An overview regarding bioherbicide and their production methods by fermentation

Klaic, Rodrigo; Kuhn, Raquel C.; Foletto, Edson Luiz; Prá, Valéria Dal; Jacques, Rodrigo Josemar Seminoti; Guedes, Jerson Vanderlei Carús; Treichel, Helen; Mossi, Altemir José; Oliveira, Débora de; Oliveira, J. Vladimir; Jahn, Sérgío Luiz; Mazutti, Márcio A.

doi:10.1002/9781118958308.ch14

Cited by 17 publications

(7 citation statements)

References 80 publications

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“…The water-in-oil-inwater system is the most promising form of the many bioherbicide formulations that have been explored over the years, and it can greatly reduce the dependence of the fungus on external humidity. 10,47 In this experiment, the conidial powder of strain HXDC-1-2 was prepared into a microcapsulated formulation and applied in the fields. The results showed that the agent could effectively control the target weeds in the rice field, and its biocontrol efficacy on E. crus-galli plants was more than 70%.…”

Section: Discussionmentioning

confidence: 99%

Effects of Bipolaris yamadae strain HXDC‐1‐2 as a bioherbicide against Echinochloa crus‐galli in rice and dry fields

Tan,

Zhang,

Zhang

et al. 2024

Pest Management Science

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BACKGROUNDBarnyardgrass (WSSA recommended) or Barnyard grass (Britannica recommended) (Echinochloa crus‐galli (L.) P. Beauv.) is one of the most problematic and dominant weeds in world agricultural systems, especially in paddy fields, where tillering and grain yield can be reduced by 50‐70% because of its competitive pressure. The frequent use of chemical herbicides to control E. crus‐galli has led to the evolution of herbicide resistance. Developing bioherbicides using pathogenic fungi to control E. crus‐galli could be an alternative option.RESULTSIn a previous study we showed that a strain of Bipolaris yamadae (HXDC‐1‐2) was promising in controlling gramineous weeds. Here we present an experiment evaluating this fungus as a mycoherbicide against E. crus‐galli in greenhouse and paddy fields, characterized mycelium growth and conidial production, and studied the infection development. The median effective dose (ED50) and 90% effective dose (ED90) values of microcapsulated B. yamadae strain HXDC‐1‐2 on E. crus‐galli in the greenhouse were 7.17 × 102 and 9.35 × 103 conidia mL‐1, respectively. Conidial germination, mycelial growth, and attachment formation occurred on E. crus‐galli leaves within 1 to 6 hours. The hyphae directly invaded cells and stomata, primarily from the appressorium on the epidermis, and necrotic lesions were observed on the leaf surface within 20 to 24 hours. Applied to E. crus‐galli plants at 1 × 105 conidia mL‐1, the fungus reduced the weed's fresh weight of 75%.CONCLUSIONBipolaris yamadae strain HXDC‐1‐2 has the potential to be developed as a bioherbicide against E. crus‐galli plants especially in rice fields.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

Effects of Bipolaris yamadae strain HXDC‐1‐2 as a bioherbicide against Echinochloa crus‐galli in rice and dry fields

Tan,

Zhang,

Zhang

et al. 2024

Pest Management Science

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“…Airlift bioreactors are known to be suitable for shear stress-sensitive microorganisms, prone to physical damage by mechanical agitation or fluid turbulence. In addition, airlift bioreactors consume lower amounts of energy than mechanically stirred reactors, and are considered one of the most economic designs for aerobic industrial production systems [ 25 , 26 ]. Therefore, to minimize damage to C .…”

Section: Methodsmentioning

confidence: 99%

Production of extracellular α-amylase by single-stage steady-state continuous cultures of Candida wangnamkhiaoensis in an airlift bioreactor

et al. 2022

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The kinetics of growth and α-amylase production of a novel Candida wangnamkhiaoensis yeast strain were studied in single-stage steady-state continuous cultures. This was performed in a split-cylinder internal-loop airlift bioreactor, using a variety of carbon sources as fermentation substrates. Results showed that the steady-state yields of cell mass from carbohydrates were practically constant for the range of dilution rates assayed, equaling 0.535 ± 0.030, 0.456 ± 0.033, and 0.491 ± 0.035 g biomass/g carbohydrate, when glucose, maltose, and starch, respectively were used as carbon sources. No α-amylase activity was detected when glucose was used as the carbon source in the influent medium, indicating that α-amylase synthesis of C. wangnamkhiaoensis is catabolically repressed by glucose. Contrastingly, maltose and starch induce synthesis of α-amylase in C. wangnamkhiaoensis, with starch being the best α-amylase inducer. The highest α-amylase volumetric and specific activities (58400 ± 800 U/L and 16900 ± 200 U/g biomass, respectively), and productivities (14000 ± 200 U/L·h and 4050 ± 60 U/g biomass·h, respectively) were achieved at a dilution rate of 0.24 h-1 using starch as the carbon source. In conclusion, single-stage steady-state continuous culture in an airlift bioreactor represents a powerful tool, both for studying the regulatory mechanisms of α-amylase synthesis by C. wangnamkhiaoensis and for α-amylase production. Furthermore, results showed that C. wangnamkhiaoensis represents a potential yeast species for the biotechnological production of α-amylase, which can be used for the saccharification of starch. This offers an attractive renewable resource for the production of biofuels (particularly bioethanol), representing an alternative to fossil fuels with reduced cost of substrates.

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“…(15%) and after Colletotrichum sp. (30%) (Klaic et al 2015). The process of developing a bioherbicide is complex, and the crop protection research groups must consider several questions.…”

Section: Phoma As Biological Control Agent For Weedsmentioning

confidence: 99%

The Genus Phoma: A Review of Its Potential Bioactivities, Implications, and Prospects

Luft¹,

Confortin²,

Todero³

et al. 2021

Phoma: Diversity, Taxonomy, Bioactivities, and Nanotechnology

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An overview regarding bioherbicide and their production methods by fermentation

Cited by 17 publications

References 80 publications

Effects of Bipolaris yamadae strain HXDC‐1‐2 as a bioherbicide against Echinochloa crus‐galli in rice and dry fields

Effects of Bipolaris yamadae strain HXDC‐1‐2 as a bioherbicide against Echinochloa crus‐galli in rice and dry fields

Production of extracellular α-amylase by single-stage steady-state continuous cultures of Candida wangnamkhiaoensis in an airlift bioreactor

The Genus Phoma: A Review of Its Potential Bioactivities, Implications, and Prospects

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