Short Communication: The potential of various indigenous Trichoderma spp. to suppress Plasmodiophora brassicae the pathogen of clubroot disease on cabbage

Suada, I Ketut

doi:10.13057/biodiv/d180417

Cited by 4 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the experiment, it was observed that as the storage time of banana leaves increased, physical characteristics such as weight and color of the upper surface varied. Regarding leaf length and width, these values coincide with those reported by Suada [84], who obtained the following results: leaf length 257.70 ± 27.66 cm, and leaf width 70.23 ± 5.83 cm. On the other hand, Tan et al [7] determined that the percentage of juice extracted and filtered was 33% (v/p), and Chai et al [50] estimated a percentage of 36% (v/p); however, in this work, a maximum average value of 13% (v/p) was calculated.…”

Section: Determination Of Factors Affecting the Concentration Of Redu...supporting

confidence: 90%

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

et al. 2021

View full text Add to dashboard Cite

Bananas are one of the most important crops worldwide. However, a large amount of residual lignocellulosic biomass is generated during its production and is currently undervalued. These residues have the potential to be used as feedstock in bio-based processes with a biorefinery approach. This work is based on the valorization of banana leaf and has the following objectives (i) to determine the effect of certain physical and environmental factors on the concentration of glucose present in banana leaf extract (BLE), using a statistical regression model; (ii) to obtain Bacterial Nanocellulose (BNC), using BLE (70% v/v) and kombucha tea as fermentation medium. In addition, the physicochemical properties of BNC were evaluated by X-ray diffraction (XRD), Fourier transform infrared (FTIR), and thermogravimetric analysis (TGA). The results indicate that storage time, location, leaf color, and petiole type are factors related to BLE concentration, which is reduced by approximately 28.82% and 64.32% during storage times of five days. Regarding BNC biosynthesis, the results indicate that the highest yield, 0.031 g/g, was obtained at 21 days. Furthermore, it was determined that the highest production rate was 0.11 gL−1h−1 at 11 days of fermentation. By FTIR, it was determined that the purification step with NaOH (3M) should be carried out for approximately two hours. This research supports the development of a circular bioeconomy around the banana value chain, as it presents a way of bioprocessing residual biomass that can be used to produce bioproducts.

show abstract

Section: Determination Of Factors Affecting the Concentration Of Redu...supporting

confidence: 90%

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The genus Trichoderma is a well known soil-borne saprophytic fungus that is widely distributed in all soil types (Mera-jul et al 2012;Kalaivani et al 2014;Wu et al 2014). It is a good biocontrol agent as it suppressing the development of plant pathogens by producing antifungal enzymes such as chitinase and 1,3 gluconase (Harman 2006;Suada 2017). It also produces phytohormones such as auxins, which are required by plants (Haneefat et al 2012) to increase their resistance to drought stress (Yu et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of water content on conidia of Trichoderma spp., indole acetic acid content, electrical conductivity, and pH

et al. 2022

View full text Add to dashboard Cite

Abstract. Purwanto B, Sumadi, Nuraini A, Setiawati MR. 2022. Effect of water content on conidia of Trichoderma spp., indole acetic acid content, electrical conductivity, and pH. Biodiversitas 23: 2553-2560. Trichoderma sp. is a soil-borne saprophytic fungus that can increase plant resistance to combat drought stress. However, some species are unable to survive in a low water environment. Therefore, this research aimed to determine the effect of water content on different species of Trichoderma with respect to total conidial growth, IAA content, electrical conductivity (EC), and the media’s pH. A factorial Completely Randomized Design (CRD) with 2 factors, namely the water content of the media consisting of 3 levels (5%, 25%, and 50%) and the inoculation of Trichoderma spp. which includes Trichoderma harzianum, Trichoderma asperellum, and Trichoderma viride. Furthermore, an experimental method was adopted by analyzing the total conidial growth, indole acetic acid content (IAA), electrical conductivity (EC), and acidity (pH) of the media. Incubation was carried out for 14 days, data were analyzed using one way ANOVA, and Duncan's Multiple Distance Test was applied to determine the parameters that have a significant effect. The results showed that the total conidia of T. harzianum at the lowest water content (5% of the dry weight of the media) showed an increase from 7th to 14th days after inoculation (DAI), the highest was 23.6%, followed by T. asperellum (12.6%) and T. viride (10.7%). Similarly, the total conidia of Trichoderma spp. positively correlated with the levels of IAA, EC, and pH of the media. This indicates that an increase in total conidia is followed by an increase in the IAA content, EC, and pH. The highest total of T. harzianum conidial growth at the lowest water content indicated that it had better resistance to drought stress than T. asperellum and T. viride.

show abstract

Biocontrol of clubroot disease: how successful are endophytic fungi and bacteria?

Auer

Ludwig‐Müller

2023

Eur J Plant Pathol

View full text Add to dashboard Cite

The commercial aspect of growing Brassica crops has always been influenced by the worldwide occurrence of the clubroot pathogen, Plasmodiophora brassicae. Clubroot symptoms reduce crop yield dramatically and the resilient protist is hard to eradicate from infested soils. Chemical treatments are not so efficient and their use is allowed only in a few areas of the world, none of them in the EU. The majority of clubroot control is mediated by using resistant crops, but not all species have good or durable resistance sources available, and these can be overcome by evolving or new Plasmodiophora pathotypes. Some commercially available biocontrol agents have been tested and found to reduce clubroot on crops such as rapeseed, cauliflower and Chinese cabbage to some extent. More biocontrol organisms have been isolated and described in recent decades but for many commercial application is still a long way off. In this review we summarize trends for bacterial and fungal endophytes for clubroot biocontrol as well as mechanisms behind the effects reported, such as antibiosis, defense induction or competition for space and nutrients. There are indeed plenty of studies on biocontrol of clubroot but not many have reached a point where the biocontrol agents are ready to be applied at field scale. The potential of endophytic microbes in pest management against clubroot disease is huge.

show abstract

Short Communication: The potential of various indigenous Trichoderma spp. to suppress Plasmodiophora brassicae the pathogen of clubroot disease on cabbage

Cited by 4 publications

References 9 publications

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

Bacterial Nanocellulose Derived from Banana Leaf Extract: Yield and Variation Factors

Effect of water content on conidia of Trichoderma spp., indole acetic acid content, electrical conductivity, and pH

Biocontrol of clubroot disease: how successful are endophytic fungi and bacteria?

Contact Info

Product

Resources

About