Establishment of Beauveria bassiana (Balsamo) Vuillemin as an Endophytein Cotton

Amutha, M.

doi:10.20546/ijcmas.2017.606.298

Cited by 5 publications

(5 citation statements)

References 11 publications

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“…Recently, biochar and chitosan have been also considered as fillers/carriers for microbial seed coating (Głodowska et al, 2016; Głodowska et al, 2017; Ruiz-de-la-Cruz et al, 2017). Binders, natural or synthetic polymers such as methyl cellulose (Hartley et al, 2004; Haikal, 2008; Swaminathan et al, 2016; Amutha, 2017; Lopisso et al, 2017), carboxymethyl cellulose (Sharma et al, 2003; Roesti et al, 2006; Nawar, 2007; Zhou et al, 2017), gum arabic (Kyei-Boahen et al, 2001; Ehteshamul-Haque et al, 2007; Dawar et al, 2008; Singh et al, 2014), or polysaccharide Pelgel (Jensen et al, 2000; Li et al, 2002; Ugoji et al, 2006) are generally added during or toward the end of the coating process in order to bind the exogenous materials and reduce the amount of dust in the final product (Pedrini et al, 2017). Some adhesives (e.g., gum arabic and xanthan gum) can also be used to extend the survival of PBM applied to seeds (Jambhulkar et al, 2016).…”

Section: Seed Coating With Beneficial Microbesmentioning

confidence: 99%

“…This might be due to the fact that coating with a bacterial formulation delivered higher bacterial concentration to the seeds and consequently to the rhizosphere, in comparison with other methods. In another study, Amutha (2017) compared four different inoculation methods (seed immersion, seed coating, foliar spray, and soil drenching) and found that all delivered B. bassiana to cotton plants, though with different levels of efficacy. Foliar application followed by soil drenching was considered the most effective inoculation method for B. bassiana .…”

Section: Seed Coating With Beneficial Microbesmentioning

confidence: 99%

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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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Section: Seed Coating With Beneficial Microbesmentioning

confidence: 99%

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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“…The results corroborate with those of Norrie and Keathley [ 62 ], Gajc-Wolska et al [ 63 ], and Sharma et al [ 64 ] who depicted that spray application and seed priming boost photosynthetic activity and increase yield of several species. Otherwise, the individual effect of BS using the ‘seed coating’ technique showed a better performance compared to the ‘foliar spray’, contrary to Amutha et al [ 65 ]. Indeed, seed coating, a process that consists in covering seeds with low amounts of exogenous materials, is gaining attention as an efficient delivery system for beneficial microoragnisms [ 17 ].…”

Section: Discussionmentioning

confidence: 68%

Use of Biostimulants: Towards Sustainable Approach to Enhance Durum Wheat Performances

Ayed

Bouhaouel

Jebari

et al. 2022

Plants

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The use of biostimulant (BS) holds a promising and environmental-friendly innovation to address current needs of sustainable agriculture. The aim of the present study is twofold: (i) assess the potential of durum wheat seed coating with microbial BS (‘Panoramix’, Koppert), a mix of Bacillus spp., Trichoderma spp., and endomycorrhiza, compared to two chemical products (‘Spectro’ and ‘Mycoseeds’) through germination bioassay, pot and field trials under semi-arid conditions, and (ii) identify the most effective method of BS supply (‘seed coating’, ‘foliar spray’, and ‘seed coating + foliar spray’) under field conditions. For this purpose, three modern durum wheat cultivars were tested. ‘Panoramix’ was the most efficient treatment and enhanced all germination (germination rate, and coleoptile and radicle length), physiological (relative water content, chlorophyll content, and leaf area), and agro-morphological (plant height, biomass, seed number per spike, thousand kernel weight, and grain yield) attributes. Unexpectedly, the individual application of ‘Panoramix’ showed better performance than the combined treatment ‘Panoramix + Spectro’. Considering the physiological and agro-morphological traits, the combined method ‘seed coating + foliar spray’ displayed the best results. Principal component analysis confirmed the superiority of ‘Panoramix’ treatment or ‘seed coating + foliar spray’ method. Among tested durum wheat cultivars, ‘Salim’ performed better especially under ‘Panoramix’ treatment, but in some case ‘Karim’ valorized better this BS showing the highest increase rates. Based on these study outcomes, ‘Panoramix’ might be used as promising sustainable approach to stimulate durum wheat performance.

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“…Another problem in cotton cultivation is insect pests [ 1 , 5 ] like aphids and thrips [ 6 ], which may cause severe yield losses. Another challenge for entomologists today is to develop eco-friendly solutions for cotton pest control, avoiding the drawbacks of chemical measures such as environmental pollution and insecticide resistance, while aiming to provide beneficial microbe-based insecticide solutions [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the symbiosis between plants and entomopathogenic ascomycetes such as B. bassiana has become an interesting field of research, not only because of the endophytic behavior characteristic of arthropod pathogenic fungi, but also because of the positive influence that endophytic ascomycetes exert on plants by helping them to develop mechanisms to overcome stressful biotic factors, such as pests or fungal pathogens [ 11 ]. Endophytes also produce secondary metabolites that can potentially be used in agriculture [ 7 , 12 ] and improve plant host tolerance to abiotic stress, fungal diseases or pests [ 13 ], and in return plants provide a friendly environment allowing for beneficial fungi to obtain nutrients [ 14 ] and disperse. Fungal endophytes are defined as fungi that colonize internal plant tissues for all or part of the plant’s life, and this symbiosis has no adverse effects on plant growth [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Biostimulant and Bioinsecticidal Effect of Coating Cotton Seeds with Endophytic Beauveria bassiana in Semi-Field Conditions

Mantzoukas,

Papantzikos,

Katsogiannou

et al. 2023

Microorganisms

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Increasing commercial demands from the textile and food industries are putting strong pressure on the cultivation of cotton and its derivatives to produce high yields. At the same time, cotton has high nutrient and irrigation requirements and is highly susceptible to insect pests. Coating cotton seeds with beneficial fungi could address these problems. The aim of this study was to investigate the growth of cotton using (A) conventional seeds and (B) seeds coated with the entomopathogenic fungus Beauveria bassiana (Hypocreales: Cordycipitaceae). The experiment was conducted in a greenhouse of the Department of Agriculture of the University of Ioannina, in a completely randomized design. The growth characteristics of cotton plants were recorded weekly while the fresh weight and dry matter of the leaves, shoots and roots of the developed cotton plants were calculated at the end of the experiment. Weekly determination of total chlorophyll content (TCHL) was used as an indicator of plant robustness during the 80-day experiment. Many cotton growth parameters of treated plants, like number of leaves, shoots and apical buds, plant height, stem diameter, fresh and dried biomass and TCHL, were significantly higher than those of the untreated ones. Apart from plant growth, naturally occurring by Aphis gossypii (Hemiptera: Aphididae) infestation which also monitored for six weeks. A significantly lower aphid population was recorded for inoculated plants after the fifth week compared to the control. The overall evaluation revealed that B. bassiana coating treatments appear to have a significant biostimulatory and bioinsecticidal effect. Our results could represent responsive applications to the demands of intensive cotton growing conditions.

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Establishment of Beauveria bassiana (Balsamo) Vuillemin as an Endophytein Cotton

Cited by 5 publications

References 11 publications

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

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

Use of Biostimulants: Towards Sustainable Approach to Enhance Durum Wheat Performances

Biostimulant and Bioinsecticidal Effect of Coating Cotton Seeds with Endophytic Beauveria bassiana in Semi-Field Conditions

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