Article
Microbiology
Stacey R. Goldberg, Brad A. Haltli, Hebelin Correa, Russell G. Kerr
Summary: The bacterium RKSG073T isolated from Aplysina fistularis off the coast of San Salvador showed optimal growth conditions at 30-37 degrees C, pH 6-7, and with 2-3 % NaCl. Phylogenetic analysis placed it in a clade with its closest relative Aestuariispira insulae AH-MY2T. Based on its distinctiveness, a novel genus and species Curvivirga aplysinae gen. nov., sp. nov. is proposed for RKSG073T.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Maria Orfanoudaki, Anja Hartmann, Mostafa Alilou, Naida Mehic, Marcel Kwiatkowski, Karin Joehrer, Hieu Nguyen Ngoc, Andreas Hensel, Richard Greil, Markus Ganzera
Summary: The study focused on investigating the chemical compositions of two Mediterranean demosponges, isolating 20 pure secondary metabolites with interesting biological activities, including 5 new natural products. These compounds were found to have diverse chemical scaffolds and exhibited cytotoxic properties in multiple cell lines, with one compound showing particularly promising activities.
Article
Chemistry, Medicinal
Izabela Dziedzic, Alona Voronkina, Martyna Pajewska-Szmyt, Martyna Kotula, Anita Kubiak, Heike Meissner, Tomas Duminis, Hermann Ehrlich
Summary: Chitin, a polysaccharide found in sponges, plays a crucial role in providing mechanical stability to their unique 3D-structured skeletons. By using a 1% LiOH solution and sonication, researchers were able to extract multilayered, tube-like chitin from cultivated Aplysina aerophoba sponge skeletons. Surprisingly, this extraction method not only isolated chitinous scaffolds but also resulted in their dissolution and the formation of amorphous-like matter. Evaluation of the chitin revealed no differences between the sponge-derived chitin and chitin derived from arthropods, suggesting that lithium ions are responsible for the formation of LiBr and the dissolution of chitin in the sponge.
Article
Chemistry, Medicinal
Marta Carnovali, Maria Letizia Ciavatta, Ernesto Mollo, Vassilios Roussis, Giuseppe Banfi, Marianna Carbone, Massimo Mariotti
Summary: With longer life expectancy, there has been an increased focus on discovering new healing agents for age-related disorders, including bone diseases. Marine organisms, known for their diverse bioactive metabolites, are being recognized as potential sources for therapeutic options. Additionally, the zebrafish model has proven to be an efficient and cost-effective platform for screening molecules that regulate bone development. In this study, the effects of the crude acetonic extract from the marine sponge Aplysina aerophoba and its bromotyrosine components on bone development were evaluated using zebrafish larvae. The results led to the identification of aerophobin-1 as a promising candidate for regenerative medicine and a potential novel therapeutic option for osteoporosis treatment.
Article
Microbiology
Lingping Zhuang, Haiyue Pang, Li Xu, Dan Chen
Summary: A novel bacterial strain, designated as HN-E44(T), isolated from a marine sponge in Yangpu Bay, Hainan, PR China, exhibited distinctive morphological features and growth conditions. Phylogenetic analysis showed it formed a separate cluster with the closest type strain, sharing 93.6% sequence similarity, suggesting it represents a new species within the family Flavobacteriaceae.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Mimi Zhang, Qianqian Song, Jin Sang, Zhiyong Li
Summary: A novel bacterial strain, WHS-Z9T, was isolated from a marine sponge collected in Weihai. The strain is motile, short-rod-shaped, and light yellow-pigmented. It has optimal growth conditions at temperatures of 20°C, pH 8.5, and 4% NaCl concentration. Phylogenetic analysis based on the 16S rRNA gene sequence showed that WHS-Z9T is closely related to Brevibacterium limosum o2T. This study proposes classifying WHS-Z9T as a new species of the genus Brevibacterium, named Brevibacterium spongiae sp. nov.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Environmental Sciences
Thamires Martins, Claudia Schinke, Sonia C. N. Queiroz, Patricia A. de C. Braga, Fabio S. P. Silva, Itamar S. Melo, Felix G. R. Reyes
Summary: The fungus Acremonium camptosporum associated with the marine sponge Aplysina fulva was found to produce antibacterial secondary metabolites. Analysis of mass spectra data revealed the presence of cytotoxic compounds, indicating a close association between the sponge and the fungus with its compounds.
