101. Endophytic fungi confirmed as entomopathogens of the new invasive pest, the fall armyworm, Spodoptera frugiperda(JE Smith) (Lepidoptera: Noctuidae), infesting maize in South Sumatra, Indonesia
- Author
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Herlinda, Siti, Gustianingtyas, Mimma, Suwandi, Suwandi, Suharjo, Radix, Sari, Jelly Milinia Puspita, and Lestari, Ragil Putri
- Abstract
Background: The fall armyworm, Spodoptera frugiperda(JE Smith) (Lepidoptera: Noctuidae), is a new invasive pest in Indonesia causing financial losses. S. frugiperdalarvae hide in the leaf midrib all day. To overcome the hidden larvae, pathogenic endophytic fungi are needed. The objective of this research was to molecularly identify the endophytic fungal species from South Sumatra and determine the most pathogenic species against S. frugiperdalarvae. Endophytic fungal identification was based on morphological and molecular characteristics. The molecular identification was based on gene sequential analysis of Intergenic Transcribed Spacer (ITS) 1 and ITS 4. Bioassay of the endophytic fungal species was treated against the 2
nd larval instar of S. frugiperda. Result: The results of molecular identification revealed endophytic fungal species consisted of Chaetomiumsp. (GaTpeOi, JgTjPr, PiCrPga, and CaCjPga isolates), Aspergillus niger(L.) Van Tieghem (PsgTjPr, JgByU, and JaBuBys), Beauveria bassiana(Balsamo) Vuillemin (JgSPK, JaGiP, JaSpkPGA(2), JgCrJr, and JaTpOi (1) isolates), Curvularia lunata(Wakker) Boed. (JaGiPRB, CMTJP, JaMsBys, JaSpkPga(3), and JgTgSr isolates), Aspergillus flavusLink. (JgPWSR isolate), Penicillium citrinumThom F 1539 (JaTpOi(2) isolate), and Metarhizium anisopliae(Metschn.) Sorokin (CaTpPGA isolate). All fungal isolates were deposited in the GenBank. The endophytic fungal species of B. bassiana(JgSPK isolate) caused up to (22.67%) mortality, C. lunata(JaSpkPga(3) isolate) caused (17.33%) mortality, and M. anisopliae(CaTpPga isolate) caused (8%) mortality of the pest’s larvae. First report of B. bassianaand C. lunataisolated from maize (Zea maysL.), while M. anisopliaewas isolated from red chili (Capsicum annuumL.) as entomopathogenic endophytic fungi against S. frugiperdalarvae in Indonesia. Conclusion: The endophytic fungi species of B. bassiana, C. lunata, and M. anisopliaehad potentials as entomopathogens of S. frugiperda.- Published
- 2021
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