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A simple, rapid and accurate mid-infrared (MIR) spectroscopic method for simultaneously determining the product (ethanol) content and the nutrient (sugar) content in plant-cell culture media was developed using a Fourier transform infrared (FT-IR) spectrometer equipped with an attenuated total reflectance (ATR) accessory. We assessed the potential of this method by comparing it to a high-performance liquid chromatography (HPLC) method, and using the developed method to measure the ethanol and sugar contents simultaneously in liquid culture media with rice and tabacum cell suspensions, respectively. The experimental results suggest that the sugar consumption and ethanol production behaviors of the plant cell suspensions can be non-destructively and simultaneously monitored using the developed method. Furthermore, the spectroscopic method provided in this study could be developed into a technique that could be used to analyze the overall kinetics of the metabolism of the plant cell suspensions.
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http://dx.doi.org/10.1007/s00449-004-0388-7 | DOI Listing |
Crit Rev Immunol
January 2025
Department of Pharmacy, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Dist. Medchal,500078, Telangana State, India.
Caseinolytic protease P (ClpP) is a highly conserved serine protease that plays a pivotal role in protein homeostasis and quality control in bacteria, mitochondria of mammalian cells, and plant chloroplasts. As the proteolytic core of the ATP-dependent Clp protease complex, ClpP partners with regulatory ATPases (e.g.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Biology, The University of Saskatchewan, College of Arts and Science, Saskatoon, Canada.
Plasmodesmata are specialized structures in plant cell walls that mediate intercellular communication by regulating the trafficking of molecules between adjacent cells. The actin cytoskeleton plays a pivotal role in controlling plasmodesmatal permeability, but the molecular mechanisms underlying this regulation remain unclear. Here, we report that BRK1, a component of the WAVE/SCAR complex involved in Arp2/3-mediated actin nucleation, localizes to PD and primary pit fields in A.
View Article and Find Full Text PDFPLoS Comput Biol
September 2025
Mathematical and Statistical Methods (Biometris), Wageningen University, Wageningen, The Netherlands.
Many plant cell functions, including cell morphogenesis and anisotropic growth, rely on the self-organisation of cortical microtubules into aligned arrays with the correct orientation. An important ongoing debate is how cell geometry, wall mechanical stresses, and other internal and external cues are integrated to determine the orientation of the cortical array. Here, we demonstrate that microtubule-based nucleation can markedly shift the balance between these often competing directional cues.
View Article and Find Full Text PDFPLoS One
September 2025
Department of Emergency Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
Background: Heat illness is a dangerous condition marked by a widespread inflammatory response. Although Pogostemon cablin (Blanco) Benth and its derivatives are clinically used, their mechanisms remain unclear.
Methods: 11 heat illness patients and 14 healthy volunteers from Southwest Medical University Affiliated Hospital were enrolled.
Cell Mol Biol (Noisy-le-grand)
September 2025
Department of Chemistry, Faculty of Science and Health, Koya University, Koya, KOY45, Kurdistan Region, Iraq.
Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by joint inflammation. Given the side effects of conventional treatments, this study focuses on the anti-inflammatory effects of purslane (Portulaca oleracea) and turmeric (Curcuma longa). The research is driven by the growing demand for plant based-treatment for safer therapeutic options for RA management.
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