Article
Plant Sciences
Lyudmila E. Muravnik, Olga Kostina, Nikita L. Zaporozhets
Summary: The aim of this study was to characterize the structural and histochemical features of two types of glandular trichomes (GTs) found on the leaves and flowers of three Arnica species. The two types of GTs differ in dimensions, coloration intensity, and ultrastructural features of the cells. Phenols, terpenes, sesquiterpene lactones, and polysaccharides are present in all GTs of the studied species, but the amount and composition of these compounds vary between the different types of trichomes and organs.
Article
Plant Sciences
Jan Bures, Zbynek Simunek, Josef Psenicka, Jiri Bek, Jana Drabkova, Jana Bruthansova
Summary: A new record of a long cordaitalean branch with well-preserved anatomical features from the Kamenný Újezd locality in Czech Republic is described. The specimen comes from the lower-most part of the Whetstone Horizon and belongs to the late Duckmantian period. The branch belongs to the genus Artisia and the xylem is similar to Cordaixylon, with a phyllotaxis of 3/8.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2023)
Article
Zoology
Milos Vittori
Summary: The joint structure between the propodus and dactylus in terrestrial isopods, such as Porcellio scaber, is highly functional, with a semicircular process guiding movement and nanometer-scale texturing on sliding surfaces to reduce wear. This selective texturing may also enhance force dissipation, while eliminating small particles to improve joint efficiency and longevity.
ZOOLOGICAL LETTERS
(2021)
Article
Plant Sciences
Yongmei He, Hongru Li, Jiong Wu, Xiang Li, Yanqun Zu, Fangdong Zhan, Yuan Li
Summary: Enhanced UV-B radiation can change the interaction between crops and pathogens. The effects of enhanced UV-B radiation and Magnaporthe oryzae on rice leaf morphology, anatomy, and ultrastructure were investigated. Enhanced UV-B radiation supplied before or during M. oryzae infection significantly reduced the mycelia number of M. oryzae and alleviated the ultrastructural damages induced by the pathogen, while UV-B radiation supplied after infection had attenuated alleviation effects. The results suggest that the timing of UV-B radiation application is crucial in mitigating damages caused by M. oryzae infection on rice leaves.
Article
Entomology
Natalia R. Moyetta, Fabian O. Ramos, Jimena Leyria, Lilian E. Canavoso, Leonardo L. Fruttero
Summary: Chagas' disease is a debilitating and life-threatening disease endemic in the Americas, affecting about six to seven million people globally. Hemocytes, cells present in the circulatory system of insects and other invertebrates, play vital roles in coagulation and defense against pathogens. This study classified hemocytes of the kissing bug Dipetalogaster maxima into five types, contributing to the understanding of insect physiology and immune responses.
Article
Plant Sciences
Jun-Ho Hyung, Eun-Joo Kim, Seung-Joo Moon, Nam Seon Kang, Jaeyeon Park
Summary: A new euryhaline microalga, Tetraselmis jejuensis, adapted to supralittoral tide pools with unique morphological and chloroplast characteristics, was discovered. The SSU rDNA sequences of the isolated strains showed a distinct phylogenetic position within the Tetraselmis genus, suggesting the need for a new species classification.
Article
Plant Sciences
Xin-Yu Li, Mei-Lan Lin, Fei Lu, Xin Zhou, Xing Xiong, Li-Song Chen, Zeng-Rong Huang
Summary: Excessive copper-based agrochemicals are toxic to citrus trees, resulting in starch granules accumulation in the leaves and roots. C. grandis has a higher copper tolerance than C. sinensis.
Article
Multidisciplinary Sciences
Tilman Franke, Irina Kolotuev
Summary: Electron microscopy is crucial for imaging cellular and structural details at nanometer resolution in biology and medicine. While TEM and SEM offer different advantages in resolution, recent advancements in technology have led to automatic volume acquisition solutions like SBF-SEM and FIB-SEM. However, the inefficiency in precise localization of target areas before imaging remains a challenge. The use of lateral screening with Array Tomography in SEM provides a strategy for efficient localization of areas of interest and automated imaging of relevant sample volumes.
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2021)
Article
Plant Sciences
Josef Psenicka, Weiming Zhou, C. Kevin Boyce, Jana Votockova Frojdova, Jiri Bek, Stanislav Oplustil, Jun Wang
Summary: A new leptosporangiate fern genus, Discosoropteris, is described and two species are identified from the Duckmantian-age Kamenny Ujezd locality of the Pilsen Basin, Central Bohemia. These fossil fronds with tripinnate structure and distinct reproductive organs provide important insights into the evolution and classification of Carboniferous plants.
