SENYAWA FENOL PADA TOLERANSI Falcataria moluccana (Miq.) TERHADAP PENYAKIT KARAT TUMOR

Falcataria moluccana (Miq.) is severely attacked by Uromycladium tepperianum (Sacc.) McAlpine,  which is a gall-forming (neoplasmic) and parasitic obligate pathogen. Phenolic compounds have the  ability to function as co-factors of pathogenicity determinant of pathogens development and chemical  defenses of plants. The purpose of this study was to determine the content of phenolic compounds on  gall rust tolerance sengon by observation of tolerant sengon height, quantitative analysis of total  phenolic compounds, wood anatomy analysis and tolerance test of sengon callus from tissue culture  with filtrate gall rust as chemical agent. The results of the research were (1) inoculated sengon have  lower total phenolic compounds than the control (no inoculation), (2) tolerant sengon have lower  content of phenolic compounds than sensitive one, (3) microscopic wood anatomy observation shows  that tolerant sengon have darker substrat, and (4) in the same concentration of gall rust filtrate  incubation media, the tolerant sengon have higher survival cell calli. The highest concentration that  callus cells can survive was 25% (v/v).