HAYATI Journal of Biosciences
Vol. 27 No. 1 (2020): January 2020

Rhizopus Rotting on Agricultural Products in Jakarta

Anastasia Tatik Hartanti (Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jakarta)
Amelia Raharjo (Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jakarta)
Agustin Wydia Gunawan (Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jakarta)



Article Info

Publish Date
01 Jan 2020

Abstract

Agricultural products may easily perish if they are not well taken care of during postharvest treatment. One of the main causes in damaged products is the biological contamination of pathogenic fungi, such as Rhizopus spp. that gives rise to Rhizopus rot symptoms. The purpose of this research was to isolate Rhizopus spp. from different agricultural products showing Rhizopus rot symptoms as well as to identify them. Rhizopus pure cultures were isolated on potato dextrose agar. Identification was done through molecular techniques using PhytopureTM DNA Extraction Kit and Maxwell® RSC Plant DNA Kit for DNA isolation, internal transcribed spacer (ITS4 and ITS5) as primers for amplification, and molecular evolutionary genetics analysis 7 (MEGA7) for the reconstruction of phylogenetic tree from sequence result. The phylogenetic tree using Maximum Likelihood statistics with 1,000 replications of bootstrap test showed five strains, namely AR9, AR10, AR11, AR13, and AR14, which belong to R. delemar, and the other seven remaining strains, AR1-AR7 belong to R. stolonifer. Identification was clarified with morphological and physiological data using Rhizopus growth at temperature control of 33 and 42°C as well as microscopic observation involving rhizoid, columella, measurement of sporangiospores, and sporangiophores.

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Journal Info

Abbrev

hayati

Publisher

Subject

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

Description

HAYATI Journal of Biosciences (HAYATI J Biosci) publishes articles and short communication in tropical bioscience fields such as development, biotechnology, biodiversity and environmental issues. HAYATI J Biosci covers wide range of all life forms topics including virus, microbes, fungi, plants, ...