LEARNING TO LOVE THE WORLD’S MOST HATED CROP –Review Articles

Jackson, Trevor A.; Crawford, John W.; Traeholt, Carl; Sanders, Tom

doi:10.21894/jopr.2019.0046

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…Although the PO industry is negatively associated with sustainability issues, it has been predicted that approximately 7% of annual growth in average yield gain is needed to meet the global demand for vegetable oil by 2050 [ 49 ]. Thus, research strategies at tackling yield-limiting factors which include pests and diseases is critical to global PO production and food security [ 50 ].…”

Section: Discussionmentioning

confidence: 99%

Gene Co-Expression Network Analysis Reveals Key Regulatory Genes in Metisa plana Hormone Pathways

Vengatharajuloo

Goh

Hassan

et al. 2023

Insects

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Metisa plana Walker (Lepidoptera: Psychidae) is a major oil palm pest species distributed across Southeast Asia. M. plana outbreaks are regarded as serious ongoing threats to the oil palm industry due to their ability to significantly reduce fruit yield and subsequent productivity. Currently, conventional pesticide overuses may harm non-target organisms and severely pollute the environment. This study aims to identify key regulatory genes involved in hormone pathways during the third instar larvae stage of M. plana gene co-expression network analysis. A weighted gene co-expression network analysis (WGCNA) was conducted on the M. plana transcriptomes to construct a gene co-expression network. The transcriptome datasets were obtained from different development stages of M. plana, i.e., egg, third instar larvae, pupa, and adult. The network was clustered using the DPClusO algorithm and validated using Fisher’s exact test and receiver operating characteristic (ROC) analysis. The clustering analysis was performed on the network and 20 potential regulatory genes (such as MTA1-like, Nub, Grn, and Usp) were identified from ten top-most significant clusters. Pathway enrichment analysis was performed to identify hormone signalling pathways and these pathways were identified, i.e., hormone-mediated signalling, steroid hormone-mediated signalling, and intracellular steroid hormone receptor signalling as well as six regulatory genes Hnf4, Hr4, MED14, Usp, Tai, and Trr. These key regulatory genes have a potential as important targets in future upstream applications and validation studies in the development of biorational pesticides against M. plana and the RNA interference (RNAi) gene silencing method.

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Section: Discussionmentioning

confidence: 99%

Gene Co-Expression Network Analysis Reveals Key Regulatory Genes in Metisa plana Hormone Pathways

Vengatharajuloo

Goh

Hassan

et al. 2023

Insects

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“…In the last decade, palm oil has confronted negative reputation with perceptions of the crop causing deforestation, emissions of greenhouse gases (GHG), biodiversity loss, social exploitation and the oil being damaging to health (Jackson et al, 2019), to the point of being labelled the 'world's most hated crop' (Yan, 2017). Non-government Organizations (NGOs), media and social perceptions towards the palm oil industry seemed to indicate that this crop is generally not sustainable (Aikanathan et al, 2015).…”

Section: Literature Reviewmentioning

confidence: 99%

Systematic Literature Review on the Social and Economic Impacts of Palm Oil Certification on Smallholders

Rosdin

Cheah

Moslim

2023

MJSSH

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Enhancing smallholder compliance to palm oil certification standards helps in achieving the global sustainability agenda. Oil palm smallholders are one of the vital parts of the global certified sustainable palm oil (CSPO) supply chain. However, little is known about on the importance of palm oil certification for the social and economic development of smallholders. This present study aims to systematically review the social and economic benefits received by smallholders in implementing palm oil certification. The review was conducted in accordance with the published standard, namely the PRISMA statement (Preferred Reporting Items for Systematic reviews and Meta-Analyses). The articles of this study were chosen from two major databases, namely Scopus and Web of Science (WoS). The results show that smallholders gained both immediate and long-term social (livelihood, social network and agricultural practices) and economic (financial management, income, price and production) benefits through palm oil certification. If these benefits can be extended to all smallholders, it will help to boost the participation of smallholders in certification. The current progress, impacts and challenges faced by oil palm smallholders in palm oil certification implementation were discussed comprehensively. Future research and suggestions on the contributions of oil palm smallholders in successful certification were summarised. This eventually leading to achieving Sustainable Development Goals (SDGs) for benefits of the whole supply chain of Malaysian palm oil industry.

