Article
Biotechnology & Applied Microbiology
Jason Hupp, Johnathan I. E. McCoy, Allen J. Millgan, Graham Peers
Summary: Measurements of cellular carbon assimilation and chlorophyll a fluorescence are crucial for assessing the physiological capacity of algae and cyanobacteria. A novel instrument that synchronously measures CO2 exchange and chlorophyll fluorescence helps researchers quickly evaluate the photosynthetic capabilities of microalgal strains under varying light conditions. The study demonstrates the diverse responses of different algal strains to light exposure.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Agronomy
Dongsheng Zhang, Ali Li, Shu Kee Lam, Ping Li, Yuzheng Zong, Zhiqiang Gao, Xingyu Hao
Summary: Elevated CO2 could compensate for the negative effect of drought on leaf area and aboveground biomass of broomcorn millet, attributed to the direct stimulation in photosynthesis due to increased carbon uptake. Elevated CO2 significantly enhanced water-use efficiency of broomcorn millet, especially under drought condition.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Plant Sciences
Ahsan Ayyaz, Yingying Zhou, Iram Batool, Fakhir Hannan, Qian Huang, Kangni Zhang, Khurram Shahzad, Yongqi Sun, Muhammad Ahsan Farooq, Weijun Zhou
Summary: This study found that foliar application of ABA and Ca-NPs can significantly alleviate drought stress in rapeseed, improving plant nutrition and photosynthesis, and positively affecting transcription factors, ROS homeostasis genes, and photosynthetic protein expression.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Agronomy
Paulina A. Rajewicz, Chao Zhang, Jon Atherton, Shari Van Wittenberghe, Anu Riikonen, Troy Magney, Beatriz Fernandez-Marin, Jose Ignacio Garcia Plazaola, Albert Porcar-Castell
Summary: Chlorophyll fluorescence can be used as a proxy for photosynthesis in boreal forests. This study measured the spectral chlorophyll fluorescence in leaves of three dominant evergreen species in the boreal ecosystem and analyzed the correlations with other traits to understand the spatial and temporal variation in chlorophyll fluorescence. The findings suggest that the diversity of species and light environments within an ecosystem generate baseline variation in leaf spectral chlorophyll fluorescence and contrasting seasonal photosynthetic acclimation patterns.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Green & Sustainable Science & Technology
Susana Constenla-Villoslada, Yanyan Liu, Jiaming Wen, Ying Sun, Shun Chonabayashi
Summary: Anthropogenic land degradation and climate change-induced weather shocks pose a threat to rural livelihoods in developing economies. The Sustainable Land Management Project in Ethiopia has shown positive impacts in restoring land productivity and increasing resilience to weather shocks. Remote sensing technologies can be used to assess the effectiveness of ecosystem restoration programs.
NATURE SUSTAINABILITY
(2022)
Article
Biodiversity Conservation
Zhou-Kang Li, Xue-Wei Gong, Jin-Long Wang, Yu-Dong Chen, Fei-Yi Liu, Han-Peng Li, Guang-Hui Lue
Summary: This study aimed to explore the physiological responses of Calligonum mongolicum to atmospheric water uptake, specifically focusing on the effects of foliar water uptake on shoot water status and photosynthesis. The results showed that C. mongolicum is capable of foliar water uptake, and the absorbed water can be transported downward through the xylem, improving branch water status and photosynthetic capacity. These findings provide a new perspective for understanding the drought survival mechanism of plants in arid environments.
ECOLOGICAL INDICATORS
(2023)
Article
Plant Sciences
Jin Guan, Ke Teng, Yuesen Yue, Yidi Guo, Lingyun Liu, Shuxia Yin, Liebao Han
Summary: The ZjNOL gene in the warm-season turfgrass Zoysia japonica was found to be highly expressed in senescent leaves. ZjNOL accelerates leaf senescence by promoting the accumulation of abscisic acid and carbohydrates, as well as causing excessive accumulation of reactive oxygen species and oxidative stress. Additionally, ZjNOL inhibits photosynthetic efficiency by damaging the oxygen-evolving complex. These findings highlight the important role of ZjNOL in chlorophyll degradation and senescence, making it a valuable candidate gene for genome editing to enhance the green period and photosynthesis efficiency of Z. japonica germplasm.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Environmental Sciences
Xingfan Li, Jiyu Du, Baiquan Song, Xi Zhang, Muhammad Riaz
Summary: This study simulated the effects of Fomesafen drift deposition on sugar beet and found that a high dose of Fomesafen inhibited sugar beet growth and damaged the photosynthetic system, increasing malondialdehyde content and affecting the activity of peroxidase in leaves.
