Review
Plant Sciences
G. G. Striker
Summary: The movement of gases within plants, especially in flood-prone areas, is crucial for their survival. Wetland plants have adapted to low oxygen levels by forming gas-filled spaces in their tissues, allowing for gas movement between shoots and roots. Oxygen movement in plant roots is mainly through diffusion, but certain species also utilize pressurized flows to facilitate gas movement. This article explores the different mechanisms involved in oxygen movement within plants.
Article
Engineering, Environmental
Likui Feng, Shufei He, Hang Yu, Jian Zhang, Zizhang Guo, Liangliang Wei, Haiming Wu
Summary: This study investigated the role of wetland plants in the treatment of wastewater in constructed wetlands, finding that girdling plants led to a decrease in O-2 release and an increase in greenhouse gas emissions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Plant Sciences
Dang Van Duyen, Youngho Kwon, Nkulu Rolly Kabange, Ji-Yoon Lee, So-Myeong Lee, Ju-Won Kang, Hyeonjin Park, Jin-Kyung Cha, Jun-Hyeon Cho, Dongjin Shin, Jong-Hee Lee
Summary: This study evaluated the root growth and radial oxygen loss (ROL) rate in response to iron (II) sulfide (FeS) in rice and found differences in these traits between parental lines and derived population. QTL analysis identified genetic loci associated with the control of ROL and root area, as well as genes involved in stress signaling, defense response mechanisms, and transcriptional regulation. This study provides new insights and approaches for understanding the regulation of ROL in rice.
Article
Engineering, Environmental
Xiaoyu Ma, Yanliang Du, Wenqi Peng, Shuanghu Zhang, Xiaobo Liu, Shiyang Wang, Shoujun Yuan, Olaf Kolditz
Summary: The study indicates that the integrated vertical flow constructed wetland has favorable performance in removing ammonia and total nitrogen, with significant effects of vegetation on treatment efficiency. Oxygen loss and organic carbon release from plant roots play crucial roles in the treatment processes.
Article
Chemistry, Multidisciplinary
Linlin Fei, Feifei Qin, Jianlin Zhao, Dominique Derome, Jan Carmeliet
Summary: In this work, a numerical model for isothermal liquid-vapor phase change is proposed based on the pseudopotential lattice Boltzmann method. The model is verified and applied to study convective drying of a dual-porosity porous medium at the pore scale, providing new insights into the drying physics and direct modeling at the pore scale.
Article
Engineering, Environmental
Hongping Wang, Hong Chang, Cunxu Zhang, Chenglian Feng, Fengchang Wu
Summary: Constructed wetlands can effectively remove large amounts of chlorinated paraffins, with removal mainly achieved through sediment sorption and bioaccumulation in plants. Medium-chain chlorinated paraffins (MCCPs) were found to be the predominant compounds in the wetland system. The study also suggests that sediment in wetland systems could serve as a sink for chlorinated paraffin pollutants.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Biochemical Research Methods
Takuya Koyama, Shun Murakami, Toshihiko Karasawa, Masato Ejiri, Katsuhiro Shiono
Summary: This study introduces a root system sampling equipment that can rapidly sample entire root specimens and measure root surface area from scanned digital images, as well as provide multidimensional visual information on the interaction between soil and physiological function of root system architecture. The method allows for fast and accurate production of whole root specimens and precise calculation of root surface area, contributing to analyzing the interaction between soil and root system physiology.
Article
Engineering, Environmental
Yu-Xiao Cheng, Jun Chen, Dan Wu, You-Sheng Liu, Yong-Qiang Yang, Lu-Xi He, Pu Ye, Jian-Liang Zhao, Shuang-Shuang Liu, Bin Yang, Guang-Guo Ying
Summary: Studies have shown that modified tidal flow constructed wetlands are effective in removing organic pollutants, especially pharmaceutical and personal care products, with significant removal rates. Mass balance analysis of 24 PPCPs revealed that microbial degradation dominates their removal, with enhanced removal efficiency through changes in dominant microorganisms.
