Ferritin2 gene in paraquat-susceptible and resistant biotypes of horseweed Conyza canadensis (L.) Cronq.
Ferritins, the multimeric iron storage proteins, are the main regulators of the cellular level of uncomplexed iron. Ferritins are encoded by small gene families and expressed differentially under various developmental conditions depending on iron availability, effect of hormones or oxygen radical generating agents. In the present work the primary structure of the ferritin2 gene from resistant and susceptible biotypes of horseweed Conyza canadensis was determined. This gene was found to exhibit great similarity and possess all the structural characteristics of known plant ferritin2 genes. The C. canadensis ferritin2 genes had identical primary structure in the two biotypes and were upregulated by paraquat (Pq) in both susceptible and resistant plants. The enhanced expression level was probably connected with defence reactions in the plants after Pq treatment.
Soós
Vilmos
V
Department of Plant Physiology and Molecular Plant Biology, Eötvös Loránd University, 1117 Budapest, Pázmány Péter Sétány 1/C, Hungary. soosv@mail.mgki.hu
Jóri
Balázs
B
Páldi
Emil
E
Szego
Dóra
D
Szigeti
Zoltán
Z
Rácz
Ilona
I
Lásztity
Demeter
D
D000595:Amino Acid Sequence; D035401:Conyza / Q000145:classification / Q000187:drug effects / Q000235:genetics*; D005293:Ferritins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D006540:Herbicides / Q000494:pharmacology*; D005810:Multigene Family; D010269:Paraquat / Q000494:pharmacology*; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D020539:Sequence Analysis, Protein; D015854:Up-Regulation / Q000187:drug effects
D006540:Herbicides; D010940:Plant Proteins; D005293:Ferritins; D010269:Paraquat