Article
Agronomy
Xiaoyun Huang, Hongxing Chen, Hui Chen, Chengwu Fan, Yueying Tai, Xiaoran Chen, Wang Zhang, Tengbing He, Zhenran Gao
Summary: The temporal and spatial heterogeneity of chlorophyll content and fluorescence in rice canopy leaves under different Cd stress concentrations was explored in this study. The responses of relative chlorophyll content (SPAD) and chlorophyll fluorescence (ChlF) parameters to Cd stress in different growth stages were analyzed. It was found that lower leaves had higher SPAD values in the tillering stage, while upper leaves had higher SPAD values in the heading and filling stages. Certain ChlF parameters were more sensitive to Cd stress than others.
Article
Plant Sciences
Zhihuan Zhang, Xuena Liu, Na Li, Bili Cao, Tingting Huang, Ping Li, Shuqin Liu, Yongzhi Zhang, Kun Xu
Summary: This study investigated the effects of ofloxacin (OFL) concentration on tomato growth, photosynthetic activity, and chlorophyll fluorescence kinetics. The results showed that lower OFL concentrations had little impact on tomato growth, but higher concentrations caused chloroplast rupture, chlorophyll degradation, leaf etiolation, and inhibition of photosynthesis. Furthermore, the photosynthetic and photochemical efficiency and electron transfer rate were significantly inhibited by OFL.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Agronomy
Dominika Radzikowska-Kujawska, Paula John, Tomasz Piechota, Marcin Nowicki, Przemyslaw Lukasz Kowalczewski
Summary: In order to prevent further degradation of the environment, restrictions on the use of plant protection products and fertilizers are being strengthened annually. This study evaluated the effectiveness of four commercial biostimulants in improving the tolerance of winter wheat to drought stress. Among the biostimulants tested, those based on bacterial strains had the strongest positive effects on wheat plants' drought tolerance. These treatments led to higher CO2 assimilation, reduced transpiration values, and increased stomatal conductance under drought conditions, indicating improved water use efficiency. The use of these bacterial biostimulants also resulted in less damage to the photosynthetic apparatus and higher grain yield compared to other treatments. These findings suggest the potential of these biostimulants in mitigating drought-related yield losses in wheat.
Article
Agronomy
Chung- Chen, Kuan-Hung Lin, Meng-Yuan Huang, Chih-Kai Yang, Yu-Hsiu Lin, Mei-Li Hsueh, Li-Hua Lee, Ching-Wen Wang
Summary: SC and NT are two different modern orchard management systems in Taiwan for sustainable citrus orchard development. SC showed higher physiological parameters like Rd, Qy, LCP, Amax, and Fv/Fm compared to NT, especially in fall and winter. Pn, Gs, ETR, NPQ, and Fv/Fm values were higher in spring and summer compared to fall and winter, with positive correlations between Pn and Gs under both NT and SC in all seasons, and significant negative relationships between ETR and NPQ under NT in fall and winter.
Article
Forestry
Yanan Li, Anqi Fang, Tengzi Zhang, Songzhu Zhang, Wenxu Zhu, Yongbin Zhou
Summary: The study demonstrates that exogenous calcium can enhance drought resistance in Mongolian pine by regulating photoprotection and improving chlorophyll fluorescence induction dynamics.
