Long-distance transport of sulfur in Nicotiana tabacum

Autor:	Heinz Rennenberg, Ludwig Bergmann, Klaus Schmitz
Rok vydání:	1979
Předmět:	Methionine biology Nicotiana tabacum fungi Sulfur metabolism food and beverages chemistry.chemical_element Plant Science Glutathione biology.organism_classification Sulfur chemistry.chemical_compound chemistry Botany Genetics Phloem transport Phloem Nicotiana
Zdroj:	Planta. 147:57-62
ISSN:	1432-2048 0032-0935
Popis:	Sulfur reduction in tobacco plants is a light-enhanced process that predominantly takes place in the leaves rather than the roots. The amount of sulfate reduced in mature leaves can exceed their own requirement and enables an export of reduced sulfur, both basipetal toward the roots as well as acropetal toward the growing parts of the stem. Evidence is presented that translocation of reduced sulfur toward the roots occurs in the phloem. TLC and paper chromatography reveal that glutathione is the main transport form of reduced sulfur in tobacco plants; 67-70% of reduced (35)S was confined to glutathione, 27-30% to methionine, and 2-8% to cysteine.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39176f2041d381e74d72ea518b2f0a91 https://doi.org/10.1007/bf00384591 Zobrazit plný text záznamu Full text from SpringerLink