Article
Microbiology
Chi Young Hwang, Sung Man Seo, Eui-Sang Cho, Young-Do Nam, So-Lim Park, Seong-Il Lim, Myung-Ji Seo
Summary: In this study, a novel bacterial strain MBLB1776(T) was isolated from marine mud in Uljin, the Republic of Korea. The strain was identified as a new species within the genus Paenibacillus, named Paenibacillus aurantius sp. nov. It was found that MBLB1776(T) produced carotenoid pigments, giving the cells an orange color.
Article
Microbiology
Qunfang Yu, Yanxiang Qi, Jinji Pu
Summary: Strain YQF-2(T) is a novel bacterium isolated from coastal sediment in Jiangsu Province, belonging to the genus Rheinheimera. It showed closest phylogenetic relationship with Rheinheimera pacifica KMM 1406(T) and can be considered as a new species named Rheinheimera lutimaris sp. nov.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Qi Qin, Lin Jiang, Die Zhang, Lei Li, Hou-Wen Lin
Summary: A novel actinomycete strain, Actinomadura spongiicola sp. nov, was isolated from a marine sponge collected in the South China Sea.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Soo-Bin Kim, Jin-Sook Park
Summary: A new bacterium of the genus Parashewanella, named Parashewanella hymeniacidonis sp. nov, was isolated from a marine sponge in Korea. This bacterium is Gram-negative, flagella-bearing, and aerobic, and shows growth in a wide range of pH, salt concentration, and temperature. The phylogenetic and chemotaxonomic characteristics support its classification as a novel species.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Mimi Zhang, Qianqian Song, Jin Sang, Zhiyong Li
Summary: A novel strain of bacteria, PHS-Z21T, was isolated from a marine sponge in the Philippines. It is a Gram-stain-negative, non-motile, pale-yellow-pigmented, short rod-shaped bacterium. The strain shows high similarity to other Qipengyuania species based on its 16S rRNA gene sequence. The phenotypic and phylogenetic data suggest that it represents a new species of the genus Qipengyuania.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Microbiology
Li Liao, Shi-Yuan Su, Yan-Jiao Zhang, Huan Liu, Xi-Ying Zhang, Jin Zhang, Jiao Wen, Bo Chen, Yong Yu
Summary: Strain HQ09(T), a novel species of the genus Pseudopuniceibacterium, was isolated from a marine sponge off the coast of West Antarctica. It showed strong adaptability to temperature, pH, and salinity, grew optimally at 25 degrees C, pH 7.0, and 2% NaCl, with distinct genetic and phenotypic differences from the type strain of Pseudopuniceibacterium sediminis.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Minji Kim, Ki-Eun Lee, In-Tae Cha, Soo-Je Park
Summary: Strain M1(T) is a Gram-stain-negative, facultatively anaerobic bacterium belonging to the genus Draconibacterium, with distinct characteristics compared to other species within the genus.
CURRENT MICROBIOLOGY
(2021)
Article
Chemistry, Medicinal
Kuei-Hung Lai, Zheng-Hao Huang, Mohamed El-Shazly, Bo-Rong Peng, Wen-Chi Wei, Jui-Hsin Su
Summary: Marine sponges of the genera Geodia, Jaspis, Rhabdastrella, and Stelletta are chemically characterized by a variety of isomalabaricane triterpenes. Two new isomalabaricane-type triterpenes rhabdastin H and rhabdastin I were identified, showing anti-proliferative activities against leukemic cells. These compounds exhibit unique structural features with the only reported tetrahydrofuran functionality among marine-derived isomalabaricanes.
