Article
Anatomy & Morphology
Hyeonjin Kim, Bokyung Choi, Changyoung Lee, Scott A. M. McAdam, Jin-Hyub Paik, Tae-Soo Jang
Summary: This study provides a detailed description of leaf, floral, pollen, and orbicule micromorphology of four Korean Disporum species using light and scanning electron microscopy. The presence of orbicules and their taxonomic implications in Korean Disporum species are described for the first time, and phylogenetically informative characters are identified to improve understanding of the systematic relationships of Korean species in the genus Disporum.
MICROSCOPY RESEARCH AND TECHNIQUE
(2021)
Article
Anatomy & Morphology
Bokyung Choi, Yeojin Hwang, Scott A. M. Mcadam, Tae-Soo Jang
Summary: A comparative study of leaf micromorphological characteristics in Korean Ajuga species was conducted using light microscopy and scanning electron microscopy. The research found considerable diversity in epidermal and stomatal anatomy across the species, with different types of stomatal complexes and various glandular trichomes. The study highlights the taxonomic usefulness of trichome type, epidermal cell shape, and stomatal morphology for species identification.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Plant Sciences
Mariela R. Michel, Mayra Aguilar-Zarate, Romeo Rojas, Guillermo Cristian G. Martinez-Avila, Pedro Aguilar-Zarate
Summary: The objective of this study was to optimize the microencapsulation conditions of neem leaf extracts for biocontrol of Tenebrio molitor. The complex coacervation method was used for encapsulation, and the pH, pectin, and whey protein isolate were considered as independent factors. The statistical analysis revealed that pH had the highest influence on microencapsulation, followed by pectin and whey protein isolate. The optimal microencapsulation conditions were predicted as pH 3, pectin 6% w/v, and whey protein isolate 1% w/v.
Article
Chemistry, Physical
Linye Zhu, Shuntaro Ida, Georg Hasemann, Manja Krueger, Kyosuke Yoshimi
Summary: Mo-Si-B near-eutectic alloys were prepared by arc-melting or crucible-free zone-melting methods. Directionally solidified alloy showed an increase in the volume fraction of eutectic cells compared to arc-melted alloy, with well-aligned and rod-shaped Moss and T2 phases. Different growth orientations of phases were observed in the two types of alloys, with the Mo3Si matrix showing a weak preference in orientation along the solidification direction.
Article
Plant Sciences
Bernd Zechmann, Stefan Moestl, Guenther Zellnig
Summary: Focused ion beam scanning electron microscopy (FIB-SEM) and serial sectioning transmission electron microscopy (ssTEM) are powerful tools for the 3D reconstruction and volumetric extraction of plant cells, and there are differences between the two methods.
Article
Agronomy
Jiyu Chen, Jing Gao, Qi Wang, Xianming Tan, Shenglan Li, Ping Chen, Taiwen Yong, Xiaochun Wang, Yushan Wu, Feng Yang, Wenyu Yang
Summary: Blue and red light are important light signals for regulating stomatal development and leaf structure. This study investigated the response of stomatal and leaf traits in soybeans to blue and red light at two light intensities. The results showed that stomatal size remained unchanged under blue light, while stomatal density, specific leaf weight, and maximum stomatal conductance were unaffected by the decrease in light intensity under red light. These findings suggest that stomatal density and specific leaf weight are regulated by blue light, while stomatal size is highly sensitive to red light. Furthermore, specific leaf weight and stomatal density had the highest contribution rates to maximum stomatal conductance. Overall, these results indicate that long-term exposure to blue light enhances maximum stomatal conductance through the synergistic promotion of specific leaf weight and stomatal density.
