Article
Plant Sciences
Michela Cecchin, Matteo Paloschi, Giovanni Busnardo, Stefano Cazzaniga, Stephan Cuine, Yonghua Li-Beisson, Lutz Wobbe, Matteo Ballottari
Summary: The research investigated the physiological and metabolic responses of two promising algae species, Chlorella sorokiniana and Chlorella vulgaris, under high or low CO2 availability conditions, revealing diverse acclimation strategies among green microalgae and suggesting new biotechnological strategies to boost CO2 fixation. High CO2 availability increased biomass accumulation and led to different responses in lipid and protein accumulation in the two algae species. Adaptation mechanisms to cope with fluctuating inorganic carbon supply were found to be species-specific, indicating potential for enhancing CO2 fixation.
PLANT CELL AND ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Bruna. R. R. Winck, Juliette M. G. Bloor, Katja Klumpp
Summary: Plant-atmosphere exchange fluxes of CO2 measured with the Eddy covariance method are important for assessing ecosystem carbon budgets. This study presents eddy flux measurements for a managed upland grassland in France over a 20-year period. Pre-processing and post-processing approaches were used to overcome data gaps in the long-term datasets. The resulting datasets can be used for studying the impact of climate change on grassland ecosystems and for model evaluation and validation in carbon-cycle research.
Article
Engineering, Environmental
Marcello Laganaro, Simon Bahrndorff, Niels Thomas Eriksen
Summary: The quality of substrate affects the metabolism and feed conversion of black soldier fly larvae, with higher quality substrate leading to faster and larger growth. Specific growth rates and feed assimilation rates are significantly influenced by different substrate mixtures.
Article
Multidisciplinary Sciences
Constantin M. Zohner, Leila Mirzagholi, Susanne S. Renner, Lidong Mo, Dominic Rebindaine, Raymo Bucher, Daniel Palous, Yann Vitasse, Yongshuo H. Fu, Benjamin D. Stocker, Thomas W. Crowther
Summary: Climate change is altering the growing seasons of plants, affecting species performance and biogeochemical cycles. The timing of autumn leaf senescence in Northern Hemisphere forests is uncertain, but early-season and late-season warming have opposite effects on leaf senescence, with a reversal occurring after the summer solstice. Increased temperature and vegetation activity before the solstice led to an earlier senescence onset, while warmer post-solstice temperatures extended senescence duration. These changes in leaf senescence can impact growing-season length and forest productivity in the Northern Hemisphere.
Article
Environmental Sciences
Haruka Takagi, Katsunori Kimoto, Tetsuichi Fujiki
Summary: Photosymbiosis is a key feature in planktonic foraminifera, where a single host can have thousands of symbiont cells, making photosynthesis a hotspot for primary production. Understanding the photosynthetic activities of symbionts is crucial for interpreting geochemical proxies recorded in foraminiferal tests. The relationship between the fluorescence-based photosynthetic rate and carbon assimilation rate was studied in two species, showing a significant positive correlation but different regression slopes. The high apparent electron requirement for carbon assimilation observed may be due to the use of respiratory carbon.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Harleen Gujral, Archana Sinhmar, Manju Nehra, Vikash Nain, Rahul Thory, Ashok Kumar Pathera, Prafull Chavan
Summary: The incorporation of starch nanoparticles (SNPs) into film formulation led to improvements in film properties, including increased swelling power and solubility, decreased water vapor transmission rate, enhanced burst strength, increased film thickness, and enhanced biodegradability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Plant Sciences
Dongjie Xia, Xiaoxia An, Ignacio F. Lopez, Chunhui Ma, Qianbing Zhang
Summary: This study evaluated the effects of arbuscular mycorrhizal fungi inoculation on the growth and photosynthetic performance of alfalfa. The results showed that mixed inoculation improved the photosynthetic efficiency and dry matter yield of alfalfa. The phosphorus application level affected the intercellular CO2 concentration of alfalfa, while other indicators showed an opposite trend.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Engineering, Environmental
Nicolai Sundgaard Bekker, Soren Heidelbach, Sofie Zacho Vestergaard, Morten Eneberg Nielsen, Marie Riisgaard-Jensen, Emil Juel Zeuner, Simon Bahrndorff, Niels Thomas Eriksen
Summary: The substrate moisture content plays an important role in the growth and metabolic performance of black soldier fly larvae. Larvae developed into prepupae only at 45-75% moisture content, with optimal growth observed at 45-75% moisture content. Differences in larvae performance were likely associated with co-occurring microbial activities.
