Results 41 to 50 of about 11,005 (181)

Natural Product Gene Clusters in the Filamentous Nostocales Cyanobacterium HT-58-2

Life, 2021
Cyanobacteria are known as rich repositories of natural products. One cyanobacterial-microbial consortium (isolate HT-58-2) is known to produce two fundamentally new classes of natural products: the tetrapyrrole pigments tolyporphins A–R, and the ...
Xiaohe Jin, Eric S. Miller, Jonathan S. Lindsey   +2 more
doaj   +1 more source

Beyond a dual role: how Purpureocillium lilacinum reprograms citrus metabolism for integrated biocontrol and growth promotion

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Plants harbor complex microbial communities that are fundamental to their health and productivity. Among them, endophytic fungi such as Purpureocillium lilacinum establish mutualistic associations, offering dual benefits as plant growth promoters and biocontrol agents.
Sana Bouzembila, Kamel Charaabi, Haytham Hamden, Salma Fadhel, Nesrine Tanfouri, Meriem Msaad Guerfali   +5 more
wiley   +1 more source

Crystal structure of [5-n-butyl-10-(2,5-dimethoxyphenyl)-2,3,7,8,13,12,17,18-octaethylporphyrinato]nickel(II)

Acta Crystallographica Section E: Crystallographic Communications, 2015
The asymmetric unit of the title nickel(II) porphyrin, [Ni(C48H60N4O2)], contains one independent molecule. The average Ni—N bond length is 1.917 (13) Å.
Keith J. Flanagan, Ebrahim M. Mothi, Lisa Kötzner, Mathias O. Senge   +3 more
doaj   +1 more source

Persistence of PPO mutations and dynamics of Amaranthus palmeri resistance to PPO‐inhibitor herbicides in a decade

Pest Management Science, EarlyView.
Over a decade, Arkansas Amaranthus palmeri populations maintained resistance to PPO‐inhibiting herbicides. PPO2 mutations relate to shifts in herbicide resistance patterns over time. Abstract BACKGROUND Amaranthus is a highly troublesome weed genera globally.
Prakriti Dhaka, Gulab Rangani, Aimone Porri, Ingo Meiners, Robert C Scott, Nilda Roma‐Burgos   +5 more
wiley   +1 more source

Interdependence of tetrapyrrole metabolism, the generation of oxidative stress and the mitigative oxidative stress response

Redox Biology, 2015
Tetrapyrroles are involved in light harvesting and light perception, electron-transfer reactions, and as co-factors for key enzymes and sensory proteins.
Andrea W.U. Busch, Beronda L. Montgomery
doaj   +1 more source

Tolyporphins–Exotic Tetrapyrrole Pigments in a Cyanobacterium—A Review

Molecules, 2023
Tolyporphins were discovered some 30 years ago as part of a global search for antineoplastic compounds from cyanobacteria. To date, the culture HT-58-2, comprised of a cyanobacterium–microbial consortium, is the sole known producer of tolyporphins ...
Kathy-Uyen Nguyen, Yunlong Zhang, Qihui Liu, Ran Zhang, Xiaohe Jin, Masahiko Taniguchi, Eric S. Miller, Jonathan S. Lindsey   +7 more
doaj   +1 more source

Prebiotic aqueous reactions catalyzed by native nickel without hydrogen

The FEBS Journal, EarlyView.
Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia, Max Brabender, William F. Martin   +2 more
wiley   +1 more source

π‐Enlargement in Porphyrin Macrocycles at Interfaces

Angewandte Chemie, Volume 138, Issue 30, 20 July 2026.
On‐surface synthesis of a 20‐π free‐base expanded porphyrin, by depositing onto a hot Ag(111) substrate an 18‐π free‐base precursor equipped with ‐CF3 functional groups ABSTRACT Porphyrins are essential heteroatomic macrocycles, fundamental to both biological systems and advanced technology.
Ana Barragán, Elena Pérez‐Elvira, Alba García‐Frutos, Diego J. Vicent, Pingo Mutombo, Koen Lauwaet, José M. Gallego, Rodolfo Miranda, José I. Urgel, Aurelio Gallardo, Nazario Martín, David Écija   +11 more
wiley   +2 more sources

Localization of heme biosynthesis in the diatom Phaeodactylum tricornutum and differential expression of multi-copy enzymes

Frontiers in Plant Science
Heme is essential for all organisms. The composition and location of the pathway for heme biosynthesis, have been influenced by past endosymbiotic events and organelle evolution in eukaryotes.
Shun-Min Yang, Shun-Min Yang, Ansgar Gruber, Ansgar Gruber, Kateřina Jiroutová, Jitka Richtová, Marie Vancová, Marie Vancová, Martina Tesařová, Petra Masařová, Richard G. Dorrell, Miroslav Oborník, Miroslav Oborník   +12 more
doaj   +1 more source

GmDOF3.1‐GmCPX Module Regulates Nodulation and Nitrogen Fixation Abilities in Soybean

Plant Biotechnology Journal, EarlyView.
ABSTRACT Soybean nodule nitrogen fixation is very important, which can provide a large amount of nitrogen supply for its own growth and that of other crops, but the mechanism is largely unclear. In the present study, a coproporphyrinogen oxidase gene, GmCPX, was identified to facilitate soybean nodulation and nitrogen‐fixation under the regulation of ...
Xinzhu Xing, Zhanwu Yang, Zhenqi Shao, Hui Du, Hua Zhang, Huantao Zhang, Xiaobo Huo, Wenlong Li, Youbin Kong, Xihuan Li, Caiying Zhang   +10 more
wiley   +1 more source