Jackfruit (Artocarpus heterophyllus), a new host plant of Ceratocystis wilt in South Sumatra, Indonesia

Abstract

In 2019, wilt and sudden death were observed on Artocarpus heterophyllus (jackfruit). Identification was performed by sequence analysis of the concatenated β-tubulin and ITS gene regions. Sequencing of the PCR product confirmed this pathogen was Ceratocystis fimbriata sensu stricto. This is the first report of C. fimbriata causing sudden death disease in A. heterophyllus in Indonesia and worldwide.

Diseases Severity, Genetic Variation, and Pathogenicity of Ceratocystis Wilt on Lansium domesticum in South Sumatra, Indonesia

“…It might be due to the haplotype having a weak pathogenicity (Suwandi et al, 2021). From this and previous study, there are three the ITS haplotype C. fimbriata group isolated from L. domesticum (Meliaceae) including ITS5, ITS6z, and ITS7b that was the same as the haplotype C. fimbriata group from acacia, jackfruit, and bullet wood in Indonesia (Pratama et al, 2021a(Pratama et al, , 2021bTarigan et al, 2011). This shows that the genetic similarity of Ceratocystis in L. domesticum (Meliaceae) with Ceratocystis in Acacia is the result of crossing the ITS5, ITS6z, and ITS7b haplotypes.…”

“…complex grouped into C. fimbriata sensu stricto . Comparison of ITS and β-tubulin gene sequences in each isolate obtained showed similarities to C. fimbriata which was reported to attack duku ( Suwandi et al, 2021 ), jackfruit ( Pratama et al, 2021b ), and bullet wood ( Pratama et al, 2021a ) plants.…”

“…In general, these symptoms are similar to those of C. fimbriata described in Acacia plants ( Tarigan et al, 2010 , 2011 ). C. fimbriata is a severe wilt pathogen that infects jackfruit ( Pratama et al, 2021a ) and causes a sudden decline in bullet wood disease ( Pratama et al, 2021b ), hence it has the potential to cause damage and destruction to duku in Indonesia.…”

“…1 ). In each plantation, five plots with a size of 10 × 10 m were selected from the center of the diseased tree ( Pratama et al, 2021b ; Suwandi et al, 2021 ). Furthermore, the trees are declared infected if some branches or stems show symptoms of the disease.…”

Design of arboretum and ecotourism complex on Kahatex green open space in Jatiroke Village

“…In addition to the tables, Arthocarpus heterophyllus and Tamarindus indica were also planted in block EE-1 and EE-2 respectively. The separation of Arthocarpus heterophyllus and Tamarindus indica from the main arboretum complex is due to the specialized separation these tree species require, in order to accommodate Arthocarpus heterophyllus's nutrition needs as well as the suppressive capability of Tamarindus indica on the growth of other plants in its area [12] [13]. Arthocarpus heterophyllus are planted at 6x6 meters apart while Tamarindus indica are planted at 10x10 meters apart.…”