Mycobiome analysis of leaf, root, and soil of symptomatic oil palm trees ( Jacq.) affected by leaf spot disease.

Recently, attention has been shifting toward the perspective of the existence of plants and microbes as a functioning ecological unit. However, studies highlighting the impacts of the microbial community on plant health are still limited. In this study, fungal community (mycobiome) of leaf, root, and soil of symptomatic leaf-spot diseased (SS) oil palm were compared against asymptomatic (AS) trees using ITS2 rRNA gene metabarcoding.

Thermal Tolerance Data and Molecular Identification Are Useful for the Diagnosis, Control and Modeling of Diseases Caused by .

Several economically important diseases of forest trees and agricultural crops in many parts of the world have been linked to the ascomycete fungal pathogen . This study compared the growth rate of 41 isolates of sourced from different hosts and two countries (Nigeria and Papua New Guinea (PNG)) under six temperature levels (22 °C, 25 °C, 30 °C, 32 °C, 34 °C and 35 °C). Phylogenetic relationships were obtained from the analysis of their nuclear ribosomal DNA internal transcribed sequence (ITS) data.

Climate Refuges in Nigeria for Oil Palm in Response to Future Climate and Fusarium Wilt Stresses.

The detrimental stresses of future climate change are well known and decisions are required to reduce their effects. Climate and disease stresses cause severe damage to plants and it is essential to understand how they will respond. Oil palm (OP) is an Fusarium important crop for many countries.

On-Demand Charging Management Model and Its Optimization for Wireless Renewable Sensor Networks.

Nowadays, wireless energy transfer (WET) is a new strategy that has the potential to essentially resolve energy and lifespan issues in a wireless sensor network (WSN). We investigate the process of a wireless energy transfer-based wireless sensor network via a wireless mobile charging device (WMCD) and develop a periodic charging scheme to keep the network operative. This paper aims to reduce the overall system energy consumption and total distance traveled, and increase the ratio of charging device vacation time.

Molecular Identification of Secreted Effector Genes Involved in African f.sp. Strains Pathogenesis During Screening Nigerian Susceptible and Tolerant Oil Palm ( Jacq.) Genotypes.

Fusarium wilt is caused by f. sp. , and constitutes a severe threat to the oil palm industry in Africa.

Integrative omics analysis on phytohormones involved in oil palm seed germination.

Background: Heat treatment is widely used to break dormancy for seed germination and phytohormones could be deeply involved. However, effect of heat treatment on phytohormone related genes/proteins/metabolites and possible relationship with dormancy release remains unclear in oil palm. In this study, oil palm seeds were heat-treated at 39 °C for 60 days according to the method for commercial production.

Multilocus Sequence Analysis Reveals Three Distinct Populations of " Phytoplasma palmicola" with a Specific Geographical Distribution on the African Continent.

To sustain epidemiological studies on coconut lethal yellowing disease (CLYD), a devastating disease in Africa caused by a phytoplasma, we developed a multilocus sequence typing (MLST) scheme for " Phytoplasma palmicola" based on eight housekeeping genes. At the continental level, eight different sequence types were identified among 132 " Phytoplasma palmicola"-infected coconuts collected in Ghana, Nigeria, and Mozambique, where CLYD epidemics are still very active. " Phytoplasma palmicola" appeared to be a bacterium that is subject to strong bottlenecks, reducing the fixation of positively selected beneficial mutations into the bacterial population.

Utilisation of biochar and superabsorbent polymers for soil amendment.

The application of superabsorbent polymers (SAPs) and/or biochars to stressed lands offer solutions to several critical ecological, energy and economic challenges posed by degraded lands due to human activities. These substances are like, 'artificial humus' as they are hydrophilic and contain carboxylic groups (SAPs) which enable them to bind cations and water and sequester carbon from air to reverse global warming (biochars). Several research studies using these substances point to their ability to increase the plant-available water in the soil which enables the plants to survive longer with water shortage, increase soil fertility and agricultural yields, improve soil structure, aeration and water penetration, reduce use of synthetic fertilisers and pesticides, reduce nitrous oxide and methane emission from soil, reduce nitrate and farm chemicals leaching into watersheds, convert green and brown wastes into valuable resources, and reduce the evapotranspiration rate of the plants.