REPOSITORIO
INSTITUCIONAL
    • español (España)
    • English
  • English 
    • español (España)
    • English
  • Login
View Item 
  •   DSpace Home
  • Escuelas, Departamentos y Centros
  • Escuela de Ciencias Agrícolas y Veterinarias
  • Artículos científicos
  • View Item
  •   DSpace Home
  • Escuelas, Departamentos y Centros
  • Escuela de Ciencias Agrícolas y Veterinarias
  • Artículos científicos
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Seasonal Photoacclimation and Vulnerability Patterns in the Brown Macroalga Lessonia spicata (Ochrophyta)

Thumbnail
View/Open
Artículo de Revista: Seasonal Photoacclimation and Vulnerability Patterns in the Brown Macroalga Lessonia spicata (Ochrophyta) (3.202Mb)
Date
2020-12-23
Author
Zúñiga, Antonio
A. Sáez, Claudio
Trabal, Andrés
L. Figueroa, Félix
Pardo, Diego
Navarrete, Camilo
Rodríguez-Rojas, Fernanda
Moenne, Fabiola
Celis-Plá, Paula S. M.
Statistics
Abstract
Fluctuations in solar radiation are one of the key factors affecting productivity and survival in habitat forming coastal macroalgae, in this regard, photoacclimation has a direct impact on the vulnerability and the capacity of seaweed to withstand, for instance, radiation excess. Here, we study ecophysiological responses through photosynthetic activity measurements under time-dependent (one year) fluctuations in solar radiation in the brown macroalga L. spicata. The responses presented seasonal patterns, with an increase in photosynthetic capacity during summer, expressed in greater maximal electron transport rate (ETRmax) and diminished thermal dissipation (NPQmax). Moreover, we studied photoprotective compounds (phenolic compounds) and total antioxidant capacity, which demonstrated an increase during periods of high solar radiation. In addition, content of photosynthetic pigment (Chla, Chlc and Carotenoids) increased under greater solar irradiance. The L. spicata can accumulate as reservoir photoprotective and antioxidant substances to withstand periods of high solar irradiance. All ecophysiological and biochemical responses in L. spicata indicate high photoacclimation and low vulnerability in the species, especially during with greater levels of solar irradiance.
URI
https://hdl.handle.net/20.500.12536/1224
Collections
  • Artículos científicos
Metadata
Show full item record
UVM - Universidad Viña del Mar
Enlaces de Interés
  • Aula Virtual
  • Calendario Académico
  • Certificados
  • Contacto
  • Consulta alumno derecho
  • COVID-19
  • CREA · Biblioteca
  • Ética en Línea
  • Portal de Denuncias
  • Repositorio
  • Trabaja con Nosotros
  • UVM en Medios
Fono Admisión

800 37 4100

FONO ALUMNOS (CSE)

32 2462510 (Recreo)

32 2462637 (Miraflores)

32 2462693 (Rodelillo)

Universidad Viña del Mar

Agua Santa 7055, Viña del Mar

  • Políticas de Privacidad
Nuestras Redes Sociales
Soy UVM
  • App Store
  • Google Play

Agua Santa 7055, sector Rodelillo, Viña del Mar.

Implementado por
OpenGeek
 

Browse

Navigate on all siteCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsItem TypesThis CollectionBy Issue DateAuthorsTitlesSubjectsItem Types

My Account

Login

Statistics

View Usage Statistics
UVM - Universidad Viña del Mar
Enlaces de Interés
  • Aula Virtual
  • Calendario Académico
  • Certificados
  • Contacto
  • Consulta alumno derecho
  • COVID-19
  • CREA · Biblioteca
  • Ética en Línea
  • Portal de Denuncias
  • Repositorio
  • Trabaja con Nosotros
  • UVM en Medios
Fono Admisión

800 37 4100

FONO ALUMNOS (CSE)

32 2462510 (Recreo)

32 2462637 (Miraflores)

32 2462693 (Rodelillo)

Universidad Viña del Mar

Agua Santa 7055, Viña del Mar

  • Políticas de Privacidad
Nuestras Redes Sociales
Soy UVM
  • App Store
  • Google Play

Agua Santa 7055, sector Rodelillo, Viña del Mar.

Implementado por
OpenGeek