FN Archimer Export Format
PT J
TI Short-term effects of increased CO2, nitrate and temperature on photosynthetic activity in Ulva rigida (Chlorophyta) estimated by different pulse amplitude modulated fluorometers and oxygen evolution
BT 
AF Figueroa, F L
   Bonomi-Barufi, J
   Celis-Plá, P S M
   Nitschke, U
   Arenas, F
   Connan, S
   Abreu, M H
   Malta, E-J
   Conde-Álvarez, R
   Chow, F
   Mata, M T
   Meyerhoff, O
   Robledo, D
   Stengel, D B
AS 1:1;2:2;3:3,4;4:5;5:6;6:7,8;7:9;8:10;9:1;10:11;11:12;12:13;13:14;14:5;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;
C1 Malaga University. Institute of Blue Biotechnology and Development (IBYDA), Ecology Department, Faculty of Sciences, Campus Universitario de Teatinos s/n, Malaga, Spain
   Botany Departament, Federal University of Santa Catarina. Campus Trindade s/n, Florianópolis, SC, Brazil
   Laboratory of Costal Environmental Research,Center of Advances Studies. University of Playa Ancha. Traslaviña, Viña del Mar, Chile
   HUB AMBIENTAL UPLA, Vicerrectoría de Investigación, Postgrado e Innovación, Universidad de Playa Ancha, Valparaíso, Chile
   Botany and Plant Science, School of Natural Sciences, Ryan Institute for Environmental, Marine and Energy Research, National University of Ireland Galway, Galway, Ireland
   CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas, Porto, Portugal
   CNRS, GEPEA, UMR6144, Boulevard de l’Université, CRTT BP 406, 44602 Saint Nazaire Cedex, France
   Univ Brest, CNRS, IRD, Ifremer, LEMAR, Plouzane, France
   ALGAplus Ltd – R&D Department, Rua António Castilho, Angeja, Portugal
   Centro IFAPA Agua del Pino, Crtra. El Rómpido – Punta Umbría, Cartaya (Huelva), Spain
   Department of Botany, University of São Paulo, Rua do Matão, São Paulo, SP, Brazil
   Centro de Bioinnovación Antofagasta (CBIA), Faculty of Marine Sciences and Biological Resources, Antofagasta University, Antofagasta, Chile
   Heinz Walz GmbH Eichenring, Effeltrich, Germany
   CIVESTAV-IPN, Unidad Mérida Km6 Antigua Carretera a Progreso Apartado Postal, Cordemex, Mérida, Yucatán, México
C2 UNIV MALAGA, SPAIN
   UNIV FED SANTA CATARINA, BRAZIL
   UNIV PLAYA ANCHA, CHILE
   UNIV PLAYA ANCHA, CHILE
   NATL UNIV IRELAND, IRELAND
   CIIMAR, PORTUGAL
   CNRS, FRANCE
   UBO, FRANCE
   ALGAPLUS LTD, PORTUGAL
   IFAPA, SPAIN
   UNIV SAO PAULO, BRAZIL
   UNIV ANTOFAGASTA, CHILE
   HEINZ WALZ GMBH, GERMANY
   CIVESTAV-IPN, MEXICO
UM LEMAR
IN WOS Cotutelle UMR
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 7.378
TC 15
UR https://archimer.ifremer.fr/doc/00655/76682/78032.pdf
LA English
DT Article
DE ;Acidification;climate change;electron transport rates;in vivo chlorophyll a fluorescence;nitrate;photosystem I and II;temperature
AB Short-term effects of pCO2 (700 – 380 ppm; HC-LC) and nitrate content (50-5 βM; HN-LC) on photosynthesis, estimated by different pulse amplitude modulated (PAMs) fluorometers and by oxygen evolution, were investigated in Ulva rigida (Chlorophyta) under solar radiation (ex-situ) and in the laboratory under artificial light (in-situ). After 6-days of incubation at ambient temperature (AT), algae were subjected to a 4 oC-temperature increase (AT+4oC) for 3 d. Both in-situ and ex-situ, maximal electron transport rate (ETRmax) and in situ gross photosynthesis (GP) measured by O2 evolution presented the highest values under HCHN, and the lowest under HCLN, across all measuring systems. Maximal quantum yield (Fv/Fm), and ETRmax of PSII (ETR(II)max) and of PSI (ETR(I)max), decreased under HCLN under AT+4°C. Ex situ ETR was higher than in situ ETR. At noon, Fv/Fm decreased (indicating photoinhibition), whereas ETR(II)max and maximal non-photochemical quenching (NPQmax) increased. ETR(II)max decreased under AT+4oC in contrast to Fv/Fm, photosynthetic efficiency (αETR) and saturated irradiance (EK). Thus, U. rigida exhibited a decrease in photosynthetic production under acidification, LN levels and AT+4oC. These results emphasize the importance of studying the interactive effects between environmental parameters using in-situ vs. ex-situ conditions when aiming to evaluate the impact of global change on marine macroalgae. 
PY 2021
PD FEB
SO Journal Of Experimental Botany
SN 0022-0957
PU Oxford University Press (OUP)
VL 72
IS 2
UT 000648886400025
BP 491
EP 509
DI 10.1093/jxb/eraa473
ID 76682
ER

EF