Article
Biotechnology & Applied Microbiology
Mana Nakayasu, Momoka Amano, Tsuyoshi Tanaka, Ginga Shimakawa, Yusuke Matsuda
Summary: Highly oil-accumulative diatoms have potential as biomass for biofuel production. Understanding the relationship between oil accumulation and photosynthesis under fluctuating environmental conditions is crucial for high-yield diatom oil harvesting. In this study, the physiological responses of two diatom species (Fistulifera solaris and Mayamaea sp. JPCC CTDA0820) to nitrogen starvation were characterized, revealing distinct nitrogen requirements and photosynthetic responses. F. solaris exhibited growth retardation and suppressed photosynthetic activity, while Mayamaea sp. maintained normal growth and decreased Chl a amount per cells. These findings suggest two types of photosynthetic responses in oleaginous diatoms under nitrogen starvation.
MARINE BIOTECHNOLOGY
(2023)
Article
Plant Sciences
Jiafei Zhang, Liang Wan, C. Igathinathane, Zhao Zhang, Ya Guo, Dawei Sun, Haiyan Cen
Summary: This study demonstrated the spatiotemporal heterogeneity of chlorophyll content and fluorescence response within rice leaves and canopies. The research revealed that nitrogen supply affects the occurrence time of the reverse vertical pattern and highlights the potential use of end acceptors at photosystem I electron acceptor side per cross section as a sensitive predictor for leaf chlorophyll content heterogeneity.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Sheikh Shanawaz Bashir, Tariq Omar Siddiqi, Dinesh Kumar, Altaf Ahmad
Summary: This study investigated the effects of low nitrogen supply on the growth, physiological and biochemical characteristics, chlorophyll fluorescence, yield traits, and gene expression analysis of rice cultivars. The results showed that Vikramarya cultivar exhibited better plant growth, physiological efficiency, agronomic efficiency, and improved nitrogen use efficiency (NUE) compared to Aditya cultivar under low nitrogen treatment. These findings provide a basis for selecting crop cultivars with high nitrogen utilization efficiency under low nitrogen treatment.
MOLECULAR BIOLOGY REPORTS
(2023)
Article
Plant Sciences
Xingkang Li, Yuanmei Liang, Kai Li, Peng Jin, Jie Tang, Anna Klepacz-Smolka, Stanislaw Ledakowicz, Maurycy Daroch
Summary: The study showed that both low temperature and nitrogen starvation resulted in decreased pigment content in the thermophilic cyanobacterium strain Thermosynechococcus E542, but had different effects on the OJIP curves. The combined treatment led to the lowest pigment content.
Article
Plant Sciences
Ruidong Zhang, Zhongxiao Yue, Xiaofei Chen, Yitao Wang, Yufei Zhou, Wenjuan Xu, Ruidong Huang
Summary: Waterlogging severely restricts sorghum growth, but exogenous foliar spraying of melatonin and nitrogen can alleviate these negative effects, especially for waterlogging-sensitive cultivars.
PLANT GROWTH REGULATION
(2022)
Article
Agronomy
Yupeng Li, Xiaobo Gu, Yuannong Li, Heng Fang, Pengpeng Chen
Summary: The study found that ridge-furrow film mulching (RFFM) and nitrogen fertilization have significant effects on crop physiological indicators such as photosynthesis, water utilization, and yield. The positive effects on photosynthetic and chlorophyll fluorescence of the plastic film were better than biodegradable film, especially in water use efficiency (WUE). It is recommended to use biodegradable film and an appropriate amount of nitrogen fertilizer in semi-arid regions of China.
AGRICULTURAL WATER MANAGEMENT
(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
Multidisciplinary Sciences
Vanessa Krauspe, Matthias Fahrner, Philipp Spat, Claudia Steglich, Nicole Frankenberg-Dinkel, Boris Macek, Oliver Schilling, Wolfgang R. Hess
Summary: The protein NblD plays a crucial role in the degradation of phycobilisomes in cyanobacteria under nitrogen-limited conditions. Studies have shown that NblD is essential for maintaining normal growth of cyanobacterial cells during nitrogen limitation.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Forestry
Zemin Ai, Jiayi Li, Xinghua Li, Jiaoyang Zhang, Hongfei Liu, Hongwei Xu, Guobin Liu, Sha Xue
Summary: Knowledge of plant photosynthesis, biomass, and stress resistance is important for understanding vegetation growth and restoration. However, the response of these plant traits to plant-soil interactions at different successional stages is still poorly understood. A greenhouse experiment was conducted to investigate the effects of soil from different successional stages on plant traits, and the results showed specific directional responses of plant traits to plant-soil interactions.
