Enhancing the Biological Control of Rice Seedling Disease by Adding Specific Carbon Sources into the Bacillus cereus D324 Formulation in Water-Seeded Rice

Sim, Jung Bo; Chung, Ill Min; Ku, Han Mo; Choi, Hyoi Won; Lee, Jong Moon; Chun, Se Chul

doi:10.5423/ppj.2008.24.1.058

Cited by 2 publications

(1 citation statement)

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“…Rhizobia and Trichoderma are also among the most studied microbial inoculants. Within PGPB, Pseudomonas and Bacillus are the most commonly applied genera, which are mainly used as plant growth promotors (Bashan, 1986; Junges et al, 2013; Kumar et al, 2015; Choi et al, 2016; Głodowska et al, 2016; Rehman et al, 2018) and BCA (Georgakopoulos et al, 2002; Pereira et al, 2007; Sim et al, 2008; Singh et al, 2012; Moussa et al, 2013; Zhou et al, 2018). Co-coating of Pseudomonas and Bacillus increased seed vigor and decreased the infection level of Xanthomonas oryzae pv.…”

Section: Seed Coating With Beneficial Microbesmentioning

confidence: 99%

Seed Coating: A Tool for Delivering Beneficial Microbes to Agricultural Crops

et al. 2019

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Plant beneficial microbes (PBMs), such as plant growth-promoting bacteria, rhizobia, arbuscular mycorrhizal fungi, and Trichoderma, can reduce the use of agrochemicals and increase plant yield, nutrition, and tolerance to biotic–abiotic stresses. Yet, large-scale applications of PBM have been hampered by the high amounts of inoculum per plant or per cultivation area needed for successful colonization and consequently the economic feasibility. Seed coating, a process that consists in covering seeds with low amounts of exogenous materials, is gaining attention as an efficient delivery system for PBM. Microbial seed coating comprises the use of a binder, in some cases a filler, mixed with inocula, and can be done using simple mixing equipment (e.g., cement mixer) or more specialized/sophisticated apparatus (e.g., fluidized bed). Binders/fillers can be used to extend microbial survival. The most reported types of seed coating are seed dressing, film coating, and pelleting. Tested in more than 50 plant species with seeds of different dimensions, forms, textures, and germination types (e.g., cereals, vegetables, fruits, pulses, and other legumes), seed coating has been studied using various species of plant growth-promoting bacteria, rhizobia, Trichoderma, and to a lesser extent mycorrhizal fungi. Most of the studies regarding PBM applied via seed coating are aimed at promoting crop growth, yield, and crop protection against pathogens. Studies have shown that coating seeds with PBM can assist crops in improving seedling establishment and germination or achieving high yields and food quality, under reduced chemical fertilization. The right combination of biological control agents applied via seed coating can be a powerful tool against a wide number of diseases and pathogens. Less frequently, studies report seed coating being used for adaptation and protection of crops under abiotic stresses. Notwithstanding the promising results, there are still challenges mainly related with the scaling up from the laboratory to the field and proper formulation, including efficient microbial combinations and coating materials that can result in extended shelf-life of both seeds and coated PBM. These limitations need to be addressed and overcome in order to allow a wider use of seed coating as a cost-effective delivery method for PBM in sustainable agricultural systems.

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