Effects of autoclaving on the physiological action of paclobutrazol  

作　　者：Dimas Mendes Ribeiro Caroline Müller Jackson Bedin Glayton Botelho Rocha Raimundo Santos Barros 

机构地区：[1]Depto de Biologia Vegetal/Universidade Federal de Vicosa,Vicosa,Brazil

出　　处：《Agricultural Sciences》2011年第3期191-197,共7页农业科学（英文）

基　　金：Thanks are due to FAPEMIG(Foundation for Research Sponsoring of Minas Gerais State)for the scholarships granted to DMR(Post-Doctoral training),JB and GBR(Scientific Initiation training);and for the financial support in several occasions.

摘　　要：Besides being employed as an efficient plant growth retardant for field, garden and potted plants, paclobutrazol (PBZ) is also used in laboratory experiments, mainly in aseptic cultures, both in autoclaved and non-autoclaved form. Therefore it is not known if autoclaving can partial or completely inactivates the product, thus decreasing its efficacy. Thus a simple experiment was carried out to assess to what extent the autoclaving process can affect some growth components and dry mass accumulation and partition in sunflower seedlings, by employing the techniques of plant Growth Analysis. Autoclaving did not modify either qualitative or quantitatively any of the plant responses to PBZ as well their reversions by gibberellic acid.Besides being employed as an efficient plant growth retardant for field, garden and potted plants, paclobutrazol (PBZ) is also used in laboratory experiments, mainly in aseptic cultures, both in autoclaved and non-autoclaved form. Therefore it is not known if autoclaving can partial or completely inactivates the product, thus decreasing its efficacy. Thus a simple experiment was carried out to assess to what extent the autoclaving process can affect some growth components and dry mass accumulation and partition in sunflower seedlings, by employing the techniques of plant Growth Analysis. Autoclaving did not modify either qualitative or quantitatively any of the plant responses to PBZ as well their reversions by gibberellic acid.

关 键 词：AUTOCLAVING Dry Mass Accumulation Gibberilins GROWTH PACLOBUTRAZOL SUNFLOWER 

分 类 号：R73[医药卫生—肿瘤]