Article
Environmental Sciences
Fadi Karam, Rachelle Haddad, Nabil Amacha, Wissam Charanek, Jerome Harmand
Summary: This study evaluates the efficiency of a constructed wetland using two aquatic plants in removing pollutants and treating polluted waters. Results demonstrate high removal efficiency for certain parameters, such as a 97% removal efficiency for nitrate. The study highlights the viability of phytoremediation as a solution for water pollution and its potential for widespread application.
Article
Plant Sciences
Dmitry D. Sokoloff, Mikhail Skaptsov, Nikolay A. Vislobokov, Sergey Smirnov, Alexander Shmakov, Margarita Remizowa
Summary: Investigating the morphological differences between cytotypes in the Acorus plants reveals a complex pattern of triploids and diploids across Asia. European triploids with the same genome size as Siberian triploids are abundant in the Ob river valley, while a population of aneuploid triploids with 33 chromosomes is found elsewhere in Siberia. The study confirms that diploids and triploids differ in leaf characteristics and fruit development, with diploids showing variability in seed development on a spadix and triploids producing uniform parthenocarpic fruits.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2021)
Article
Plant Sciences
Christophe L. Trabi, Luciano Pereira, Xinyi Guan, Marcela T. Miranda, Paulo R. L. Bittencourt, Rafael S. Oliveira, Rafael Ribeiro, Steven Jansen
Summary: The Pneumatron device is a tool for measuring gas diffusion kinetics in plant xylem. It offers a simple, low-cost, and powerful method for research. With detailed construction and operation instructions, users can accurately estimate embolism resistance of plant xylem.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Environmental Sciences
Erno Dittrich, Mihaly Klincsik, David Somfai, Anita Dolgos-Kovacs, Tibor Kiss, Anett Szekeres
Summary: This study applied a novel D-CDT model in Maple environment to investigate transport processes in horizontal subsurface flow constructed wetlands, providing more accurate results compared to the commonly used CDT model. The model demonstrated better fitting to measurement points, allowing for calculations of velocity and dispersion coefficients that were closer to actual hydraulic behavior. It also identified the main flow path in the system, showing differences of 4-99% (velocity) and 2-474% (dispersion coefficient) compared to the CDT model.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Binbin Wang, Maryam Rezvani, Kevin A. Bierlein, Lee D. Bryant, John C. Little, Alfred Wueest, Scott A. Socolofsky
Summary: We quantified lake dynamics, near-bottom turbulence, dissolved oxygen (DO) flux across the sediment-water interface (SWI), and their interactions during oxygenation in two lakes. Field observations revealed that lake dynamics were modified by bubble plumes, leading to enhanced mixing in the near-field. The interaction of bubble-induced flow with the internal density structure resulted in the downwelling of warm water into the hypolimnion in the far-field. Weak oscillating flows within the bottom boundary layer (BBL), primarily induced by seiching, were observed in both lakes. The injection of oxygen elevated water column DO and altered DO flux across the SWI. Gas transfer velocity was driven by turbulence and correlated with the bottom shear velocity. The diffusive boundary layer thickness was found to be consistent with the Batchelor length scale. Bubble plumes had limited effects on BBL turbulence, and canonical scales of turbulence emerged for time-average statistics, validating the turbulence scaling of gas transfer velocity in low-energy lakes.
WATER RESOURCES RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Yousef Alqaheem, Fajer Alswaileh
Summary: This study demonstrates that the use of enriched oxygen can reduce fuel consumption and carbon dioxide emissions at Kuwait power plants. Although the current market prices for membrane units to produce oxygen are not economical, there is potential for cost recovery if natural gas prices increase or compressor costs decrease.
Review
Plant Sciences
John T. Hancock, Tyler W. LeBaron, Jennifer May, Adam Thomas, Grace Russell
Summary: Although the use of molecular hydrogen (H-2) for enhanced plant growth and postharvest storage of crops has not been widely accepted in the UK, evidence shows that it can alleviate plant stress and slow crop senescence. The effects of H-2 treatment appear to be mediated by the alteration of plant cell antioxidant capacity, with potential benefits in agriculture if the costs are justified. Hydrogen-rich water (HRW) is considered safe and relatively easy to use, suggesting that it could potentially be widely adopted in the UK and help reduce food waste in the future.
