Maize Dwarf Mosaic Virus: From Genome to Disease Management

Kannan, Maathavi; Ismail, Ismanizan; Bunawan, Hamidun

doi:10.3390/v10090492

Cited by 34 publications

(22 citation statements)

References 132 publications

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“…For this purpose, maize was selected as a model plant due to its significant economic value as a worldwide cultivated crop for its high starch content [31,32]. Furthermore, studies revealed that the laser is useful to improve the sanitary quality of maize seed [33]; this characteristic allows a seedling to have more strength to emerge from the soil [34].…”

Section: Introductionmentioning

confidence: 99%

Laser Irradiation Effects at Different Wavelengths on Phenology and Yield Components of Pretreated Maize Seed

et al. 2020

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This study aims to compare the effects of different laser wavelengths, exposure times, and low-power-intensity laser irradiation on maize seeds. Seeds were exposed to He–Ne (632.8 nm) red laser, Nd:YAG second-harmonic-generation (532 nm) green laser, and diode (410 nm) blue laser. Four different exposure times (45, 65, 85, and 105 s) with different intensity (2 and 4 mW/cm2), for each laser were tested. Phenology and yield components (plant height, leaf area, number of rows per ear, seed yield, harvest index, yield efficiency, and grain weight) were determined. The experiment was conducted in a randomized complete block design with three replications. Plant height was found comparatively high in blue laser light—211 cm at 85 s. Blue and green laser lights showed significant increases in the number of rows per ear to 39.1 at 85 s and 45 at 65 s, respectively, compared to the control of 36 rows/ear. The order of seed yield was blue (7003.4 kg/ha) > green (6667.8 kg/ha) > red (6568.01 t/ha) based on different exposure times of 85 s, 85 s, and 105 s, respectively, compared to the control of 6.9 kg/ha. The findings indicate the possibility of using blue laser light to manipulate the growth and yield of maize.

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Section: Introductionmentioning

confidence: 99%

Laser Irradiation Effects at Different Wavelengths on Phenology and Yield Components of Pretreated Maize Seed

et al. 2020

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“…However, the construction of an infectious clone that involves the cloning of many subgenomic cDNA fragments is frequently laborious [5]. The construction of an infectious clone is still gruelling and many obstacles remain including unpredictability and toxicity in bacterial host-virus sequences [6,7].…”

Section: Introductionmentioning

confidence: 99%

Construction of Infectious Clones of Begomoviruses: Strategies, Techniques and Applications

Saad

Akbar

et al. 2021

Biology

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Begomovirus has become a potential threat to the agriculture sector. It causes significant losses to several economically important crops. Given this considerable loss, the development of tools to study viral genomes and function is needed. Infectious clones approaches and applications have allowed the direct exploitation of virus genomes. Infectious clones of DNA viruses are the critical instrument for functional characterization of the notable and newly discovered virus. Understanding of structure and composition of viruses has contributed to the evolution of molecular plant pathology. Therefore, this review provides extensive guidelines on the strategy to construct infectious clones of Begomovirus. Also, this technique’s impacts and benefits in controlling and understanding the Begomovirus infection will be discussed.

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“…A good example of this is MLN (Maize lethal necrosis) disease, first registered in Kenya in 2011, the onset of which was due to co-infection with maize chlorotic mottle virus (MCMV) and MDMV, or other potyviruses ( Kiruwa et al, 2019; Asiimwe et al, 2020 ). MDMV uses plant resources to enhance its own proliferation, thereby significantly contributing to the retardation of plant development and growth processes ( Kannan et al 2018 ). Thus, in the case of MDMV infection, plant biomass and yields are greatly reduced, resulting in global losses of up to $ 30 billion ( Sastry and Zitter 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Changes in physiology, gene expression and ethylene biosynthesis in MDMV-infected sweet corn primed by small RNA pre-treatment

Balassa

Gondor

et al. 2021

Saudi Journal of Biological Sciences

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The physiological condition of plants is significantly affected by viral infections. Viral proliferation occurs at the expense of the energy and protein stores in infected plant cells. At the same time, plants invest much of their remaining resources in the fight against infection, making them even less capable of normal growth processes. Thus, the slowdown in the development and growth processes of plants leads to a large-scale decrease in plant biomass and yields, which may be a perceptible problem even at the level of the national economy. One form of protection against viral infections is treatment with small interfering RNA (siRNA) molecules, which can directly reduce the amount of virus that multiplies in plant cells by enhancing the process of highly conserved RNA interference in plants. The present work demonstrated how pre-treatment with siRNA may provide protection against MDMV (Maize dwarf mosaic virus) infection in sweet corn ( Zea mays cv. saccharata var. Honey Koern). In addition to monitoring the physiological condition of the maize plants, the accumulation of the virus in young leaves was examined, parallel, with changes in the plant RNA interference system and the ethylene (ET) biosynthetic pathway. The siRNA pre-treatment activated the plant antiviral defence system, thus significantly reducing viral RNA and coat protein levels in the youngest leaves of the plants. The lower initial amount of virus meant a weaker stress load, which allowed the plants to devote more energy to their growth and development. In contrast, small RNA pre-treatment did not initially have a significant effect on the ET biosynthetic pathway, but later a significant decrease was observed both in the level of transcription of genes responsible for ET production and, in the amount of ACC (1-aminocyclopropane-1-carboxylic acid) metabolite. The significantly better physiological condition, enhanced RNAi response and lower quantity of virus particles in siRNA pretreated plants, suggested that siRNA pre-treatment stimulated the antiviral defence mechanisms in MDMV infected plants. In addition, the consistently lower ACC content of the plants pre-treated with siRNA suggest that ET does not significantly contribute to the successful defence in this maize hybrid type against MDMV.

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Maize Dwarf Mosaic Virus: From Genome to Disease Management

Cited by 34 publications

References 132 publications

Laser Irradiation Effects at Different Wavelengths on Phenology and Yield Components of Pretreated Maize Seed

Laser Irradiation Effects at Different Wavelengths on Phenology and Yield Components of Pretreated Maize Seed

Construction of Infectious Clones of Begomoviruses: Strategies, Techniques and Applications

Changes in physiology, gene expression and ethylene biosynthesis in MDMV-infected sweet corn primed by small RNA pre-treatment

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