Utilization of compost tea for biochemical response assessment associated with resistance to phytopathogen causing leaf spot in Melicope ptelefolia

Din, Abd Rahman Jabir Mohd; Hanapi, Siti Zulaiha; Futamata, Hiroyuki; Sarmidi, Mohamad Roji

doi:10.1007/s13165-018-0235-9

Cited by 3 publications

(2 citation statements)

References 40 publications

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“…Next to the sequence-based approach, we also explored the active and culturable bacteria in these CTs. We specifically focused on the presence of lactic acid bacteria as several studies have described the presence of these bacteria in CTs (Naidu et al 2010; Mohd Din et al 2018; M. J. Kim et al 2015) and their potential beneficial role on the plant (Lamont et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Compost Teas: market survey and microbial analysis

Legein

Beeck

Muyshondt

et al. 2022

Preprint

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Compost teas (CTs) are fermented watery compost extracts that can be made with a wide variety of organic ingredients. These extracts are applied on plants to promote plant growth and increase protection against pathogens. Several studies have shown that the live micro-organisms present in these teas play an important role in plant protection. Still, our knowledge on the identity and functionality of bacterial communities in CTs remains limited. Moreover, CTs are a heterogeneous group, as various combinations of ingredients, fermentation parameters and application guidelines are possible and little is known on the current practices in commercially available products. Consequently, also the microbial communities in these commercially available CTs are unknown. Here, we surveyed 68 CTs on ingredients, claims and guidelines regarding preparation and application. This revealed that most products were sold in dried form which needed to be rehydrated by the customers. Moreover, kelp, humic acid, sugar and molasses, were common ingredients. Additionally, we investigated the bacterial communities of eight products, covering different ingredients and preparations, using sequencing and culture-based techniques. Bacterial communities were remarkably similar at genus level, with Pseudomonas, Massilia, Comamonas, Chryseobacterium, Brevundimonas and Acinetobacter as most prevalent genera. The genus Pseudomonas was more abundant in CTs that were prepared without aeration. Moreover, differences between liquid and dry products revealed the importance of formulation to secure the viability of the desired microbes. This study has given insight in common practices in CTs on the market, their microbial composition, and highlighted several discrepancies with current literature.

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Section: Discussionmentioning

confidence: 99%

Compost Teas: market survey and microbial analysis

Legein

Beeck

Muyshondt

et al. 2022

Preprint

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“…A literature survey showed how additives might have a role in suppressive functionalities and have a potential to help the definition of the systematic production of CTs suitable for plant disease management [5]. Mohd Din et al [45] pointed up as an aerated CT added with molasses sourced from oil palm, was able to suppress Grammothele lineata on the Malaysian plant Melicope ptelefolia. CTs have a great potential to suppress both air and soil-borne pathogens [46], as also indicated here by the in vitro and in vivo experiments.…”

Section: Discussionmentioning

confidence: 99%

Effects of Organic Additives on Chemical, Microbiological and Plant Pathogen Suppressive Properties of Aerated Municipal Waste Compost Teas

Palese¹,

Pane²,

Villecco³

et al. 2021

Applied Sciences

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The aim of the present study was to characterize the physical-chemical and microbiological features of aerated compost teas (CTs) extracted with dechlorinated tap water and with two different additives, molasses and whey, in increasing doses. Plant pathogen suppression properties of CTs were also taken into account. Total nitrogen in CTs increased with rising doses of the additives used. In spite of this, nitrogen and mineral element contributions were limited but complementary for plant mineral nutrition. Although total heavy metal contents in CTs were low, an increase of their bioavailable forms (ionic and chelated forms, presence in microorganisms) should be taken into account. In addition, the distribution on soil of acid and/or chelating products by CTs could increase the bioavailability of heavy metals, especially in the case of several annual distribution cycles and of medium–long term treatments. Additives modulated the structure and composition of microbial communities and CTs, exhibiting a broad spectrum of suppressive properties against plant pathogens, especially when they were used in a raw form.

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