More Like this

1. Methylphosphonate Oxidation in Prochlorococcus Strain MIT9301 Supports Phosphate Acquisition, Formate Excretion, and Carbon Assimilation into Purines

   https://doi.org/10.1128/AEM.00289-19  

   Sosa, Oscar A.; Casey, John R.; Karl, David M.; Liu, Shuang-Jiang (July 2019, Applied and Environmental Microbiology)

   ABSTRACT The marine unicellular cyanobacterium Prochlorococcus is an abundant primary producer and widespread inhabitant of the photic layer in tropical and subtropical marine ecosystems, where the inorganic nutrients required for growth are limiting. In this study, we demonstrate that Prochlorococcus high-light strain MIT9301, an isolate from the phosphate-depleted subtropical North Atlantic Ocean, can oxidize methylphosphonate (MPn) and hydroxymethylphosphonate (HMPn), two phosphonate compounds present in marine dissolved organic matter, to obtain phosphorus. The oxidation of these phosphonates releases the methyl group as formate, which is both excreted and assimilated into purines in RNA and DNA. Genes encoding the predicted phosphonate oxidative pathway of MIT9301 were predominantly present in Prochlorococcus genomes from parts of the North Atlantic Ocean where phosphate availability is typically low, suggesting that phosphonate oxidation is an ecosystem-specific adaptation of some Prochlorococcus populations to cope with phosphate scarcity. IMPORTANCE Until recently, MPn was only known to be degraded in the environment by the bacterial carbon-phosphorus (CP) lyase pathway, a reaction that releases the greenhouse gas methane. The identification of a formate-yielding MPn oxidative pathway in the marine planctomycete Gimesia maris (S. R. Gama, M. Vogt, T. Kalina, K. Hupp, et al., ACS Chem Biol 14:735–741, 2019, https://doi.org/10.1021/acschembio.9b00024 ) and the presence of this pathway in Prochlorococcus indicate that this compound can follow an alternative fate in the environment while providing a valuable source of P to organisms. In the ocean, where MPn is a major component of dissolved organic matter, the oxidation of MPn to formate by Prochlorococcus may direct the flow of this one-carbon compound to carbon dioxide or assimilation into biomass, thus limiting the production of methane. 

   more » « less
2. Kinetics of the Topochemical Transformation of (PbSe) _m (TiSe ₂ ) _n (SnSe ₂ ) _m (TiSe ₂ ) _n to (Pb _0.5 Sn _0.5 Se) _m (TiSe ₂ ) _n

   https://doi.org/10.1021/jacs.8b10681  

   Sutherland, Duncan R.; Merrill, Devin R.; Ditto, Jeffrey; Moore, Daniel B.; Medlin, Douglas; Johnson, David C. (January 2019, Journal of the American Chemical Society)
3. (V _1–y Mo _y ) ₂ C T _x MXene Nanosheets as Electrocatalysts for Hydrogen Evolution

   https://doi.org/10.1021/acsanm.4c06029  

   Snyder, Rose M; Nguyen, Thao; Bhatt, Prajna; Riaz, Aysha A; Thakur, Pardeep K; Lee, Tien-Lin; Regoutz, Anna; Jones, Anne K; Birkel, Christina S (January 2025, ACS Applied Nano Materials)
4. Oxidative Stability of Nb _n+1 C _n T _z MXenes

   https://doi.org/10.1021/acs.jpcc.1c01064  

   Echols, Ian J.; Holta, Dustin E.; Kotasthane, Vrushali S.; Tan, Zeyi; Radovic, Miladin; Lutkenhaus, Jodie L.; Green, Micah J. (July 2021, The Journal of Physical Chemistry C)
5. Transport Properties of GdTe _{1.8– x} As _x ( x = 0, 0.04)

   https://doi.org/10.1002/ejic.202000195  

   Poddig, Hagen; Hobbis, Dean; Alzahrani, Noha; Doert, Thomas; Nolas, George S. (June 2020, European Journal of Inorganic Chemistry)