Article
Chemistry, Physical
Masaki Tahara, Kazuya Hasunuma, Hideki Hosoda
Summary: This study investigated the decomposition process of the isothermal alpha '' phase in beta-Ti alloys, and found that the resulting alpha + beta dual phase inherited the microstructural characteristics of the alpha ''(iso) phase. The research results indicate the existence of a strict variant selection rule between the decomposed alpha and beta phases, with a specific variant combination observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Ryan Lane, Anouk H. G. Wolters, Ben N. G. Giepmans, Jacob P. Hoogenboom
Summary: We developed a 3D image acquisition and reconstruction pipeline that integrates widefield fluorescence microscopy with scanning electron microscopy, overcoming the limitations of slow acquisition rates and difficulty in providing targeted biological information. By using cathodoluminescent markers, we achieved high precision EM-FM overlay. Our proof-of-concept on immunolabelled serial sections of tissues demonstrated expedited acquisition times and reduced data burden.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2022)
Article
Plant Sciences
Riccardo Fontana, Anna Caproni, Mariaconcetta Sicurella, Stefano Manfredini, Anna Baldisserotto, Peggy Marconi
Summary: In this study, Moringa oleifera leaf extracts were used to investigate their effects on the biofilm formation of X. campestris pv. campestris. The results showed that the extracts and individual phenols could inhibit the growth of biofilm on abiotic surfaces, and the activity of the whole phytocomplex was higher than that of individual phenols. Moreover, the extracts also showed significant effects on cabbage leaves in vivo, unblocking the xylem and suggesting potential for black rot control.
Article
Plant Sciences
Zhuang Xiong, Zhigang Dun, Yucheng Wang, Desheng Yang, Dongliang Xiong, Kehui Cui, Shaobing Peng, Jianliang Huang
Summary: Stomatal morphology plays an important role in regulating leaf gas exchange and photosynthetic efficiency under fluctuating light conditions. Smaller and denser stomata lead to faster stomatal response to light fluctuations but lower intrinsic water use efficiency. Stomatal morphology has less impact on stomatal conductance, and there is minimal correlation between steady-state and non-steady-state stomatal conductance among different genotypes. These findings highlight the significance of stomatal morphology in optimizing photosynthetic efficiency and plant growth under fluctuating light.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemical Research Methods
Tong Xin, Yanan Lv, Haoran Chen, Linlin Li, Lijun Shen, Guangcun Shan, Xi Chen, Hua Han
Summary: This article proposes a new method for serial section registration using an unsupervised optical flow network to measure feature similarity and eliminate nonlinear deformation. The optical flow network is also used to estimate and compensate for cumulative registration error, enabling the reconstruction of biological tissue structures. Experimental results demonstrate that this method effectively improves the spatial continuity of serial sections and enhances the accuracy of registration and reconstruction for biological tissue structures.
Article
Materials Science, Multidisciplinary
Jeffrey M. Wheeler
Summary: Meteorites have a unique microstructure called the Widmanstatten structure, which was mapped using mechanical phase mapping in the Taza meteorite to statistically determine properties of different phases. Five microstructural phases were identified and characterized, with mechanical phase maps showing superior contrast in two phases compared to EDX measurements.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Chemistry, Physical
A. Coyne-Grell, J. Blaizot, S. Rahimi, I. Violatos, S. Nouveau, C. Dumont, A. Nicolay, N. Bozzolo
Summary: This study investigates the recrystallization mechanisms in different grain populations of the Ni-based superalloy AD730. The results show that the local microstructure affects the operative recrystallization mechanism, leading to different mechanisms in the deformed and recrystallized regions. The interaction of recrystallization with precipitates plays a central role in dynamic recrystallization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Aneta Wardak, Witold Chrominski, Anna Reszka, Dominika Kochanowska, Marta Witkowska-Baran, Malgorzata Lewandowska, Andrzej Mycielski
Summary: This study presents a defect analysis in Cd and Te inclusion regions within Bridgman-grown Cd0.95Mn0.05Te crystals for nuclear detectors. Contrary to Cd inclusions causing microcracks, Te inclusions do not generate defects but induce higher stresses. The higher stress from Te inclusions has a smaller impact on charge carrier transport in detectors compared to Cd inclusions, as confirmed by mu tau product measurements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
Rong Huang, Qing Tian, Yue Zhang, Zhini Chen, Yonghua Wu, Zizhen Li, Zebin Wen
Summary: This study investigated the effect of environment and leaf microstructure on particulate matter retention in 10 plant species in four urban areas. The findings showed that both the environment and leaf microstructure significantly influenced PM retention, and different plant species exhibited varying abilities to retain PM in different environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Plant Sciences
Bokyung Choi, Jangseung Ryu, Tae-Soo Jang
Summary: This study used scanning electron microscopy to describe the pollen morphology of Korean Iris. The observed pollen micromorphological characters, including size, shape, and exine ornamentation, enabled species distinction and taxonomic delimitation. The pollen morphological data presented in this study are of systematic significance to Korean Iris species.