Article
Agricultural Engineering
Xiaobin Wang, Xiaohua Shi, Runlong Zhang, Kaijing Zhang, Lingmei Shao, Tong Xu, Danqing Li, Dong Zhang, Jiaping Zhang, Yiping Xia
Summary: As global temperatures rise, heat stress has a severe impact on the growth and development of herbaceous peony. This study found that heat-tolerant cultivars exhibit less damage and a delayed stay-green duration under high-temperature stress, attributed to their enhanced antioxidant enzyme activity and heat acclimation.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
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
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
Geeta Biradar, R. H. Laxman, K. S. Shivashankara, John Sunoj Valiaparambil Sebastin
Summary: This study classified tomato genotypes based on their response to high temperature using HCA and identified key physiological and yield traits using PCA. The results showed that traits such as photosynthesis, chlorophyll stability, and relative water content were important indicators of high temperature tolerance in tomato. PCA and HCA can be used as efficient screening methods for assessing the magnitude of high temperature tolerance in a large group of genotypes.
ACTA PHYSIOLOGIAE PLANTARUM
(2022)
Article
Biotechnology & Applied Microbiology
Ricardo M. Chaloub, Nathania Maria S. Motta, Silvia P. de Araujo, Paula F. de Aguiar, Anita F. da Silva
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2015)
Article
Agricultural Engineering
Raquel Rezende dos Santos, Ofelia de Queiroz Fernandes Araujo, Jose Luiz de Medeiros, Ricardo Moreira Chaloub
BIORESOURCE TECHNOLOGY
(2016)
Article
Marine & Freshwater Biology
Ana Paula Martins Winter, Ricardo Moreira Chaloub, Gustavo Adolpho Santos Duarte, Clovis Barreira e Castro
BRAZILIAN JOURNAL OF OCEANOGRAPHY
(2016)
Article
Biotechnology & Applied Microbiology
Graciela S. Diniz, Anita F. Silva, Ofelia Q. F. Araujo, Ricardo M. Chaloub
JOURNAL OF APPLIED PHYCOLOGY
(2017)
Article
Microbiology
Simone Dealtry, Angela Michelato Ghizelini, Leda C. S. Mendonca-Hagler, Ricardo Moreira Chaloub, Fernanda Reinert, Tacio M. P. de Campos, Newton C. M. Gomes, Kornelia Smalla
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2018)
Article
Electrochemistry
Larissa Soares Rodrigues, Anita Ferreira do Valle, Eliane D'Elia
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Biotechnology & Applied Microbiology
Raquel Rezende dos Santos, Ricardo Moreira Chaloub, Jose Luiz de Medeiros, Ofelia de Queiroz Fernandes Araujo
JOURNAL OF APPLIED PHYCOLOGY
(2019)
Article
Ecology
Phillipe M. Rosado, Deborah C. A. Leite, Gustavo A. S. Duarte, Ricardo M. Chaloub, Guillaume Jospin, Ulisses Nunes da Rocha, Joao P. Saraiva, Francisco Dini-Andreote, Jonathan A. Eisen, David G. Bourne, Raquel S. Peixoto
Review
Biotechnology & Applied Microbiology
Alejandra Irina Eismann, Renata Perpetuo Reis, Anita Ferreira da Silva, Diana Negrao Cavalcanti
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2020)
Article
Food Science & Technology
Suellen Paula da Silva, Anita Ferreira do Valle, Daniel Perrone
Summary: This study aimed to develop nutritionally enriched and sensorially well-accepted biscuits by incorporating spray-dried microencapsulated S. maxima biomass. Adding 20% of Spirulina biomass did not affect the sensory acceptance and purchase intent scores of the biscuits. The biscuits had 40% more proteins and could serve as a nutritional source of iron.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Ricardo M. Chaloub, Victor Hugo S. Monteiro, Mario Giordano
Summary: Low salinities have a negative impact on biomass production, biovolume, and final yield of dry biomass in Isochrysis galbana. However, they do not significantly affect the cellular content of chlorophylls and carotenoids. The content of these pigments increases in the stationary growth phase, regardless of salinity. The total lipid content of the cells is not modified by decreasing salinity. In addition, low salinities reduce the photosynthetic efficiency of the cells, particularly in the stationary growth phase.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Multidisciplinary Sciences
Michelle Amario, Livia Bonetti Villela, Douglas Jardim-Messeder, Arthur Weiss Silva-Lima, Phillipe Magalhaes Rosado, Rodrigo Leao de Moura, Gilberto Sachetto-Martins, Ricardo Moreira Chaloub, Paulo Sergio Salomon
Summary: This study investigates the physiological response to heat stress of three genetically different Symbiodiniaceae strains isolated from the scleractinian coral Mussismilia braziliensis. The study found that the production of reactive oxygen species (ROS) varied across strains and exposure times, with a 2-fold increase at higher temperature in one of the strains. There was also intrapopulation difference in ROS production, highlighting the importance of single cell approaches. Additionally, cell size increased and chlorophyll fluorescence decreased at higher temperatures, indicating a photoacclimation response.
Article
Green & Sustainable Science & Technology
Graciela S. Diniz, Tiago C. O. Tourinho, Anita F. Silva, Ricardo M. Chaloub
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2017)
Article
Plant Sciences
Jeffrey M. Schell, Deborah S. Goodwin, Rebecca H. Volk, Amy N. S. Siuda
Summary: Understanding the environmental tolerances and growth rates of different species of macroalgae is crucial for predicting their spatial and temporal dynamics. This study found that different morphotypes of Sargassum exhibited varying responses to temperature and salinity conditions.
