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551.
The photosynthetic adaptive features of non-dormant seeds in Posidonia oceanica were studied in order to evaluate the effects of light on germination success. Transmission electron micrographs showed the
presence of chloroplasts in the epidermal cells, close to the nucleus at the periphery of the cytoplasm. The well-developed
thylakoid membranes and the presence of starch granules indicated that the chloroplasts were photosynthetically active. The
relationship between photosynthesis versus irradiance in P. oceanica seeds incubated at 15 and 21°C was analysed. The net photosynthesis in the non-dormant seed of P. oceanica was positive and compensated its respiration demand (90 μmol quanta m−2 s−1) at both temperatures. Net photosynthesis was negative at the other irradiance values. To test the effects of light on germination
success, seeds were placed both in dark and light conditions. Germination success was significantly higher in light rather
than in dark condition. The characteristics observed in the photosynthesis in P. oceanica seed could be a mechanism to guarantee seedling survival in temperate waters, demonstrating though the specialized nature
of this species. 相似文献
552.
Alcázar P García-Mozo H Trigo Mdel M Ruiz L González-Minero FJ Hidalgo P Díaz de la Guardia C Galán C 《Journal of environmental monitoring : JEM》2011,13(9):2502-2510
Platanus is a major cause of pollen allergy in many Spanish cities. The present paper reports an analysis of Platanus pollen season throughout the Andalusia region (southern Spain), which has among the highest pollen counts and the highest incidence of Platanus-related allergies in Europe. The main aim was to analyze pollen season trends from 1992 to 2010 in Andalusia; models were also constructed to forecast the start of the season. Daily pollen counts were recorded using Hirst-type volumetric spore-traps. Pollen season start-dates were very similar at all sites, usually occurring in March. The pollen season was delayed over the study period. The Pollen-season duration and Pollen index generally increased throughout the study period. The starting date for temperature accumulation was around the 10th February, although the threshold temperatures varied by site. The regional model for Andalusia failed to provide sufficiently accurate results compared with sub-regional or local models. For modeling purposes, three sub-regions are recommended: Inland, East Coast and West Coast. 相似文献
553.
554.
Zacarías Silvia Mercedes Manassero Agustina Pirola Silvana Alfano Orlando Mario Satuf María Lucila 《Environmental science and pollution research international》2021,28(19):23859-23867
Environmental Science and Pollution Research - Since COVID-19 pandemic, indoor air quality control has become a priority, and the development of air purification devices effective for disinfecting... 相似文献
555.
Karoui Sarra Ben Arfi Rim Fernández-Sanjurjo María J. Nuñez-Delgado Avelino Ghorbal Achraf Álvarez-Rodríguez Esperanza 《Environmental science and pollution research international》2021,28(34):46431-46447
Environmental Science and Pollution Research - The first aim of this study was to synthesize and characterize reed-based-beads (BBR), an enhanced adsorbent from Tunisian reed. The second purpose... 相似文献
556.
Schoffer Jorge Tomás Antilén Mónica Neaman Alexander Díaz María Francisca de la Fuente Luz María Urdiales Cristian Ginocchio Rosanna 《Environmental science and pollution research international》2021,28(43):60913-60922
Environmental Science and Pollution Research - This study assessed the capacity of leaf litters to adsorb copper ions applied as a copper-based pesticide. Leaf litters of two fruit tree species... 相似文献
557.
Chávez-Sánchez María-Cristina Abad-Rosales Selene Lozano-Olvera Rodolfo Montoya-Rodríguez Leobardo Franco-Nava Miguel Ángel Mejía-Ruíz Claudio Humberto Pestryakov Alexey Bogdanchikova Nina 《Environmental science and pollution research international》2021,28(7):8224-8234
Environmental Science and Pollution Research - The objective of this study was to evaluate the histopathological alterations in juvenile Penaeus vannamei caused by silver nanoparticles (AgNPs) for... 相似文献
558.
Gálvez-Iriqui Alma Carolina García-Romo Joel Said Cortez-Rocha Mario Onofre Burgos-Hernández Armando Burboa-Zazueta María Guadalupe Luque-Alcaraz Ana Guadalupe Calderón-Santoyo Montserrat Argüelles-Monal Waldo Manuel Plascencia-Jatomea Maribel 《Environmental science and pollution research international》2021,28(3):3051-3065
Environmental Science and Pollution Research - Chitosan (CS) nanosystems have potential applications for the control of microorganisms in the medical, environmental, and agrifood fields. In vivo... 相似文献
559.
López Gabriela Riviello Martinez Leila Marina Freyre Laura Freire María Cecilia Vladimirsky Sara Rabossi Alejandro Cisterna Daniel Marcelo 《Food and environmental virology》2021,13(1):64-73
Food and Environmental Virology - Cosaviruses (CoSV) and Saffold cardiovirus (SAFV) are novel members of the Picornaviridae family. The Matanza-Riachuelo river basin covers a total area of 2200 km2... 相似文献
560.
Mar??a Ornela Beltrame Silvia Graciela De Marco Jorge Eduardo Marcovecchio 《Environmental monitoring and assessment》2011,172(1-4):379-389
This paper presents the concentrations of total copper, lead, cadmium, and zinc in hepatopancreas of the burrowing crab Neohelice granulata from the Samboromb??n Bay (La Plata River estuary) and the Mar Chiquita coastal lagoon, Argentina. The highest accumulation of lead was observed in Mar Chiquita samples, whereas copper, zinc, and cadmium concentrations were higher in those from Samboromb??n Bay. Marked temporal and geographic availability differences were observed, while sexual differences only were observed for zinc. Finally, the validity of using this species as bioindicator of heavy-metal pollution within the assessed estuarine ecosystems is discussed. 相似文献