WebJul 28, 2024 · Plants activate the S assimilatory process and the degradation of GSH and GSLs, and repress GSL biosynthesis. Sulfate uptake is activated by low S conditions via a myriad of activation processes Sulfate is the starting metabolite for S assimilation, so sulfate acquisition is critical for plant life. WebPlants take up sulfate in their roots and reduce it to sulfide (see sulfur assimilation). However, some Brassica species are able to assimilate atmospheric sources of sulfur in …
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WebSep 16, 2004 · Sulfur represents the ninth and least abundant essential macronutrient in plants, preceded by carbon, oxygen, hydrogen, nitrogen, potassium, calcium, magnesium, and phosphorus. The dry matter of sulfur in plants is only about one-fifteenth of that of nitrogen. Both sulfur and nitrogen are necessary to be assimilated into organic metabolites. WebJun 1, 1998 · Plants assimilate sulfur from the soil as sulfate (SO42–) via a set of transport proteins that show differential affinity for sulfate and by passive intake of sulfur dioxide (SO2) and hydrogen sulfide (H2S) from the atmosphere (Saito, 2000). A suite of three enzymes activate sulfate and ultimately reduce it to sulfide (S2–) (Bick and ... competitive bidding in high-risk situations
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In bacteria and fungi, the sulfur assimilation pathway is similar to that in plants, where inorganic sulfate is reduced to sulfide, and then incorporated into cysteine and other sulfur-containing compounds. Bacteria and fungi can absorb inorganic sulfate from the environment through a sulfate transporter, which is regulated … See more Sulfur assimilation is the process by which living organisms incorporate sulfur into their biological molecules. In plants, sulfate is absorbed by the roots and then be transported to the chloroplasts by the transipration stream … See more Sulfate is taken up by the roots that have high affinity. The maximal sulfate uptake rate is generally already reached at sulfate levels of 0.1 mM and lower. The uptake of sulfate by the roots … See more Cysteine Sulfide is incorporated into cysteine, catalyzed by O-acetylserine (thiol)lyase, with O-acetylserine as substrate. The synthesis of O-acetylserine is catalyzed by serine acetyltransferase and together with O-acetylserine … See more The rapid economic growth, industrialization and urbanization are associated with a strong increase in energy demand and emissions of air pollutants including sulfur dioxide (see also acid rain) and hydrogen sulfide, which may affect plant See more Even though root plastids contain all sulfate reduction enzymes, sulfate reduction predominantly takes place in the leaf chloroplasts. The reduction of sulfate to sulfide occurs … See more Unlike in plants, animals do not have a pathway for the direct assimilation of inorganic sulfate into organic compounds. In animals, the primary source of sulfur is dietary methionine, an essential amino acid that contains a sulfur atom. Methionine is first … See more • Plant nutrition • Sulfonucleotide reductase • Sulfur metabolism See more WebSep 30, 1997 · Plants assimilate inorganic sulfate into Cys, the first sulfur-containing amino acids, and various sulfur-containing secondary metabolites. Thus, plants serve as … WebDec 14, 2014 · 1 Answer Sorted by: 2 Plants have sulfate transporters which they use to assimilate sulfur. Since sulfate is the conjugate base of sulfuric acid, this could be … competitive bid contracts