Attack severity, sporulation intensity and stromata density are three symptoms of South American Leaf Blight caused by Microcyclus ulei (P. Henn.) v. Arx. evaluated in the field on one to three year-old rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg.]. This genetic study under epidemiologic conditions of the Michelin plantation, Itiquira, State of Mato Grosso Brazil, used ...

The enzyme kinetics of hevamine, a chitinase from the rubber tree Hevea brasiliensis, were studied in detail with a new enzyme assay. In this assay, the enzyme reaction products were derivatized by reductive coupling to a chromophore. Products were separated by HPLC and the amount of product was calculated by peak integration. Penta-N-acetylglucosamine (penta-nag) and hexa-N-acetylglucosamine (...

MYB transcription factors hold vital roles in the regulation of plant secondary metabolic pathways. Laticifers in rubber trees (Hevea brasiliensis) are of primary importance in natural rubber production because natural rubber is formed and stored within these structures. To understand the role of MYB transcription factors in the specialized cells, we identified 44 MYB genes (named HblMYB1 to Hb...

Zahtjevi koji se postavljaju pred ploveće objekte nužno su doveli do primjene polimera kao konstrukcijskog materijala i kao suvremenog sustava zaštite u brodogradnji i pomorstvu. Prirodni kaučuk je poznat kao važan industrijski materijal koji se dobiva od drveta kaučukovca (Hevea brasiliensis). To je polimerni materijal, po kemijskom sastavu uglavnom cis 1,4-poliizopren, koji se ubraja u skupin...

Small GTPases play a critical role in the regulation of a range of cellular processes including growth, differentiation, and intracellular transportation. The cDNA encoding a small GTPase, designated as HbGTPase1, was isolated from Hevea brasiliensis. HbGTPase1 was 882 bp long containing a 612-bp open reading frame encoding a putative protein of 203 amino acids, flanked by an 83-bp 5'-untransla...