Article
Multidisciplinary Sciences
Jian Zaiyou, Tang Xiaomin, Wang Hongsheng, Xu Guifang
Summary: The study evaluated the photosynthesis of Epimedium brevicornu and found that its photosynthesis is significantly inhibited at midday. Epimedium brevicornu is a typical shade plant, adapted to very low light conditions, with a light saturation point lower than general sunlight intensity.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Zhu Cun, Xiang-Zeng Xu, Jin-Yan Zhang, Sheng-Pu Shuang, Hong-Min Wu, Tong-Xin An, Jun-Wen Chen
Summary: Photosynthetic adaptive strategies of shade-tolerant species Panax notoginseng to high and low light conditions were investigated. Growth irradiance affected the thickness of leaf tissues and the performance of photosynthesis-related pigments and antioxidant enzymes. The results suggest that PSI photoinhibition and photodamage to PSII acceptor side are key factors influencing the adaptability of P. notoginseng to different light regimes.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Environmental Sciences
Marta Roman, Carmen B. de los Santos, Salvador Roman, Rui Santos, Jesus S. Troncoso, Elsa Vazquez, Celia Olabarria
Summary: Clam harvesting has a negative impact on seagrass carbon stocks in surface sediments, especially in intensively harvested areas. However, the coverage of seagrass beds contributes to the rapid recovery of organic carbon in sediments.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Multidisciplinary Sciences
Alize Deguette, Isabel Barrote, Joao Silva
Summary: This study evaluated the effects of marine heatwaves on Cymodocea nodosa. The results showed that during the simulated heatwave, the plant was able to maintain normal photosynthetic activity, but the photosynthetic performance and leaf biomass were negatively affected during the recovery period. The findings suggest that the forecasted climate change scenarios may have a negative impact on the population of C. nodosa.
SCIENTIFIC REPORTS
(2022)
Article
Genetics & Heredity
Miriam Ruocco, Marlene Jahnke, Joao Silva, Gabriele Procaccini, Emanuela Dattolo
Summary: Plant populations of seagrass Cymodocea nodosa along a latitudinal gradient show patterns of clinal variation in genotype and phenotype, influenced by differences in photoperiod and temperature cues. The study identified potential outlier loci related to adaptive differentiation across latitudes, with some SNPs associated to specific protein-coding genes and biological processes enriched in regulation of transcription and signalling. The results suggest the importance of gene-regulatory networks and epigenetic regulation for enabling adaptation of seagrass populations along environmental gradients.
FRONTIERS IN GENETICS
(2022)
Article
Environmental Sciences
Irene Olive, Emilio Garcia-Robledo, Joao Silva, Marina G. Pintado-Herrera, Rui Santos, Nicholas A. Kamenos, Pascale Cuet, Patrick Frouin
Summary: Seagrasses are receiving attention for their potential role as carbon sinks and nature-based solutions for climate change. However, there is still limited knowledge on seagrass metabolism and their contribution to biogeochemical cycles in certain species and regions. This study assessed the metabolic balance and nutrient cycling of seagrasses in a tropical reef lagoon, providing new information on a poorly studied seagrass species (Syringodium isoetifolium) and region (West Indian Ocean).
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Ana I. Tavares, Jorge Assis, A. R. Patricio, Rogerio Ferreira, Mohamed Ahmed Sidi Cheikh, Salomao Bandeira, Aissa Regalla, Iderlindo Santos, Maria Potouroglou, Suzana Nicolau, Maria Alexandra Teodosio, Carmen Almada, Rui Santos, Gareth A. Pearson, Ester A. Serrao
Summary: Population connectivity plays a significant role in the distribution of genetic diversity and divergence along a species range. However, understanding the inter-population dispersal processes in sessile marine species with no planktonic life stages is still limited. This study examines the genetic differentiation of the seagrass species Halodule wrightii along the western coast of Africa and investigates the hypothesis of predominant transportation of rafting seagrass by ocean currents or biotic vectors of dispersal. The results reveal low divergence among most populations, supporting the hypothesis of biotically mediated seed transport and suggesting independent sources of colonization.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Nadine Schubert, Viviana Pena, Vinicius W. Salazar, Paulo A. Horta, Pedro Neves, Claudia Ribeiro, Francisco Otero-Ferrer, Fernando Tuya, Fernando Espino, Kathryn Schoenrock, Laurie C. Hofmann, Line Le Gall, Rui Santos, Joao Silva
Summary: The study investigates the photosynthetic and calcification mechanisms of different species of Atlantic rhodoliths, finding significant differences and influences from local environmental conditions.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Ecology
Carmen B. de los Santos, Luis G. Egea, Marcio Martins, Rui Santos, Pere Masque, Gloria Peralta, Fernando G. Brun, Rocio Jimenez-Ramos
Summary: The researchers investigated four adjacent vegetated coastal habitats in Cadiz Bay, South Spain, and found that subtidal seagrass Cymodocea nodosa had the highest organic carbon and total nitrogen stocks, followed by upper intertidal salt marsh Sporobolus maritimus, subtidal rhizophytic macroalgae Caulerpa prolifera, and lower intertidal seagrass Zostera noltei. They also observed that sedimentation and organic carbon burial rates increased with elevation. Overall, this study emphasizes the importance of using habitat-specific carbon and nitrogen stocks and burial rates to predict the sequestration capacity of vegetated coastal habitats at the seascape level.
