Detection and characterisation of sugarcane yellows phytoplasma
Code (CO)MSI01P3571
Author (AU)Aljanabi, S. M.
Parmessur, Y.
Jones, P.
Saumtally, S.
Dookun, A.
Title - English (ET)Detection and characterisation of sugarcane yellows phytoplasma
Meeting (MT)24th ISSCT Congress, Brisbane, September 01
Document Type(DT)periodical article
Date of publication (DP)2001
Series (SE)Proc. int. Soc. Sug. Cane Technol.
Source (SO)24(2): 343-348
Language of text (LT)En
Language of summaries (LS)En
Fr
Es
Abstract (AB)A study was carried out to assess the distribution and association of sugarcane yellows phytoplasma-ScYP in sugarcane affected by yellow leaf syndrome (YLS) in Mauritius. The polymerase chain reaction was used to detect and characterize the phytoplasma. Samples were collected from clones undergoing quarantine, in a variety collection plot, in mature commercial fields and from 6 months old commercial fields. A 1.25 kb DNA fragment encoding for the phytoplasma 16S rRNA was consistently amplified by nested-PCR. Of the 204 samples with and without symptoms derived from 166 varieties, 95 (57 per cent) tested positive for ScYP by PCR. Restriction fragment length polymorphism analysis of the phytoplasma 16S rDNA amplified product indicated that 3 phytoplasma groups are present in sugarcane in Mauritius. The results indicated that detection of YLS based on symptoms only is not reliable since large number of asymptomatic varieties were positive for the phytoplasma early in the growing season.
Descriptors - English (DE)sugarcane yellows phytoplasma
PCR
Polymerase chain reaction
quarantine
yellow leaf syndrome
Phytoplasma
Descriptors - Geographic (DG)Mauritius
Sort Key 1(K1)Sugarcane: Diseases and disease management
Sort Key 2 (K2)Sugarcane Yellows Phytoplasma
Date record entered (DA)2001-09-10
Language of analysis (LA)En
MSIRI Staff (MS)Biotech
Path