The changes of oil palm roots cell wall lipids during pathogenesis of<i>Ganoderma boninense</i>

Alexander, Arnnyitte; Dayou, Jedol; Abdullah, Syahriel; Chong, Khim Phin

doi:10.1088/1755-1315/77/1/012014

Cited by 5 publications

(4 citation statements)

References 23 publications

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“…Methyl 2-hydroxy-eicosanoate is a compound that majorly present in methanol extract of S. alba leaves. This compound is fatty acid methyl esters that previously found in oil palm roots, aerial parts of Ipomoea eriocarpa, and Terminalia bentzoe (Alexander, Dayou, Abdullah, & Chong, 2017;Das & Himaja, 2014;El-Rafie, Mohammed, Hamed, Ibrahim, & Abou Zeid, 2016). However, its pharmacological activity data is still limited.…”

Section: Resultsmentioning

confidence: 89%

Phytochemicals and Larvicidal Activity of Sonneratia alba Root Extracts from Ngurah Rai Mangrove Forest, Denpasar-Bali

Wijaya,

Indraningrat,

Kirtanayasa

2023

BIOMEDNATPROCH

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Dengue is an endemic disease with a high incidence in almost all Southeast Asian countries, including Indonesia. This infectious disease is caused by a virus transmitted by the bite of Aedes aegypti mosquito as the main vector. Effective mosquito vector control is a crucial step in stopping the spread of this virus. Of the several methods available, the use of larvicides is considered one of the most successful treatments in reducing the number of mosquito vectors. However, widely used synthetic larvicides can have undesirable side effects on the environment and non-target organisms including human health. The aim of this study was to discover a new biolarvicide from natural materials that is relatively safer. In this study, the biolarvicidal activity of mangrove plant species that are commonly found in Ngurah Rai Mangrove Forest Bali was tested, namely Sonneratia alba. Mangrove root simplicia was extracted by reflux method using three different solvents namely methanol, chloroform, and n-hexane. The content of compounds in the extract were analyzed using GC/MS method. The larvicidal activity of the extracts were tested on A. aegypti instar III/IV larvae with concentrations of 0.1, 1, 10, 100, and 1000 ppm for 24 hours. Subsequently, the average value of larval mortality was used to calculate the LC50 of each extract. The results showed that S. alba methanol extract provided the best larvicidal activity compared to chloroform and n-hexane extracts, with mortality of 69.33% at a concentration of 1000 ppm and LC50 of 1265 ppm. GC-MS analysis showed that the methanol extract of S. alba contained five dominant compounds namely Methyl 2-hydroxy-eicosanoate (19.55%); 4H-1-Benzopyran-4-one, 3,5-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy (16.48%); 4-((1E)-3-Hydroxy-1-propenyl)-2-methoxyphenol (10.06%); Benzamide, N-[4-(2-naphtyl)-2-thiazolyl]- (9.40%); and 2,3-Dihydro-3,5-bis(3-methoxyphenyl)-1H-inden-1-one (6.52%). The results of this study provide a preliminary result on larvicide activity from mangrove S. alba in order to develop bio larvicides from nature which is safer for human health and environment.

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Section: Resultsmentioning

confidence: 89%

Phytochemicals and Larvicidal Activity of Sonneratia alba Root Extracts from Ngurah Rai Mangrove Forest, Denpasar-Bali

Wijaya,

Indraningrat,

Kirtanayasa

2023

BIOMEDNATPROCH

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“…However, the release of FFAs can be a double-edged sword for the fungus, as fatty acids (FAs) play a dynamic role in different defense response mechanisms, such as the biosynthesis of the antimicrobial oxylipin and the biosynthesis of the major defense hormone jasmonic acid (JA) [ 40 ]. The genes involved in FA biosynthesis were found to be upregulated as a defensive response to G. boninense infection [ 41 ], while the antimicrobial fatty acid methyl esters were found in abundance in oil palm roots infected with G. boninense [ 42 , 43 ]. In addition, oleic acid, a polyunsaturated FA, was also found to have an inhibitory effect on G. boninense growth in vitro [ 44 ].…”

Section: Resultsmentioning

confidence: 99%

Unveiling the Core Effector Proteins of Oil Palm Pathogen Ganoderma boninense via Pan-Secretome Analysis

Khairi

Muhammad

Bunawan

et al. 2022

JoF

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Ganoderma boninense is the major causal agent of basal stem rot (BSR) disease in oil palm, causing the progressive rot of the basal part of the stem. Despite its prominence, the key pathogenicity determinants for the aggressive nature of hemibiotrophic infection remain unknown. In this study, genome sequencing and the annotation of G. boninense T10 were carried out using the Illumina sequencing platform, and comparative genome analysis was performed with previously reported G. boninense strains (NJ3 and G3). The pan-secretome of G. boninense was constructed and comprised 937 core orthogroups, 243 accessory orthogroups, and 84 strain-specific orthogroups. In total, 320 core orthogroups were enriched with candidate effector proteins (CEPs) that could be classified as carbohydrate-active enzymes, hydrolases, and non-catalytic proteins. Differential expression analysis revealed an upregulation of five CEP genes that was linked to the suppression of PTI signaling cascade, while the downregulation of four CEP genes was linked to the inhibition of PTI by preventing host defense elicitation. Genome architecture analysis revealed the one-speed architecture of the G. boninense genome and the lack of preferential association of CEP genes to transposable elements. The findings obtained from this study aid in the characterization of pathogenicity determinants and molecular biomarkers of BSR disease.

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“…Light and transmission electron microscopy showed invasion of the root cortex, with no evidence of selective progression through the vascular system or lacunae as suggested by Sariah, Hussin, Miller, and Holderness (1994). Alexander, Dayou, Abdullah, and Chong (2017) studied infection on roots by scanning electron microscopy and observed infection primarily through the hair base, crossing epidermal cells, and followed by spread into cortical cells. In all these studies, colonisation occurred through unwounded roots; wounding was not necessary to cause infection.…”

Section: Infectionmentioning

confidence: 99%

Basal stem rot of oil palm revisited

Flood

Bridge

Pilotti

2022

Annals of Applied Biology

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The changes of oil palm roots cell wall lipids during pathogenesis ofGanoderma boninense

Cited by 5 publications

References 23 publications

Phytochemicals and Larvicidal Activity of Sonneratia alba Root Extracts from Ngurah Rai Mangrove Forest, Denpasar-Bali

Phytochemicals and Larvicidal Activity of Sonneratia alba Root Extracts from Ngurah Rai Mangrove Forest, Denpasar-Bali

Unveiling the Core Effector Proteins of Oil Palm Pathogen Ganoderma boninense via Pan-Secretome Analysis

Basal stem rot of oil palm revisited

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