New Host Record of Myrothecium roridum Causing Leaf Spot on Abutilon megapotamicum from China

Abstract

During September 2010, Abutilon megapotamicum plants with darkbrown concentric spots on leaves were observed in a commercial glasshouse located in Beijing, China. This study was carried out to identify the causal agent of this disease based on Koch's postulates and morphological characteristics. Pathogenicity tests in the glasshouse showed that Myrothecium roridum Tode ex Fr. caused the leaf spot on A. megapotamicum plants, which were the same as those observed in naturally infected plants in the field. Moreover, to confirm the pathogen to species, the rDNA internal transcribed spacer (ITS) of isolate was PCR-amplified using ITS1 and ITS4 primer pairs and sequenced. DNA analysis revealed a 100% species identity index for M. roridum. To the best of our knowledge, this is the first report of M. roridum on A. megapotamicum in China.

Identification of Paramyrothecium foliicola causing crater rot in eggplant and its potential hosts under controlled conditions

“…States, Brazil, China, Korea, Pakistan, Ghana and Brazil (Tewari & Skoropad, 1977;Tulloch, 1972;Kim et al, 2003;Han et al, 2014, Li et al, 2014, Li et al, 2015Ben et al, 2015;Ben et al, 2016;Ben et al, 2017;Fujinawa et al, 2016;Garibaldi et al, 2016;Chen et al, 2018;Zhao et al, 2010;Alam et al, 2017;Haudenshield et al, 2018;Fish et al, 2012;Sun et al, 2020;Rennberger & Keinath, 2020). Among the several species, P. roridum is the frequently reported causal agent of these diseases.…”

Generic hyper-diversity in <I>Stachybotriaceae</I>

“…roridum and Myr. verrucaria are considered serious plant pathogens associated with dieback and leaf spots of various plant hosts ( Tulloch 1972 , Yang & Jong 1995 , Han et al 2014 , Li et al 2014 , Ben et al 2015 , Fujinawa et al 2015 ) resulting in the exploitation of these fungi as bioherbicides of weeds ( Boyette et al 2014a , b , Piyaboon et al 2014 , Weaver et al 2016 ).…”