Article
Microbiology
Rui Xu, Xiaoxu Sun, Max M. Haggblom, Yiran Dong, Miaomiao Zhang, Zhaohui Yang, Enzong Xiao, Tangfu Xiao, Pin Gao, Baoqin Li, Weimin Sun
Summary: The Acidobacteriia are adapted to metal-rich environments and have the potential to transform metals like arsenic, mercury, and chromium through metabolic pathways. They may also possess the capability to alleviate acidic and metal stress. This discovery suggests that the ability for metal transformation could be widespread among Acidobacteriia members.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Environmental Sciences
Muhammad Usman Ghani, Hafiz Naeem Asghar, Abdullah Niaz, Zahir Ahmad Zahir, Muhammad Farrakh Nawaz, Max M. Haggblom
Summary: The study evaluated bacterial strains capable of promoting plant growth and degrading the pesticide profenofos, showing that these strains can degrade over 90% of profenofos and significantly increase plant growth. This approach of using bacteria to remediate pesticide-contaminated soils shows promising results in improving soil health and food quality.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2022)
Article
Environmental Sciences
Huaqing Liu, Jian Zhang, Ximing Yu, Huijun Xie, Max Haggblom, Shuang Liang, Zhen Hu
Summary: Vertical flow constructed wetlands (VF CWs) are widely used for treating eutrophic water due to their economic and ecological advantages. Accumulation of inorganic particles in these wetlands significantly improves phosphorus and nitrogen removal efficiencies through adsorption, plant uptake, and microbial degradation. Concentrated nutrients in the rhizosphere enhance plant growth and bacterial diversity, contributing to the enhancement of water treatment efficiency.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Yongbin Li, Lifang Guo, Max M. Haggblom, Rui Yang, Mengyan Li, Xiaoxu Sun, Zheng Chen, Fangbai Li, Xianfa Su, Geng Yan, Enzong Xiao, Haihan Zhang, Weimin Sun
Summary: Serratia spp. bacteria have been found to perform biological nitrogen fixation (BNF) by oxidizing arsenic (As) in addition to using reduced sulfur (S). This discovery suggests that As-dependent BNF may be widespread in As-rich habitats and is a common metabolic trait in Serratia spp.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Ecology
Xiaoxu Sun, Tianle Kong, Fangbai Li, Max M. Haggblom, Max Kolton, Ling Lan, Maggie C. Y. Lau Vetter, Yiran Dong, Peng Gao, Joel E. Kostka, Baoqin Li, Weimin Sun
Summary: This study discovered a novel biogeochemical process, S oxidation coupled to Sb(V) reduction, mediated by Desulfurivibrio bacteria through enzymatic reactions. Desulfurivibrio showed a high relative abundance in Sb mine tailings. The metabolic potential encoded by non-canonical enzymes was found in the Desulfurivibrio genomes retrieved from metal-contaminated sites.
Article
Microbiology
Isabel Horna-Gray, Nora A. Lopez, Youngbeom Ahn, Brandon Saks, Nathaniel Girer, Ute Hentschel, Peter J. McCarthy, Lee J. Kerkhof, Max M. Haggblom
Summary: Desulfoluna spp. is a cosmopolitan group of dehalogenating bacteria distributed in sponges containing organohalides. The association between sponges and their associated microbiota is influenced by the organohalogen chemistry of the sponge. The production of organobromine secondary metabolites in sponges may serve as a chemical defense, and Desulfoluna spp. and related strains are responsible for dehalogenation in sponges.
