Sugarcane yellow leaf virus and sugarcane yellows phytoplasma: elimination by tissue culture
Code (CO)MSI02P3776
Author (AU)Parmessur, Y.
Aljanabi, S.
Saumtally, S.
Dookun-Saumtally, A.
Title - English (ET)Sugarcane yellow leaf virus and sugarcane yellows phytoplasma: elimination by tissue culture
Document Type(DT)periodical article
Date of publication (DP)2002
Series (SE)Plant Pathology
Source (SO)51 (5): 561-566
Language of text (LT)En
Language of summaries (LS)En
Abstract (AB)Yellow leaf syndrome (YLS) is a recently reported disease of sugarcane, characterized by yellowing of the leaves. Two pathogens: a virus, sugarcane yellow leaf virus (SCYLV); and a phytoplasma, sugarcane yellows phytoplasma (SCYP), are associated with the disease. The use of tissue culture was investigated as a means to eliminate both SCYLV and SCYP from exotic varieties undergoing quarantine in Mauritius. Of 43 varieties in quarantine, 28 were infected with SCYLV and 19 with SCYP when checked by RT-PCR and nested PCR, respectively. Seventeen varieties were coinfected with both pathogens. Thirty infected varieties were induced to form callus in vitro using leaf rolls as explants. After two sub-cultures, 19 varieties were successfully regenerated and tested for SCYLV and SCYP. No pathogen could be detected in any regenerated plantelets. All the regenerated plants remained free from both SCYLV and SCYP over a period of 1 year in the glasshouse, confirming that the pathogens had been eliminated by tissue culture.
Descriptors - English (DE)sugarcane
diseases
sugarcane yellow leaf virus
sugarcane yellows phytoplasma
disease elimination
tissue culture
callus culture
PCR
nested-PCR
RT-PCR
virus elimination
Descriptors - Geographic (DG)MAURITIUS
Sort Key 1(K1)Sugarcane
Sort Key 2 (K2)Diseases
Date record entered (DA)2002-12-05
Language of analysis (LA)En
Affiliation (AF)Mauritius Sugar Industry Research Institute
Location (LO)Path
Processing status (PS)CAT
MSIRI Staff (MS)Path