- Indoor Air Quality and Microbial Exposure
- Fire effects on ecosystems
- Atmospheric and Environmental Gas Dynamics
- Weed Control and Herbicide Applications
- Rangeland and Wildlife Management
- Greenhouse Technology and Climate Control
- Insect and Pesticide Research
- Ecology and Vegetation Dynamics Studies
- Lichen and fungal ecology
- Rice Cultivation and Yield Improvement
Columbia University
2019-2024
Columbia University Irving Medical Center
2024
New York Proton Center
2023
American Lung Association
2021
Union Theological Seminary
2021
American Public Health Association
2021
Agricultural Research Service
2011-2020
Cropping Systems Research Laboratory
2017-2020
United States Department of Agriculture
2008-2019
Beltsville Agricultural Research Center
1994-2010
Changes in temperature, CO 2 , and precipitation under the scenarios of climate change for next 30 yr present a challenge to crop production. This review focuses on impact 2, ozone agronomic crops implications Understanding these agricultural is critical developing cropping systems resilient stresses induced by change. There variation among their response changes and, with regional differences predicted climate, situation created which responses will be further complicated. For example,...
Rice, a staple food for more than half of the world's population, is grown in >100 countries with 90% total global production from Asia. Although there are 110,000 cultivated varieties rice that vary quality and nutritional content, after post-harvest processing, can be categorized as either white or brown. Regional cultural preferences well need stability during storage transport final determinants market availability consumption. In addition to calories, good source magnesium, phosphorus,...
Rising CO 2 levels may induce nutritional deficits (protein, minerals, and vitamins) in the highest rice-consuming countries.
BackgroundIncreasing atmospheric concentrations of carbon dioxide (CO2) affect global nutrition via effects on agricultural productivity and nutrient content food crops. We combined these with economic projections to estimate net changes in availability between 2010 2050.MethodsIn this modelling study, we used the International Model for Policy Analysis Agricultural Commodities Trade project per capita protein, iron, zinc 2050. estimated individual commodities model production, trade,...
ABSTRACT Despite mounting evidence showing that C 4 plants can accumulate more biomass at elevated CO 2 partial pressure (p(CO )), the underlying mechanisms of this response are still largely unclear. In paper, we review current state knowledge regarding to p(CO ) and discuss likely mechanisms. We identify two main routes through which stimulate growth both well‐watered water‐stressed plants. First, enhanced leaf assimilation rates due increased intercellular ). Second, reduced stomatal...
Sixteen rice ( Oryza sativa L.) cultivars from 7 different geographical regions were grown in greenhouses at the Univ. of Maryland with and without supplemental ultraviolet‐B (UV‐B) radiation to determine alterations biomass, morphology maximum photosynthesis that would be anticipated potential reductions stratospheric ozone column. A wide range UV‐B effects observed, Philippines cultivar Carreon (5993) Sri Lankan Kurkaruppan (15449) showing greatest decrease increase, respectively, total...
Although the impact of increasing atmospheric carbon dioxide concentration ([CO2]) on production common ragweed (Ambrosia artemisiifolia L.) pollen has been examined in both indoor and outdoor experiments, relationship between allergen expression [CO2] is not known. An enzyme-linked immunosorbent assay (ELISA) was used to quantify Amb a 1, ragweed's major allergen, protein extracted from A. grown at different values previous experiment. The concentrations approximated pre-industrial...
Wheat (Triticum aestivum L. cv Bannock), rice (Oryza sativa IR-36), and soybean (Glycine max [L.] Merr Essex) were grown in a factorial greenhouse experiment to determine if CO2-induced increases photosynthesis, biomass, yield are modified by ultraviolet (UV)-B radiation corresponding stratospheric ozone depletion. The experimental conditions simulated were: (a) an increase CO2 concentration from 350 650 microliters per liter; (b) UV-B 10% depletion at the equator; (c) b combination. Seed...
Abstract Climate change affects all segments of the agricultural enterprise, and there is mounting evidence that continuing warming trend with shifting seasonality intensity in precipitation will increase vulnerability systems. Agricultural a complex system within USA encompassing large number crops livestock systems, development indicators to provide signal impact climate on these different systems would be beneficial strategies for effective adaptation practices. A series were assembled...
BackgroundAlthough the effect of elevated carbon dioxide (CO2) concentration on pollen production has been established in some plant species, impacts fungal sporulation and antigen have not elucidated.ObjectiveOur purpose was to examine effects rising atmospheric CO2 concentrations quantity quality spores produced timothy (Phleum pratense) leaves.MethodsTimothy plants were grown at four (300, 400, 500, 600 μmol/mol). Leaves used as growth substrate for Alternaria alternata Cladosporium...
Climate change may both exacerbate the vulnerabilities and open up new opportunities for farming in Northeastern USA. Among are double-cropping crop options that come with warmer temperatures a longer frost-free period. However, prolonged periods of spring rains recent years have delayed planting offset potentially beneficial Water management will be serious challenge Northeast farmers future, projections increased frequency heavy rainfall events, as well more frequent summer water deficits...
At present, there is substantive evidence that the nutritional content of agriculturally important food crops will decrease in response to rising levels atmospheric carbon dioxide, Ca However, whether Ca-induced declines quality are also occurring for pollinator sources unknown. Flowering late season, goldenrod (Solidago spp.) pollen a widely available autumnal source commonly acknowledged by apiarists be essential native bee (e.g. Bombus and honeybee (Apis mellifera) health winter survival....
Seeds from four plant pairs collected contrasting elevations in Hawaii were grown greenhouses at the University of Maryland UV‐B radiation levels that approximated a 20% and 40% stratospheric ozone depletion anticipated sea level Maui. In general, increases resulted earlier reproductive effort, increased dark respiration maintenance relative water content (RWC), photosynthesis, apparent quantum efficiency (AQE) plants higher where natural is already high. contrast, low elevational ranges...
Interest in the potential consequences of stratospheric ozone depletion has led to numerous studies that have evaluated effects ultraviolet‐B (UV‐B) radiation on plant growth and productivity. However, few been conducted plants from natural ecosystems. Differences solar UV‐B along latitudinal or elevational gradients may resulted diverse habitats developing contrasting sensitivities radiation. In this study, seeds were collected a 3,000‐m gradient Hawaii then germinated grown an unshaded...
Contact with poison ivy (Toxicodendron radicans) is one of the most widely reported ailments at centers in United States, and this plant has been introduced throughout world, where it occurs other allergenic members cashew family (Anacardiaceae). Approximately 80% humans develop dermatitis upon exposure to carbon-based active compound, urushiol. It not known how might respond increasing concentrations atmospheric carbon dioxide (CO(2)), but previous work done controlled growth chambers shows...