Article
Environmental Sciences
Isabel Casal-Porras, Carmen B. de los Santos, Marcio Martins, Rui Santos, J. Lucas Perez-Llorens, Fernando G. Brun
Summary: Seagrass meadows play a crucial role in mitigating climate change through carbon sequestration. However, the construction of coastal infrastructures has led to loss of seagrass cover and reduction in carbon stocks. The study also found that recently established meadows have lower carbon and nitrogen stocks compared to old-established ones, highlighting the continuous accumulation process. These findings contribute to understanding the spatial variability of blue carbon and nitrogen stocks in coastal systems impacted by urban development.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Plant Sciences
C. Ribeiro, T. Sauvage, S. Ferreira, R. Haroun, J. Silva, P. Neves
Summary: The green macroalga Caulerpa ashmeadii was recently discovered in the North-eastern Atlantic Ocean, on the southern coast of Porto Santo Island. It forms scattered patches in the subtidal soft-bottom, mainly among the green calcareous macroalgae Halimeda incrassata and Penicillus capitatus, within a depth range of 18-26 m. The estimated distribution area of Caulerpa ashmeadii is approximately 0.22 km2.
Correction
Ecology
Carmen B. de los Santos, Luis G. Egea, Marcio Martins, Rui Santos, Pere Masque, Gloria Peralta, Fernando G. Brun, Rocio Jimenez-Ramos
Review
Plant Sciences
Agustin Moreira-Saporiti, Mirta Teichberg, Eric Garnier, J. Hans C. Cornelissen, Teresa Alcoverro, Mats Bjork, Christoffer Bostrom, Emanuela Dattolo, Johan S. Eklof, Harald Hasler-Sheetal, Nuria Marba, Lazaro Marin-Guirao, Lukas Meysick, Irene Olive, Thorsten B. H. Reusch, Miriam Ruocco, Joao Silva, Ana I. Sousa, Gabriele Procaccini, Rui Santos
Summary: Over the past three decades, quantitative approaches based on organism traits have advanced ecological research by establishing links between environmental drivers, functional traits, and ecosystem functions. The ecology of seagrasses, a research subfield, has frequently used trait-based approaches but lacks synthesis. This study compiled a comprehensive trait-based response-effect framework (TBF) and applied it to the global seagrass literature, identifying gaps and opportunities for further research.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Environmental Sciences
Fernando Tuya, Nadine Schubert, Julio Aguirre, Daniela Basso, Eduardo O. Bastos, Flavio Berchez, Angelo F. Bernardino, Nestor E. Bosch, Heidi L. Burdett, Fernando Espino, Cindy Fernandez-Garcia, Ronaldo B. Francini-Filho, Patrick Gagnon, Jason M. Hall-Spencer, Ricardo Haroun, Laurie C. Hofmann, Paulo A. Horta, Nicholas A. Kamenos, Line Le Gall, Rafael A. Magris, Sophie Martin, Wendy A. Nelson, Pedro Neves, Irene Olive, Francisco Otero-Ferrer, Viviana Pena, Guilherme H. Pereira-Filho, Federica Ragazzola, Ana Cristina Rebelo, Claudia Ribeiro, Eli Rinde, Kathryn Schoenrock, Joao Silva, Marina N. Sissini, Frederico T. S. Tamega
Summary: Global marine conservation is hindered by an imbalance in research efforts and policy actions, which limits progress towards sustainability. Rhodolith beds, despite their global ecological importance and numerous ecosystem functions, remain disproportionately understudied compared to other coastal ecosystems. The lack of information about these habitats and their ecosystem services hampers effective conservation measures, especially considering the severe pressures and threats they face. Therefore, it is crucial to prioritize research on rhodolith beds, combat degradation, and protect biodiversity for the future.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)