Results 81 to 90 of about 114,080,730 (297)
American Journal of Botany, EarlyView.Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely +7 more
wiley +1 more source
The photophysiology and primary productivity of phytoplankton within the deep chlorophyll maximum
, 2007 In temperate shelf seas, a deep chlorophyll maximum (DCM) persists within the thermocline during summer stratification. This study explores the significance of primary production (PP) within the DCM and provides a detailed investigation into the ...
Hickman, A.
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Chlorophyll breakdown and chlorophyll catabolites in leaves and fruit [PDF]
Photochemical & Photobiological Sciences, 2008 Chlorophyll metabolism probably is the most visible manifestation of life. Total annual turnover of chlorophyll has been estimated to involve more than 1000 million tons. Surprisingly, chlorophyll catabolism has remained an enigma until less than twenty years ago, when a colorless chlorophyll catabolite from senescent plant leaves was identified and ...
openaire +2 more sources
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT Mayonnaise, a widely consumed oil‐in‐water emulsion, is highly susceptible to lipid oxidation due to its high content of polyunsaturated fatty acids (PUFAs) and the presence of pro‐oxidant factors such as low pH and iron from egg yolk. Over the past three decades, extensive research has focused on understanding oxidation mechanisms, analytical
Sakhi Ghelichi +2 more
wiley +1 more source
Validation of Cochlodinium Polykrikoides Red Tide Detection Using SeaWIFS-Derived Chlorophyll-A Data with NFRDI Red Tide Map in South East Korean Waters [PDF]
, 2017 Annual summer red tides of Cochlodinium polykrikoides have happenned at southern coastal of the South Korea, accounted economic losses of 76.4 billion won in 1995 on fisheries and other economic substantial losses.
Joji Ishizaka +3 more
core +1 more source
Effects of El Niño on the dynamics of Lake Alchichica, central Mexico [PDF]
Geofísica Internacional, 2003 Lake Alchichica is a deep, warm-monomictic lake in Puebla State, central Mexico. Water temperature, dissolved oxygen and chlorophyll a annual concentration patterns are compared under ENSO and non-ENSO conditions.
Alfonso Lugo, Javier Alcocer
doaj
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT In this study, saponification variables were optimized using a face‐centred central composite design‐response surface methodology. The variables included reaction temperature (50°C–120°C), reaction time (30–180 min), KOH concentration (0.5–3 M) and pyrogallol concentration (0–1% w/v).
Milad Kazemi +4 more
wiley +1 more source
Effect of drought stress on yield, proline and chlorophyll contents in three chickpea cultivars [PDF]
, 2010 Drought stress is one of the major abiotic stresses in agriculture worldwide. This study was carried out to investigate the effect of drought stress on proline content, chlorophyll content, photosynthesis and transpiration, stomatal conductance and yield
Siosemardeh, A. +4 more
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Seasonal Fluctuations of Plastochromanol‐8 and α‐Tocopherol Amounts in the Leaves of Cecropia Trees
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT Plastochromanol‐8 (PC‐8) is a homologue of γ‐tocotrienol with a longer side chain (eight instead of three isoprene units) and therefore also a representative of the tocochromanol (vitamin E) group. PC‐8 has been determined in various plants and seeds, with Cecropia sp. leaves showing unusually high levels.
Rosalie Ormos, Jörg Rau, Walter Vetter
wiley +1 more source
Chlorophyll-a patterns during Magellanic penguin breeding at Punta Tombo
, 2019 Organisms in the ocean depend ultimately on phytoplankton, as it is the base of the marine food web. The use of satellite imaging, as indicators of photosynthesis such as chlorophyll-A is often used as an index of primary production in the ocean. Located
Sulc, Anna
core