Article
Biochemistry & Molecular Biology
Alessio Massironi, Alessandro Di Fonzo, Ivan Bassanini, Erica Elisa Ferrandi, Stefania Marzorati, Daniela Monti, Luisella Verotta
Summary: The valorization of biomass residuals is a significant challenge for the scientific community, and this study focuses on plant residuals as an attractive source of bioactive compounds. By using supercritical CO2 technology, compounds can be recovered without degradation, providing a selective and cost-effective method for obtaining added-value compounds.
Article
Agronomy
Kailiang Bo, Ying Duan, Xiyan Qiu, Meng Zhang, Qin Shu, Yapei Sun, Yadi He, Yuzi Shi, Yiqun Weng, Changlin Wang
Summary: This study reveals that the CpDll gene regulates the formation of deeply lobed leaves in zucchini, and sequence variation in its promoter region is associated with leaf shape. The findings provide new insights into the molecular basis of leaf lobe formation in pumpkin/squash and other cucurbit crops, and facilitate marker-assisted selection in zucchini breeding.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Multidisciplinary Sciences
Chinelo Ezeani, Ifeoma Ezenyi, Nekpen Erhunse, Dinkar Sahal, Theophine Akunne, Charles Okoli
Summary: This study evaluated the antiplasmodial potential of selected plants used to treat malaria in Nsukka, Enugu state, Nigeria. The results showed that the ethanol extract of Cucurbita pepo displayed excellent antiplasmodial activity and protected mice from malaria parasite infection and anemia.
Article
Multidisciplinary Sciences
Ehab A. Ibrahim
Summary: Phytoextraction is a promising technique for removing heavy metals from contaminated soils. In this study, the phytoextraction potential of three plant species in soil contaminated with multiple metals was evaluated. The results showed that Raphanus sativus had the highest biomass and metal accumulation capacity, and the application of citric acid significantly improved plant growth and metal uptake. These findings suggest that Raphanus sativus and the use of citric acid could be effective in phytoextraction of Cd and Ni from contaminated soils.
SCIENTIFIC REPORTS
(2023)
Article
Plant Sciences
Hong-Long Zhao, Tian-Gen Chang, Yi Xiao, Xin-Guang Zhu
Summary: Improving photosynthesis is crucial for increasing crop yield potential, but elevated CO2 levels can decrease protein content in crops. The developed plant metabolism model successfully predicts inhibition of nitrogen assimilation under elevated CO2 and suggests enhancing alpha-ketoglutarate supply as a potential strategy for maintaining high rates of nitrogen assimilation. This model can aid research on interactions between photosynthesis, respiration, and nitrogen assimilation, supporting enhanced photosynthetic efficiency in a high-CO2 world.
Article
Biochemistry & Molecular Biology
Guenter G. Lehretz, Anja Schneider, Dario Leister, Uwe Sonnewald
Summary: Expression of VPZ genes in potato plants accelerates the induction and relaxation of photoprotection under various light conditions but does not improve photosynthetic rate or plant growth. Instead, tuber yield decreases under fluctuating light conditions. The negative effect may be due to reduced radiation use efficiency caused by strong NPQ induction under high light conditions.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2022)
Article
Agronomy
L. Munjonji, K. K. Ayisi, T. P. Mafeo, T. Maphanga, K. E. Mabitsela
Summary: The study found that soil clay content did not affect plant CO2 assimilation rates and soil CO2 emission rates in irrigated citrus, but seasonal variation had a significant impact on both processes. Soil CO2 emission rates were highest in summer, while leaf CO2 assimilation rates peaked in autumn. A snapshot analysis suggested that irrigated citrus orchards act as net sinks of CO2 in summer, autumn, and winter.
Article
Plant Sciences
Leonardo Basso, Kazuma Sakoda, Ryouhei Kobayashi, Wataru Yamori, Toshiharu Shikanai
Summary: This study demonstrates that overexpressing K+ exchange antiporter 3 (KEA3) and introducing Flv proteins can alleviate photodamage of photosystem I and enhance the rate of CO2 fixation under fluctuating light conditions.
Article
Chemistry, Physical
Danielle A. Henckel, Michael J. Counihan, Hannah E. Holmes, Xinyi Chen, Uzoma O. Nwabara, Sumit Verma, Joaquin Rodriguez-Lopez, Paul J. A. Kenis, Andrew A. Gewirth
Summary: The study found that the local pH of a gas diffusion electrode undergoing CO2 reduction is significantly lower than the bulk electrolyte pH, showing dependence on applied potential. The decrease in pH is attributed to the formation of malachite from soluble Cu(II) species on the initially oxidized electrode surface.