Article
Plant Sciences
Erika Valzauez-Delfin, Carmen Galindo-De Santiago, Arely Paredes-Chi, Ameyalli Rios-Vazquez, Ana Benavides-Lahnstein, Kaysara Khatun, Juliet Brodie
Summary: Massive strandings of seaweed on the eastern coasts of the Yucat ' an peninsula, Mexico have become a major socioecological problem. A citizen science initiative, Big Seaweed Search Mexico (BSS-Mx), was developed to monitor temporal changes in the biomass stranded. The results represent baseline information that should be considered to develop management strategies and marine conservation actions according to each region.
Review
Plant Sciences
Lee H. Dietterich, Suhey Ortiz Rosa, Bianca R. Charbonneau, S. Kyle McKay
Summary: Riverine macrophytes play crucial ecological roles in river ecosystems, but their growth models have received relatively limited attention compared to other aquatic or terrestrial plants. This systematic review reveals that current models often overlook important factors such as shading and the role of macrophytes in nutrient cycles. Future research should focus on exploring these factors and developing a conceptual framework to guide macrophyte growth modeling. Emphasizing modularity and accessibility is also important for improving efforts to model and manage riverine ecosystems.
Review
Plant Sciences
Alba Martin, Jordi Corbera, Oriol Cano, Catherine Preece, Josep Penuelas, Francesc Sabater, Marcos Fernandez-Martinez
Summary: Bryophytes can play a significant role in ecosystem processes and hold potential as bio-indicators for monitoring environmental pollution. This study examined the effects of NO3- pollution on the elemental composition of aquatic and semi-aquatic bryophytes and identified suitable species as bio-indicators. Higher NO3- concentrations were found in spring water from intense farming and urban areas, positively correlated with N content and delta N-15 isotope ratio in bryophytes. Apopellia endiviifolia and Oxyrrhynchium speciosum were highlighted as promising candidates for bio-indication of aquatic NO3- pollution.
Article
Plant Sciences
Christine B. Rohal, Carrie Reinhardt Adams, Charles W. Martin, Sarah Tevlin, Laura K. Reynolds
Summary: This study investigated the seed production, seed banking, and germination cues of sub-tropical Vallisneria americana. It was found that the seeds of sub-tropical populations were dormant and could only germinate in the presence of organic material, light, or following scarification. Germination rate was enhanced by the presence of low-oxygen organic sediments and ethanol. These findings suggest a germination strategy focused on exploiting openings in existing vegetation following disturbance.
Article
Plant Sciences
Fabiano Faga, Carlos Frederico Deluqui Gurgel
Summary: Climate change is altering the distribution of marine biota, including Sargassum species. Future changes in abiotic variables are predicted to cause shifts in the latitudinal range and suitability area of Sargassum species. These changes may have significant impacts on marine ecosystems.
Article
Plant Sciences
Ulo Mander, Martin Maddison, Alex C. Valach, Kaido Soosaar, Keit Kill, Kuno Kasak
Summary: Constructed wetlands treating runoff from agricultural catchments can reduce nutrient load of water, but they can also be significant sources of greenhouse gases, especially methane. This study assessed methane emission potentials and phosphorus removal efficiency in a 0.45 ha in-stream surface flow constructed wetland, and analyzed the temporal dynamics of methane emissions and phosphorus removal over a nearly 4-year period. The results showed a clear seasonal dynamic in phosphorus removal efficiency and an increasing trend in methane emissions over the years, with the majority of methane fluxes occurring during the warm period. Maintenance of the wetland and regular removal of aboveground vegetation can reduce methane emissions, and regular sediment removal is also necessary due to phosphorus saturation.
Article
Plant Sciences
Monsif El Madany, Mustapha Hassoun, Fatima El Aamri, Noureddine El Mtili
Summary: The non-indigenous brown alga Rugulopteryx okamurae is invading and proliferating massively in the northwest of Morocco, including the Mediterranean Sea and Atlantic Ocean.
Article
Plant Sciences
Jessa May Malanguis, Tim Sierens, Ludwig Triest
Summary: This study demonstrates the importance of movement ecology and dispersal mechanism in the dynamics and resilience of seagrass populations and ecosystems. The comparison of genetic diversity and fine-scaled structure of two co-occurring seagrass species reveals the significance of different survival strategies and reproductive modes. These findings have important implications for conservation efforts, suggesting the preservation of natural expansion and local seed recruitment for successful conservation.
Article
Plant Sciences
Zhi-Huan Chen, Rui Zhang, Jun-Cai Xin, Zi-Han Qian, Shu-Jie Wang, Shang-Yan Qiu, Xue-Ge He, Chao Si
Summary: Nutrient availability and light intensity play important roles in the expansion of amphibious clonal plants from terrestrial to aquatic habitats. High nutrient levels and light conditions promote the growth of the apical portions and overall performance of the clones. Maintaining clonal integration can benefit the expansion of the plants by optimizing resource utilization. These findings have implications for predicting community dynamics and vegetation restoration in ecotones like wetlands.