Article
Multidisciplinary Sciences
Bokyung Choi, Inkyu Park, Soonku So, Hyeon-Ho Myeong, Jangseung Ryu, Yu-Eun Ahn, Kyu-Chan Shim, Jun-Ho Song, Tae-Soo Jang
Summary: This study compared the complete plastid genome sequences and micromorphological features of Iris ruthenica Ker Gawl. and I. uniflora Pall. ex Link, and identified molecular markers for their discrimination. The phylogenetic analysis showed their close relationship, and the comparison of plastomes and micromorphological features provided valuable information for understanding their taxonomic and evolutionary relationships.
SCIENTIFIC REPORTS
(2022)
Article
Cell Biology
Young -Min Choi, Bokyung Choi, Tae -Soo Jang
Summary: Juncus L. is a genus of herbs with approximately 310 species globally, but less commonly found in the tropics. This study presents detailed information on chromosome numbers from 36 individuals of 10 Korean Juncus taxa, revealing variations in chromosome numbers with no systematic relevance. The study suggests that this chromosome number variation could provide additional evidence for morphological diversification.
Article
Biochemistry & Molecular Biology
Inkyu Park, Bokyung Choi, Hanna Weiss-Schneeweiss, Soonku So, Hyeon-Ho Myeong, Tae-Soo Jang
Summary: This study conducted comparative analyses on the karyotypes of three Iris species in Korea, with an emphasis on the number and localization of 5S and 35S rDNA loci using FISH. The chloroplast genomes of the same individuals were also sequenced and compared. The results provide important insights into the origin of the progenitor species and the genomes of Iris series Chinenses.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Pavel Neumann, Ludmila Oliveira, Tae-Soo Jang, Petr Novak, Andrea Koblizkova, Veit Schubert, Andreas Houben, Jiri Macas
Summary: The transition from monocentric to holocentric organization in Cuscuta was associated with loss or truncation of kinetochore-related genes, disruption of centromeric localization of kinetochore proteins, and degeneration of the spindle assembly checkpoint. This indicates that holocentric Cuscuta species lack a standard kinetochore and do not employ the SAC to control microtubule attachment to chromosomes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Plant Sciences
Hyeonjin Kim, Bokyung Choi, Changyoung Lee, Jin-Hyub Paik, Chang-Gee Jang, Hanna Weiss-Schneeweiss, Tae-Soo Jang
Summary: The study found that differentiation in genome size and chromosome number is not necessarily correlated with morphological differentiation of cytotypes.
Article
Plant Sciences
Bokyung Choi, Marco F. Duretto, Suk-Pyo Hong
Summary: The Eriostemon-Phebalium clade is a group of Rutaceae plants with approximately 200 species distributed in Australia, New Caledonia, New Hebrides, New Zealand, and New Guinea. While DNA sequence analyses confirm the monophyletic nature of the group, the taxonomy within the clade remains uncertain. This study explores the potential of seed morphological traits for species identification and highlights their usefulness in systematic research.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Plant Sciences
Hye-Joo Byun, Tae -Soo Jang
Summary: A comprehensive micromorphological study of the Korean woodrush was conducted, analyzing leaf and pistil characteristics. The study revealed important diagnostic criteria for distinguishing between different species within the Korean Luzula genus, providing valuable information for taxonomic classification.
Article
Anatomy & Morphology
Bokyung Choi, Yeojin Hwang, Scott A. M. Mcadam, Tae-Soo Jang
Summary: A comparative study of leaf micromorphological characteristics in Korean Ajuga species was conducted using light microscopy and scanning electron microscopy. The research found considerable diversity in epidermal and stomatal anatomy across the species, with different types of stomatal complexes and various glandular trichomes. The study highlights the taxonomic usefulness of trichome type, epidermal cell shape, and stomatal morphology for species identification.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