FEMS MICROBIOLOGY ECOLOGY
(2022)
Article
Engineering, Environmental
Huaqing Liu, Rui Xu, Max M. Haggblom, Jian Zhang, Xiaoxu Sun, Peng Gao, Jiayi Li, Wangwang Yan, Wenlong Gao, Pin Gao, Guoqiang Liu, Haihan Zhang, Weimin Sun
Summary: The use of immobile iron-rich particles (IIRP) can enhance arsenic retention and regulate its biotransformation in treatment wetlands (TWs). TWs with IIRP achieved a stable arsenic removal efficiency over a long period of time, while no removal or release of arsenic was observed in TWs without IIRP. IIRP provide additional adsorption sites and increase the stability of adsorbed arsenic.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
Miaomiao Zhang, Max Kolton, Max M. Haggblom, Xiaoxu Sun, Ke Yu, Bin He, Zaijian Yuan, Yiran Dong, Xianfa Su, Zhenyu Chen, Hui Li, Tangfu Xiao, Enzong Xiao, Weimin Sun
Summary: This study observed the coupling of anaerobic ammonium oxidation with As(V) reduction, known as Asammox, and identified the responsible bacteria in As-contaminated paddy soil. The discovery of Asammox expands the understanding of N and As biogeochemical cycling and provides a proof-of-concept for investigating anaerobic ammonium oxidation coupled with metal(loid)s reduction.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Environmental Sciences
Emre Babur, Turgay Dindaroglu, Subhan Danish, Max M. Haggblom, Ekrem Ozlu, Gafur Gozukara, Omer Suha Uslu
Summary: This study used interpolation methods to investigate the impact of wildfire on soil organic carbon, microbial biomass carbon concentrations, and soil quality indices in a red pine forest. The results showed that wildfire increased soil carbon stocks, total nitrogen, pH, and qCO2, but decreased microbial biomass carbon and nitrogen.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Geng Yan, Xiaoxu Sun, Yiran Dong, Wenlong Gao, Pin Gao, Baoqin Li, Wangwang Yan, Haihan Zhang, Mohsen Soleimani, Bei Yan, Weimin Sun, Max M. Haggblom
Summary: This study identified microorganisms responsible for vanadate reduction in contaminated river sediments and predicted their metabolic mechanisms using DNA-stable isotope probing and metagenomic-binning analysis.
Article
Microbiology
Yongbin Li, Rui Yang, Max M. Haggblom, Mengyan Li, Lifang Guo, Baoqin Li, Max Kolton, Zhiguo Cao, Mohsen Solemani, Zheng Chen, Zhimin Xu, Wenlong Gao, Bei Yan, Weimin Sun
Summary: This study found that diazotrophic endophytes have the potential to promote the growth and colonization of pioneer plant Bidens pilosa in mine tailings, which can contribute to the phytoremediation of mine tailings.
Article
Microbiology
Kevin P. Dillon, Valdis Krumins, Aishwarya Deshpande, Lee J. Kerkhof, Gediminas Mainelis, Donna E. Fennell
Summary: The growth and activity of methanotrophic bacteria in the air have been investigated in this study. Results showed that certain conditions can support their growth and synthesis of new DNA in the airborne state. Humidity and low biomass levels were found to be limiting factors for bacterial growth in the air. This study expands our knowledge about the potential activities and functions of bacteria in the atmospheric microbiome.
MICROBIOLOGY SPECTRUM
(2022)
Article
Plant Sciences
Timothy J. Waller, Max M. Haggblom, Peter V. Oudemans
Summary: Aqueous extracts from flowers have a stimulating effect on the germination, secondary conidiation, and appressorial formation of fruit rotting fungi. Even raindrops passing over flowers can accumulate sufficient activity to influence the infectivity of these fungi. Nonpolar components of the cuticle were found to have high levels of bioactivity. Specific fatty acids and fatty acid methyl esters were identified as bioactive components, stimulating appressorial formation and secondary conidiation. This study emphasizes the importance of the bloom period for infection and suggests that the presence of specific fatty acids may affect the host susceptibility.
Meeting Abstract
Sport Sciences
Candace R. Longoria, Olufunmilola Ibironke, Lee J. Kerkhof, Marko Oydanich, Xiaoyang Su, Eric Chiles, Stephen F. Vatner, Sara C. Campbell
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2022)