Article
Agriculture, Dairy & Animal Science
Nishchal K. Sharma, Zhibin Ban, Hank L. Classen, Huaming Yang, Xiaogang Yan, Mingan Choct, Shu-Biao Wu
Summary: The presence of slowly digested pea starch in broiler diets may increase net energy and the efficiency of energy utilization in broilers.
Article
Multidisciplinary Sciences
Auke M. van der Woude, Wouter Peters, Emilie Joetzjer, Sebastien Lafont, Gerbrand Koren, Philippe Ciais, Michel Ramonet, Yidi Xu, Ana Bastos, Santiago Botia, Stephen Sitch, Remco de Kok, Tobias Kneuer, Dagmar Kubistin, Adrien Jacotot, Benjamin Loubet, Pedro-Henrique Herig-Coimbra, Denis Loustau, Ingrid T. Luijkx
Summary: The year 2022 experienced record-breaking temperatures in Europe, resulting in severe summer droughts that affected 30% of the continent. Observations showed a reduction in biospheric carbon uptake in the drought-affected areas, with some regions in France even experiencing carbon release by forests. However, a warm autumn partially compensated for the decreased carbon uptake caused by the drought.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Katharyn A. Duffy, Christopher R. Schwalm, Vickery L. Arcus, George W. Koch, Liyin L. Liang, Louis A. Schipper
Summary: The temperature dependence of global photosynthesis and respiration influences the strength of land carbon sink, with the average temperature of the warmest quarter exceeding the thermal maximum for photosynthesis over the past decade, leading to a potential halving of land sink strength in the future.
Article
Plant Sciences
Viridiana Silva-Perez, Arun S. K. Shunmugam, Shiwangni Rao, C. Mariano Cossani, Abeya Temesgen Tefera, Glenn J. Fitzgerald, Roger Armstrong, Garry M. Rosewarne
Summary: The seed yield in lentils has increased by 1.1% per year in Australia over the past 27 years. Changes in plant traits, such as increased height and leaf size with reduced number of branches, have occurred through breeding. Increased light interception and physiological changes, such as higher CO2 assimilation rate and lower canopy temperature at high temperature, are associated with improved yield in recently released varieties.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Environmental Sciences
Jing-Jing Zhou, Ya-Hao Zhang, Ze-Min Han, Xiao-Yang Liu, Yong-Feng Jian, Chun-Gen Hu, Yuan-Yong Dian
Summary: The study demonstrated that hyperspectral reflectance can accurately detect water stress in fruit trees and assess leaf photosynthetic traits early on, with machine-learning algorithms like random forest showing high predictive power for photosynthetic parameters. This technology has great potential for monitoring water stress and increasing yields in large-scale orchards.
Article
Microbiology
He Li, Kunshan Gao
Summary: The effects of changed levels of dissolved O-2 and CO2 on marine primary producers were investigated. The results showed that reduced O-2 levels decreased dark respiration and increased net photosynthetic rate and N-2 fixation rate. However, changed levels of O-2 and CO2 did not significantly affect the specific growth rate of the primary producers.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Plant Sciences
Rebeca Rivas, Mauro G. Santos
Summary: The leaf anatomical and structural traits of Calotropis procera were found to vary significantly under salt stress conditions, including stomatal density, mesophyll thickness, trichome density, and epidermal thickness. Despite reduced stomatal conductance, photosynthetic rate was not immediately decreased, thanks to the anatomical and structural features of new leaves that attenuated the effects of stomatal limitation and maintained water status. C. procera was able to maintain photosynthetic metabolism even with high leaf Na+ concentration, without damaging the photosynthetic apparatus.
THEORETICAL AND EXPERIMENTAL PLANT PHYSIOLOGY
(2022)
