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The crane fly glycosylated triketide δ-lactone cornicinine elicits akinete differentiation of the cyanobiont in aquatic Azolla fern symbioses.
Plant Cell Environ
July 2024
Department of Biology, Utrecht University, Utrecht, The Netherlands.
The restriction of plant-symbiont dinitrogen fixation by an insect semiochemical had not been previously described. Here we report on a glycosylated triketide δ-lactone from Nephrotoma cornicina crane flies, cornicinine, that causes chlorosis in the floating-fern symbioses from the genus Azolla. Only the glycosylated trans-A form of chemically synthesized cornicinine was active: 500 nM cornicinine in the growth medium turned all cyanobacterial filaments from Nostoc azollae inside the host leaf-cavities into akinetes typically secreting CTB-bacteriocins.
View Article and Find Full Text PDFCyanobacteria Based Nanoformulation of Biogenic CuO Nanoparticles for Plant Growth Promotion of Rice Under Hydroponics Conditions.
Curr Microbiol
March 2024
Amity Institute of Biotechnology, Amity University, Maharajpura, Dang, Gwalior, India, 474005.
Synthesizing nanoparticles through a green synthesis approach is common nowadays. Cyanobacteria have attained great importance in the field of biosynthesis of nanoparticles as there is no use of toxic chemicals as reducing or capping agents for the synthesis of metal oxide nanoparticles. Micronutrient-based nano-formulations have become a topic of great interest in recent times due to their various advantageous properties and applications in agriculture.
View Article and Find Full Text PDFIsolation and Characterisation of Culturable Thermophilic Cyanobacteria from Perak Hot Springs and their Plant Growth Promoting Properties Effects on Rice Seedlings ( L.).
Trop Life Sci Res
September 2023
Department of Biological Sciences, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia.
Malaysia is home to a number of hot springs that are rich in microbial diversity including the photosynthetic cyanobacteria. Although this microbial community has been characterised based on metagenomics approach, the culturable thermophilic isolates have not been isolated and characterised extensively. Compared to the mesophiles, information on plant growth promoting (PGP) properties of these thermophiles remain largely untapped.
View Article and Find Full Text PDFEnhancement of KMnO treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity.
Ultrason Sonochem
August 2023
Environment Science and Engineering College, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing, Jiangsu 210095, China. Electronic address:
1000 kHz high-frequency ultrasound at 0.12 and 0.39 W/mL intensity was used to enhance the inactivation of suspensions of Microcystis aeruginosa cells using KMnO.
View Article and Find Full Text PDFEnvironmental factors affecting akinete germination and resting cell awakening of two cyanobacteria.
Appl Microsc
January 2023
ZION E&S CO., Ltd., Pentaplex, 66, Daehwa-Ro 106Beon-Gil, Daedeok-Gu, 1133, Daejeon, Republic of Korea.
Globally, cyanobacteria frequently cause blooms that outcompete other species in the waterbody, affecting the diversity, decreasing water exchange rates, and promoting eutrophication that leads to excessive algal growth. Here, Dolichospermum circinale (akinetes) and Microcystic aeruginosa (resting cells), were isolated from the sediment in the Uiam Dam in the North Han River and near Ugok Bridge in the Nakdong River, respectively. The morphology, germination process and rates, and growth was evaluated in different environmental conditions.
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