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Florencia Anabel Mesas,Marí,a Cecilia Terrile,Marí,a Ximena Silveyra,Adriana Zuñ,iga,Marí,a Susana Rodriguez,Claudia Anahí,Casalongué,Julieta René,e Mendieta 한국식물병리학회 2021 Plant Pathology Journal Vol.37 No.6
Chitosan has been considered an environmental-friend- ly polymer. However, its use in agriculture has not been extended yet due to its relatively low solubility in water. N-Methylene phosphonic chitosan (NMPC) is a water- soluble derivative prepared by adding a phosphonic group to chitosan. This study demonstrates that NMPC has a fungicidal effect on the phytopathogenic fungus Fusarium solani f. sp. eumartii (F. eumartii) judged by the inhibition of F. eumartti mycelial growth and spore germination. NMPC affected fungal membrane per- meability, reactive oxygen species production, and cell death. Also, this chitosan-derivative exerted antifungal effects against two other phytopathogens, Botrytis cine- rea, and Phytophthora infestans. NMPC did not affect tomato cell viability at the same doses applied to these phytopathogens to exert fungicide action. In addition to water solubility, the selective biological cytotoxicity of NMPC adds value in its application as an antimicrobial agent in agriculture.
Zanetti, Maria Eugenia,Chan, Raquel L.,Godoy, Andrea V.,Gonzalez, Daniel H.,Casalongue, Claudia A. Korean Society for Biochemistry and Molecular Biol 2004 Journal of biochemistry and molecular biology Vol.37 No.3
StMBF1 (Solanum tuberosum multiprotein bridging factor 1) is a plant member of the MBF1 family of transcriptional co-activators. In an attempt to understand the role of StMBF1, we analyzed its interaction with plant transcription factors of the homeodomain-leucine zipper (Hd-Zip) family, a group of proteins with a typical leucine zipper motif adjacent to a homeodomain. StMBF1 is able to interact in vitro with the Hd-Zip protein Hahb-4 both in the presence and absence of DNA. Upon binding, StMBF1 increases the DNA binding affinity of Hahb-4, and of another plant homeodomain containing protein from the GL2/Hd-Zip IV family, HAHR-1. The biological role of interactions is discussed in this paper.
( Maria Eugenia Zanetti ),( Raquel L. Chan ),( Andrea V. Godoy ),( Daniel H. Gonzalez ),( Claudia A. Casalongue ) 생화학분자생물학회 2004 BMB Reports Vol.37 No.3
StMBFl (Solanumtuberosum multiprotein bridging factor 1) is a plant member of the MBFl family of transcriptional co-activators. In an attempt to understand the role of StMBF1, we analyzed its interaction with plant transcription factors of the homeodomain-leucine zipper (Hd-Zip) family, a group of proteins with a typical leucine zipper motif adjacent to a homeodomain. StMBFl is able to interact in vitro with the Hd-Zip protein Hahb-4 both in the presence and absence of DNA. Upon binding, StMBFl increases the DNA binding affinity of Hahb-4, and of another plant homeodomain containing protein from the GL2/Hd-Zip IV famuly, HAHR-1. The biological role of interactions is discussed in this paper.