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“…Conversion of tropical forests may also lead to changes in the short-and long-term nutrient status of the converted land-use systems. It is important to understand impacts of these land-use changes in order to identify more environmentally friendly and sustainable management practices (Jackson et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Comparison of greenhouse gas fluxes and microbial communities from tropical forest and adjacent oil palm plantations on mineral soil

Drewer¹,

Leduning²,

Griffiths³

et al. 2020

Preprint

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Abstract. In Southeast Asia, oil palm plantations have largely replaced tropical forests. The impact of this shift in land-use on greenhouse gas (GHG) fluxes and soil microbial communities remains highly uncertain, mainly due to a relatively small pool of available data. The aim of this study is to quantify differences of nitrous oxide (N2O) and methane (CH4) fluxes as well as soil carbon dioxide (CO2) respiration rates from logged forests, oil palm plantations of different ages and an adjacent small riparian area. The focus of this study is on N2O fluxes, as these emissions are expected to increase significantly due to the introduction of nitrogen (N) fertiliser application. This study was conducted in the SAFE (Stability of Altered Forest Ecosystems) landscape in Malaysian Borneo (Sabah) with measurements every two months over a two-year period. GHG fluxes were measured by static chambers; at the same time soil samples were collected for analysis of the key soil physicochemical parameters and for analysis of microbial biodiversity using next generation sequencing in dry and wet season. N2O fluxes were highly variable across the different sites, with the highest mean flux from OP (46.2 ± 166 µg m−2 h−1 N2O-N) and riparian (31.8 ± 220 µg m−2 h−1 N2O-N) sites, compared to lower fluxes from logged forest (13.9 ± 171 µg m−2 h−1 N2O-N). Methane fluxes were generally small; −2.6 ± 17.2 µg CH4-C m−2 h−1 for OP and 1.3 ± 12.6 µg CH4-C m−2 h−1 for riparian with the range of measured CH4 fluxes largest in logged forests (2.2 ± 48.3 µg CH4- m−2 h−1). Soil respiration rates were larger from riparian areas (157.7 ± 106 mg m−2 h−1 CO2-C) and logged forests (137.4 ± 95 mg m−2 h−1 CO2-C) than OP plantations (93.3 ± 70 mg m−2 h−1 CO2-C) due to larger amounts of decomposing leaf litter. Microbial communities were distinctly different between the different land-use types and sites, bacterial communities linked to soil pH and fungal and eukaryotic communities to land-use. Despite measuring a number of environmental parameters, mixed models could only explain up to 17 % of the variance of measured fluxes for N2O, 3 % of CH4 and 25 % of soil respiration. Scaling up measured N2O fluxes to Sabah using land areas for forest and OP resulted in emissions increasing from 7.6 Mt (95 % confidence interval, −3.0–22.3 Mt) per year in 1973 to 11.4 Mt (0.2–28.6 Mt) per year in 2015 due to the increasing area of forest converted to OP plantations over the last ~40 years.

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LEARNING TO LOVE THE WORLD’S MOST HATED CROP –Review Articles

Cited by 9 publications

References 21 publications

Gene Co-Expression Network Analysis Reveals Key Regulatory Genes in Metisa plana Hormone Pathways

Gene Co-Expression Network Analysis Reveals Key Regulatory Genes in Metisa plana Hormone Pathways

Systematic Literature Review on the Social and Economic Impacts of Palm Oil Certification on Smallholders

Comparison of greenhouse gas fluxes and microbial communities from tropical forest and adjacent oil palm plantations on mineral soil

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