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
(2022)
Review
Biochemistry & Molecular Biology
Joanna Skrzydel, Dorota Borowska-Wykret, Dorota Kwiatkowska
Summary: This review focuses on the structure, assembly, and function of cuticle, with special attention to the cuticle of perianth organs. The unique characteristics of perianth cuticle, such as folded cuticle and integral continuous layer, require further investigation. Technical challenges posed by the small thickness of perianth cuticle can potentially be overcome with modern tools.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Hua Huang, Ling Wang, Diyang Qiu, Nan Zhang, Fangcheng Bi
Summary: Banana fruit is susceptible to thermal changes, with chilling injury occurring below 13 degrees C and green ripening above 25 degrees C. The study investigated the changes in surface morphology, chemical compositions of cuticle, and the expression of cuticle biosynthesis genes in banana fruit stored at low temperatures. Results showed significant alterations in surface morphology, chemical compositions of cuticle, and the gene expression related to cuticle biosynthesis due to chilling injury during storage.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Aleksandra Nazieblo, Hanna M. Merlak, Malgorzata H. Wierzbicka
Summary: Maize has a high tolerance to lead, especially in its photosynthetic tissue. The existence of bundle sheath cells in maize leaves is responsible for inhibiting the flow of lead ions into the ground tissue, thus minimizing the toxic effect of lead on photosynthesis.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Ranjan Ramasamy, Vaikunthavasan Thiruchenthooran, Tibutius T. P. Jayadas, Thampoe Eswaramohan, Sharanga Santhirasegaram, Kokila Sivabalakrishnan, Arunasalam Naguleswaran, Marilyne Uzest, Bastien Cayrol, Sebastien N. Voisin, Philippe Bulet, Sinnathamby N. Surendran
Summary: The study compared RNA-seq analysis of BW and FW Ae. aegypti, showing different mRNA levels in gut, anal papillae and other carapace tissues of fourth instar larvae (L4). Additionally, salinity-tolerant Ae. aegypti exhibited altered cuticle proteomics in L4 and changes in cuticle ultrastructure of L4 and adults.
Article
Multidisciplinary Sciences
Min-Kyeong Oak, Sungyu Yang, Goya Choi, Jun-Ho Song
Summary: The pollen of Piperales varies in size, with consistent aperture types and exine ornamentation within genera. Orbicules, minute sporopollenin granules, may be a possible ancestral characteristic of Piperales. The cluster analysis results using palynological characters are generally congruent with the known molecular phylogeny of Piperales.
SCIENTIFIC REPORTS
(2022)
Article
Biochemistry & Molecular Biology
Marcello Trucas, Sabrina Burattini, Susanna Porcu, Michela Simbula, Maria Serafina Ristaldi, Marta Anna Kowalik, Maria Pina Serra, Pietro Gobbi, Michela Battistelli, Andrea Perra, Marina Quartu
Summary: Sickle cell disease (SCD) is caused by a homozygous beta-globin gene mutation and can result in multi-organ damage and reduced life expectancy. Sickle cell trait (SCT), the heterozygous beta-globin gene mutation, has been considered benign, but recent clinical evidence suggests otherwise. This study used a mouse model to investigate tissue alterations in SCT carriers and found endothelial alterations in multiple organs, with the lung showing the most significant changes. These findings provide new insights into the histopathological modifications associated with the heterozygous beta-globin gene mutation and highlight the suitability of the Townes model for studying multiple organ involvement in SCT carriers.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Entomology
Nydia Vitale, Juan Pablo Torretta, Silvana Durante, Alicia Basilio, Diego Pedro Vazquez
Article
Plant Sciences
Marina Maria Gotelli, Beatriz Gloria Galati, Gabriela Zarlavsky, Magali Nicolau, Sofia Reposi
Article
Plant Sciences
Sofia Daniela Reposi, Marina Maria Gotelli, Juan Pablo Torretta
Summary: Catasetum fimbriatum is a dioecious species with flowers adapted to pollination by male Euglossini bees. Research on the location, histochemistry, anatomy, and ultrastructure of osmophores in pistillate and staminate flowers revealed differences in their positions, but similarities in their anatomical and ultrastructural traits. While individuals of Eufriesea auriceps and Euglossa sp. were captured in both types of flowers, it is likely that only Eufriesea auriceps pollinates this orchid species.
Article
Entomology
Juan Pablo Torretta, Alicia Mabel Basilio, Hugo Javier Marrero
Summary: Leaf cutter bees are diverse pollinators of wild and cultivated plants. They exhibit differences in nesting behavior, sex ratio, and reproductive success.
JOURNAL OF APICULTURAL RESEARCH
(2023)
Article
Plant Sciences
Adan Alberto Avalos, Hugo Javier Marrero, Maria Silvia Ferrucci, Juan Pablo Torretta
Summary: This study found that two species of Stigmaphyllon are more dependent on large pollinators for reproductive success, with pollen limitation. Changes in pollinator assemblage throughout the flowering season significantly affect reproductive success. Large pollinators play a crucial role in fruit and seed set variations according to the context of pollinators.
