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All Journal Protobiont: Jurnal Elektronik Biologi
Mukarlina, Heni Susanti Riza Linda
Jurusan Biologi - Fakultas MIPA Universitas Tanjungpura Jl. Prof. Dr. H. Hadari Nawawi Pontianak - Kalimantan Barat
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Anatomi Daun dan Ranting Citrus nobilis L. var. microcarpa yang Terserang Citrus Vein Phloem Degeneration Riza Linda, Heni Susanti, Mukarlina,
Jurnal Protobiont Vol 3, No 3 (2014)
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/protobiont.v3i3.7552

Abstract

Citrus Vein Phloem Degeneration (CVPD) is one of the diseases that cause a decrease in the production of the Citrus nobilis L. var. microcarpa. The CVPD disease is caused by the Liberibacter asiaticus bacteria and transmitted through by psyllid (Diaphorina citri). The infected C. nobilis L. var. microcarpa indicates morphological changes which can be divided into mild, moderate, and severe symptoms. The main purpose of this research was investigating citrus leaf and twig anatomy which was infected by CVPD. The research was conducted from February 2014  until August 2014. Paraffin method was used to make cross section sample preparation of the citrus leaf and twig. The result on cross section of leaves, petioles, and twig CVPD symptomatic indicated there was cell wall thickening on epidermis. Mesophyll (leaf) and cortexs (petioles and twig) shape changes and there is an acumulation  of starch. The Phloem on leaves, petioles, and twigs indicated changes in cell shape in which it  becomes abnormal then damage (necrosis) occured.
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