Article
Green & Sustainable Science & Technology
Dunia Rios-Yunes, Ana R. Borrero-Santiago, K. Avarachen Mathew, Susana V. Gonzalez, Tomasz M. Ciesielski, Alexandros G. Asimakopoulos, Murat V. Ardelan
Summary: This study evaluated the changes in the composition of DOM in sediments from a CCS site in the Baltic Sea during CO2 seepage, and found that DOM compounds were affected under pH7 conditions.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Plant Sciences
Xiao-Qian Wang, Zhi-Lan Zeng, Zi-Ming Shi, Ji-Hua Wang, Wei Huang
Summary: Photosynthetic efficiency varies among different rose genotypes, with stomatal conductance playing a crucial role in determining the efficiency under fluctuating light conditions. This study compared the photosynthetic performance of two modern rose cultivars and one old Chinese rose plant, revealing the importance of mesophyll conductance in dynamic photosynthesis and its potential for improving photosynthetic efficiency in rose cultivars.
Article
Chemistry, Multidisciplinary
Leyu Liu, Hai Xiao
Summary: In this study, the interplay between the applied potential (U) and the kinetics of CO2 activation in electrochemical CO2 reduction reaction (eCO(2)RR) on Cu surfaces was investigated. It was found that the CO2 activation mechanism in eCO(2)RR varies with U, with the sequential electron-proton transfer (SEPT) mechanism dominant at the working U and switched to the concerted proton-electron transfer (CPET) mechanism at highly negative U. Catalyst designs that effectively suppress the adverse effect of Pauli repulsion were also demonstrated. This fundamental understanding may have broad implications for electrochemical reduction reactions of closed-shell molecules.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Congwen Sun, Jinhui Hao, Bing Wei, Meng Wu, Hong Liu, Yusong Xiong, Bochen Hu, Longhua Li, Min Chen, Weidong Shi
Summary: This study successfully prepared Cux/CdCO3 composite catalyst rich in interfaces for high-efficiency CO2 reduction to CO production. The catalyst maintained a suitable high local pH value, inhibiting the competitive hydrogen evolution reaction, and the compact structure accelerated the reaction kinetics of CO2 to CO conversion.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Dillon T. Hofsommer, Ying Liang, Sandesh S. Uttarwar, Manu Gautam, Sahar Pishgar, Saumya Gulati, Craig A. Grapperhaus, Joshua M. Spurgeon
Summary: The conversion of waste CO2 to value-added chemicals through electrochemical reduction is a promising technology. This study investigates the electrochemistry of CO2 reduction in acidic methanol catholyte, with a focus on the selectivity control and potential dependence of the product distribution. The results show that by adjusting the pH of the catholyte, high selectivity towards methyl formate can be achieved.
Article
Plant Sciences
Natalia N. Rudenko, Lyudmila K. Ignatova, Ilya A. Naydov, Natalia S. Novichkova, Boris N. Ivanov
Summary: The carbonic anhydrase (CA) activities and gene expression in different parts of Arabidopsis thaliana leaves were found to be influenced by the concentration of carbon dioxide in the environment. The CA activities in the cytoplasm, chloroplast stroma, and chloroplast thylakoids were higher at lower CO2 concentrations, which was accompanied by an increase in the expression levels of related genes. The study also suggested that in higher plants, the supply of inorganic carbon to carboxylation sites is carried out through the cooperative functioning of CAs located in the cytoplasm and chloroplasts.
Review
Biochemistry & Molecular Biology
Maria Ladeynova, Darya Kuznetsova, Maxim Mudrilov, Vladimir Vodeneev
Summary: Plants respond to environmental stresses by transmitting long-distance signals and changing hormone levels. Long-distance electrical signals, induced by local stimulation, regulate hormone levels and interact with phytohormones. This review provides insights into the interactions between electrical signals and phytohormones, highlighting important integration nodes involving changes in pH, Ca2+, and ROS levels, and gives an overview of how electrical signals and hormones work together to induce a systemic response.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Anna Pecherina, Marina Grinberg, Maria Ageyeva, Daria Zanegina, Elena Akinchits, Anna Brilkina, Vladimir Vodeneev
Summary: Salinity is a common factor that limits crop productivity. The negative effects of salt stress on plant processes are caused by osmotic stress and toxic ions. The study investigated how salinity affects photosynthesis, transpiration, water content, and cytosolic pH in tobacco and potato plants. Salinity decreased photosynthesis activity and led to a decrease in water content and transpiration. The cytosolic pH also decreased in tobacco and potato plants. The study analyzed potential mechanisms of the effects of salinity on photosynthesis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Lyubov Yudina, Ekaterina Sukhova, Ekaterina Gromova, Maxim Mudrilov, Yuriy Zolin, Alyona Popova, Vladimir Nerush, Anna Pecherina, Andrey A. A. Grishin, Artem A. A. Dorokhov, Vladimir Sukhov
Summary: Parameters of illumination, including spectra, intensity, and photoperiod, have a significant impact on plant cultivation under greenhouse conditions, especially for vegetables like lettuce. This study investigated the influence of photoperiod on lettuce production and photosynthesis parameters. The results showed that increasing the duration of illumination can stimulate dry weight accumulation, which can be achieved by either increasing light period or decreasing light intensity.