Article
Zoology
Juan P. Torretta, Joana P. Haedo, Hugo J. Marrero, Carlos J. E. Lamas
Review
Medicine, General & Internal
Catherine Lord, Tony Charman, Alexandra Havdahl, Paul Carbone, Evdokia Anagnostou, Brian Boyd, Themba Carr, Petrus J. de Vries, Cheryl Dissanayake, Gauri Divan, Christine M. Freitag, Marina M. Gotelli, Connie Kasari, Martin Knapp, Peter Mundy, Alex Plank, Lawrence Scahill, Chiara Servili, Paul Shattuck, Emily Simonoff, Alison Tepper Singer, Vicky Slonims, Paul P. Wang, Maria Celica Ysrraelit, Rachel Jellett, Andrew Pickles, James Cusack, Patricia Howlin, Peter Szatmari, Alison Holbrook, Christina Toolan, James B. McCauley
Summary: Autism is a globally important condition affecting individuals and families worldwide. Although awareness has increased significantly in the past 20 years, more work is needed to improve life outcomes for individuals with autism. This requires investments in practical clinical research and the establishment of social and service systems that recognize the potential for change and growth, and address the diverse and complex needs of individuals with autism and their families.
Article
Plant Sciences
Magali Nicolau, Marina Gotelli, Gabriela Zarlavsky, Beatriz Galati
Summary: This study investigated the morphology, anatomy, and ultrastructure of the floral nectary of Alphitonia excelsa, a tree endemic to Australia. The findings suggest that certain characteristics of the nectary may represent common traits with other plant species, but further research is needed to confirm this relationship. This study is of significance for plant taxonomy and evolutionary research.
BRAZILIAN JOURNAL OF BOTANY
(2022)
Article
Entomology
Juan Pablo Torretta, Sandra S. Aliscioni, Hugo J. Marrero, Adan A. Avalos
Summary: The study found that in plants of the Malpighiaceae family, the behavior of illegally collecting oil resources is as common as the legitimate collection behavior of bees, and this illegitimate collection is more common in lower latitude areas.
Article
Plant Sciences
M. Gotelli, S. Aliscioni, P. T. Kuo, J. P. Torretta
Summary: The flowers of Malpighiaceae species in the Neotropical Region are relatively uniform due to their dependence on oil-collecting bees as pollinators. However, some species of Galphimia have acquired a different floral syndrome, lacking zygomorphic flowers and with developed elaiophores. Galphimia australis retains some characteristics of oil-pollinated species while also transitioning to a different pollination syndrome with pollen as the main reward, raising questions about how these flowers ensure successful pollination.
Review
Plant Sciences
Sofia Daniela Reposi, Adan Alberto Avalos, Marina Maria Gotelli, Sandra Silvina Aliscioni, Juan Pablo Torretta
Summary: This study gathered existing information on the reproductive biology, megagametophyte development, and apomixis of Malpighiaceae species. It found limited and fragmented knowledge about the reproductive biology of these species and emphasized the need for further research on inter-population variations to understand their evolutionary traits and mechanisms of population differentiation.
PLANT SYSTEMATICS AND EVOLUTION
(2023)
Article
Entomology
Juan P. Torretta, Maria C. Lopez, Hugo J. Marrero
Summary: The study found that the syrphid communities in the highly modified Pampean region are composed of a few very abundant species and many rare or low representative species. The adult flies visited flowers of 44 species of wild and/or cultivated plants, exhibiting a generalist interaction pattern. The larvae of the most abundant species were predators and/or decomposers/aquatic filters.
REVISTA DE LA SOCIEDAD ENTOMOLOGICA ARGENTINA
(2021)
Article
Entomology
Juan P. Torretta, Joana P. Haedo, Mariana L. Allasino, Hugo J. Marrero
Summary: The exotic syrphid Eumerus strigatus is reported for the first time in Argentina, associated with onion crops in two distant sites. Monitoring of this phytophagous hover fly is proposed due to its potential risk for this important horticultural crop.
REVISTA DE LA SOCIEDAD ENTOMOLOGICA ARGENTINA
(2021)
Article
Biodiversity Conservation
A. Roig-Alsina, J. P. Torretta
Summary: This study contributes to the understanding of morphological diversity within the Chrysosarus lineage of Megachile in the Neotropics. The species in the leucografa group share characteristics with other Megachile groups that were previously classified in different subgenera. Diagnoses, redescriptions, study of type material, distributions, and illustrations are presented for the three species included in this study.
JOURNAL OF NATURAL HISTORY
(2021)