Results 91 to 100 of about 25,080 (233)

Changes in microphytobenthos fluorescence over a tidal cycle: implications for sampling designs [PDF]

, 2013
Intertidal microphytobenthos (MPB) are important primary producers and provide food for herbivores in soft sediments and on rocky shores. Methods of measuring MPB biomass that do not depend on the time of collection relative to the time of day or tidal ...
A. C. Jackson, A. J. Underwood, AC Jackson, AC Jackson, AJ Underwood, AJ Underwood, AJ Underwood, AJ Underwood, AS Hill, B Helmuth, B Jesus, B Jesus, BST Helmuth, C Heckman, C Honeywill, CM Magalhães, D Campbell, D Hanelt, D-P Hader, E. Maggi, F Roncarati, FE Round, GCJ Underwood, GCJ Underwood, GF Blanchard, GF Blanchard, H Coelho, HL MacIntyre, HL MacIntyre, I Lamontagne, IR Joint, J Kromkamp, J Serôdio, J Serôdio, J Serôdio, JT Easley, K Huppertz, L Suzuky, M Consalvey, M. G. Chapman, MA Saburova, ME Nicotri, MG Chapman, MG Chapman, MJ Dring, MJ Sullivan, ML Yallop, NS Hutchinson, P Falkowski, PM Houpt, R Castenholz, RC Thompson, RC Thompson, RG Perkins, RG Perkins, RJ Murphy, RJ Murphy, RJ Murphy, RJ Murphy, S Bailey, S Golubic, S Nagarkar, SA Cohn, SJ Hawkins, SR Jenkins, T. Tolhurst, TJ Tolhurst, TJ Tolhurst, TJ Tolhurst, WJ Henley, Y Ji   +70 more
core   +1 more source

Heat‐evolved coral photosymbionts exhibit dampened stress responses across distinct physiological contexts

New Phytologist, EarlyView.
Summary Experimental evolution under elevated temperatures has generated heat‐evolved (HE) strains of Symbiodiniaceae that enhance coral bleaching tolerance. However, the biomolecular mechanisms underlying this resilience remain poorly understood. We conducted a laboratory heat‐stress experiment and applied synchrotron‐based Fourier transform infrared (
Bede G. Johnston, Madeline R. Garing, Annaleise R. Klein, Wing Yan Chan, Matthew R. Nitschke, Madeleine J. H. van Oppen   +5 more
wiley   +1 more source

Effects of elevated CO2 and nutrients on the community metabolism of a Cymodocea nodosa bed [PDF]

, 2016
We assessed the combined effects of elevated CO2 and nutrients on the metabolism of a benthic community dominated by the seagrass Cymodocea nodosa (Ucria) Ascherson in a mesocosm experiment. C. nodosa plants and their associated community were exposed to
Alexandre, Ana, Khan, Faisal, Santos, Rui, Ullah, Hadayet   +3 more
core   +1 more source

Cytokinin downregulates Photosystem II photochemistry during prolonged darkness in a phytochrome B‐dependent manner

New Phytologist, EarlyView.
Cytokinin–phyB signaling modulates PSII photochemistry during prolonged darkness. Summary Cytokinins (CKs) delay dark‐induced senescence, but how they tune photosynthetic function in darkness remains unclear. We investigated the effects of classical aromatic CK benzylaminopurine and CK‐derived compound 1‐(2‐methoxyethyl)‐3‐(1,2,3‐thiadiazol‐5‐yl)urea ...
Veronika Kábrtová, Zuzana Kučerová, Ivo Chamrád, René Lenobel, Pavel Roudnický, Jan Skalák, Martin Hudeček, Filip Zavadil Kokáš, Marek Rác, Tereza Vánská, Jaroslav Nisler, Jan Hejátko, Miroslav Strnad, Martina Špundová, Ondřej Plíhal   +14 more
wiley   +1 more source

Diversity of winter photoinhibitory responses: a case study in co-occurring lichens, mosses, herbs and woody plants from subalpine environments [PDF]

, 2017
Winter evergreens living in mountainous areas have to withstand a harsh combination of high light levels and low temperatures in wintertime. In response, evergreens can activate a photoprotective process that consists of the downregulation of ...
Becerril Soto, José María, Fernández Marín, Beatriz, García Plazaola, José Ignacio, Míguez Cano, Fátima   +3 more
core   +2 more sources

Sweet Potato Gene Clusters Control Anthocyanin Biosynthesis and Leaf Morphology

Plant Biotechnology Journal, EarlyView.
ABSTRACT Sweet potato (Ipomoea batatas) exhibits diversity in pigmentation and leaf morphology, yet the genetic architecture and regulatory organisation underlying these traits remain poorly resolved, particularly with respect to organ‐specific control.
Dong An, Tiechen Shen, Shiyu Wu, Yanshen Li, Weijuan Fan, Mengxiao Yan, Yinghui Meng, Xinyi Wang, Ximing Xu, Zunfu Lv, Ling Yuan, Jun Yang, Guoquan Lu, Hongxia Wang   +13 more
wiley   +1 more source

Photoinhibition and recovery after selective short-term exposure to solar radiation of five chlorophyll c-containing marine microalgae

Ciencias Marinas, 2002
The differential sensitivity of five chlorophyll c-containing marine microalgae to different components of solar radiation, e.g. photosynthetic active radiation (PAR), ultraviolet-A (UV-A) and ultraviolet-B (UV-B), was investigated in an exclusion ...
O Montero, C Sobrino, G Parés, LM Lubián   +3 more
doaj   +1 more source

Thermal Safety Margins and Peak Leaf Temperatures Predict Vulnerability of Diverse Plant Species to an Experimental Heatwave

Plant, Cell &Environment, EarlyView.
ABSTRACT Extreme heat can push plants beyond their thermal safety margin (TSM) if maximum leaf temperature (Tleaf_max) exceeds leaf critical temperature (Tcrit). The TSM is potentially useful for assessing heat vulnerability across species but needs further validation, so we exposed 50 tree/shrub species in controlled glasshouses to a 6‐day heatwave ...
Diana Cox, Renée M. Marchin, David S. Ellsworth, Agnieszka Wujeska‐Klause, Alessandro Ossola, Kristine Y. Crous, Michelle R. Leishman, Paul D. Rymer, Mark G. Tjoelker   +8 more
wiley   +1 more source

Effect of solar and artificial UV radiation on photosynthetic performance and carbonic anhydrase activity in intertidal macroalgae from southern Spain

Ciencias Marinas, 2009
The effect of UV radiation on photosynthetic rate and carbon uptake, estimated as carbonic anhydrase activity, was studied by incubating intertidal algae, Fucus spiralis (Phaeophyta) and Ulva olivascens (Chlorophyta), under both artificial and solar ...
B Viñegla, F López-Figueroa
doaj   +1 more source

Vestigial Plastids in Parasitic Plants: Evolutionary Remnants or Adaptive Innovations?

Plant, Cell &Environment, EarlyView.
ABSTRACT Throughout the evolutionary history of plants, chloroplasts originating from a cyanobacterial endosymbiosis have undergone remarkable adaptation and specialization, giving rise to a multitude of plastid types. The evolution toward parasitism in plants represents a particularly extreme case of such specialization.
Laia Jené, Sergi Munné‐Bosch
wiley   +1 more source