Article
Plant Sciences
Marina Grinberg, Yuliya Nemtsova, Maria Ageyeva, Anna Brilkina, Vladimir Vodeneev
Summary: This study investigated the mechanisms of systemic functional responses induced by electrical signals. It was found that chronic beta-irradiation had a positive effect on the morphometric parameters and photosynthetic activity of tobacco plants. Irradiation enhanced the plant's response to electrical signals, resulting in temporary changes in chlorophyll fluorescence parameters and increased amplitude and leaf coverage. Irradiation also enhanced signal-induced cytoplasmic acidification and showed stronger inhibition of stomatal conductance in the plants. The study concluded that the effect of irradiation on the systemic response induced by electrical signals mainly occurs during the transformation stage.
PHOTOSYNTHESIS RESEARCH
(2023)
Article
Plant Sciences
N. S. Mshenskaya, M. A. Grinberg, E. A. Kalyasova, V. A. Vodeneev, N. V. Ilin, N. N. Slyunyaev, E. A. Mareev, Y. V. Sinitsyna
Summary: Magnetic fields with a frequency of 14.3 Hz were found to have a protective effect on wheat plants under drought conditions, delaying harmful changes in transpiration and photosynthesis processes for several days.
Article
Biochemistry & Molecular Biology
Ekaterina Sukhova, Vladimir Sukhov
Summary: Electrical signals in plants are generated in response to various stressors and can greatly affect different physiological processes. These signals play a crucial role in integrating plant responses to stress, but they may also cause temporary separation between cells or plant parts. This separation can have adaptive benefits by storing energy compounds, limiting damage propagation, and potentially triggering programmed cell death.
Review
Chemistry, Physical
Dmitry A. Serov, Venera V. Khabatova, Vladimir Vodeneev, Ruibin Li, Sergey V. Gudkov
Summary: The resistance of microorganisms to antimicrobial drugs is a global issue, and significant efforts are being made to find antimicrobial components, approaches, and therapies. Selenium nanoparticles have high potential for antimicrobial activity, as evidenced by the increasing number of publications in the past decade. This review provides up-to-date information on the antimicrobial properties of selenium nanoparticles, including susceptible microorganisms, mechanisms of action on bacteria, and the impact of nanoparticle properties on antimicrobial activity. It comprehensively describes the antiviral, antibacterial, and antifungal effects of selenium nanoparticles.
Article
Environmental Sciences
Ekaterina Sukhova, Yuriy Zolin, Alyona Popova, Lyubov Yudina, Vladimir Sukhov
Summary: Salinization is a significant factor that limits agricultural plant productivity. Multispectral imaging and the photochemical reflectance index (PRI) can be used to detect early changes in plants under salinization. In this study, we investigated the sensitivity of modified PRIs to changes in pea plants under salinization treatment. The results showed that long-wavelength PRIs decreased, while short-wavelength PRIs increased under salinization. Long-wavelength PRIs were found to be more sensitive to plant changes and could potentially be used as a universal tool for early detection of stress in plants.
Article
Plant Sciences
Daria Ratnitsyna, Lyubov Yudina, Ekaterina Sukhova, Vladimir Sukhov
Summary: Photodamage is a key mechanism of photosynthetic disruption in plants under stress. Investigating photodamage is important for both basic and applied research. However, the complex mechanisms of photodamage make it difficult to use experimental methods, so developing mathematical models and conducting model-based analysis can overcome these limitations. In this study, a modified Farquhar-von Caemmerer-Berry model was developed to describe photodamage of photosynthetic electron transport in C-3 plants, using experimental results from pea plants. The model analysis showed that inactivation of linear electron flow and Rubisco can both increase and decrease photodamage. Simulation of photodamage under different temperatures and light intensities revealed multi-phase temperature dependences, with paradoxical increases in thermal tolerance observed under high temperatures. It was also found that changes in temperature optimums of linear electron flow and Rubisco can modify temperature dependences of photosynthetic electron transport under photodamage induction, mainly stimulating its photodamage.
Article
Plant Sciences
Lyubov Yudina, Alyona Popova, Yuriy Zolin, Ekaterina Sukhova, Vladimir Sukhov
Summary: By studying the effects of increased pressure, it was found that pressure can induce electrical signals and inhibit photosynthesis in plants.
Article
Plant Sciences
Maria N. Ageyeva, Tatiana A. Zdobnova, Mariia S. Nazarova, Galina N. Raldugina, Denis V. Beliaev, Vladimir A. Vodeneev, Anna A. Brilkina
Summary: Salinity has a significant impact on important processes in plants and decreases their yield. This study revealed that lower concentrations of NaCl result in cytosolic acidification in plant cells, while higher concentrations can cause an increase or return to normal levels of cytosolic pH. Additionally, salinity inhibits plant development and affects morphology-related parameters. The relationship between cell length and NaCl concentration is nonlinear.
Article
Plant Sciences
Alyona Grishina, Oksana Sherstneva, Anna Zhavoronkova, Maria Ageyeva, Tatiana Zdobnova, Maxim Lysov, Anna Brilkina, Vladimir Vodeneev
Summary: This study compares the efficiency of hyperspectral imaging and pulse amplitude modulation fluorometry in detecting plant pathogens, and finds that pulse amplitude modulation fluorometry allows for earlier assessment of physiological changes caused by infection.