&lt;b&gt;&lt;i&gt;Pochonia chlamydosporia&lt;/i&gt; promotes the growth of tomato and lettuce plants

Dallemole-Giaretta, Rosângela; Freitas, Leandro Grassi de; Lopes, E. A.; Silva, Marliane de Cássia Soares da; Kasuya, Maria Catarina Megumi; Ferraz, S.

doi:10.4025/actasciagron.v37i4.25042

Cited by 28 publications

(11 citation statements)

References 21 publications

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“…The nematophagous fungus Pc has recently been found as a natural component of the banana rhizosphere in Canary Islands (Spain) [43]. This fungus has been found as an endophyte in several crops promoting their development [23][24][25]. In this paper, we propose the use of Pc as endophytic biological control agent (EBCA) in banana plants to improve crop yield.…”

Section: Discussionmentioning

confidence: 99%

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Isolates of the Nematophagous Fungus Pochonia chlamydosporia Are Endophytic in Banana Roots and Promote Plant Growth

2020

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The biocontrol fungus Pochonia chlamydosporia colonizes banana roots endophytically. Root hairs and root surface were colonized by a stable GFP (green fluorescent protein) transformant of the fungus. Hyphal penetration in root cells was also observed. Spores of P. chlamydosporia 123, significantly increase root and leaf length and weight in banana plantlets (Musa acuminata cv. ‘Dwarf Cavendish’) in growth chamber experiments 30 days post-inoculation. In greenhouse 8-L pot experiments, P. chlamydosporia 123 spore inoculation significantly increases root, corm and leaf length, and leaf weight in banana plants (75 days post-inoculation). Spore inoculation of P. chlamydosporia strains from diverse origin (Pc21, Pc123, Pc399, and Pccat), significantly increase root, corm and leaf length and weight in banana plantlets. Pc21 from Italy was the best colonizer of banana roots. Consequently, this strain significantly increases banana root and leaf length most. Root colonization by P. chlamydosporia was also detected using cultural techniques and qPCR.

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Section: Discussionmentioning

confidence: 99%

“…Pc can colonize a large variety of crops such as tomato, lettuce, and wheat and promote their growth. [23][24][25]. This is due to production of secondary metabolites such as cytokinins, gibberellic acid, ethylene, and other metabolites [20,21,[26][27][28] during plant colonization by Pc.…”

Section: Introductionmentioning

confidence: 99%

Isolates of the Nematophagous Fungus Pochonia chlamydosporia Are Endophytic in Banana Roots and Promote Plant Growth

2020

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“…According to the results regarding the morphological assessments, the differences observed above were due to the mechanism of action of the biological control agents, which can be by competition, antibiosis, and parasitism (DEMIRCI et al, 2011). Microorganisms can stimulate plant growth directly through the production of hormones, biological nitrogen fixation, phosphorus solubilization, acceleration of the mineralization process, and siderophore production, and indirectly through the induction of systemic resistance, production of antibiotics, and antagonism towards pathogens (DALLEMOLE-GIARETTA et al, 2015). Lavras, v. 14, n. 2, p. 147 -156, apr./jun.…”

Section: Resultsmentioning

confidence: 99%

BIOLOGICAL CONTROL: ISOLATED AND IN MIXTURES AND GENETIC CONTROL OF Meloidogyne exigua IN COFFE

Tolardo

Alves

Silva

et al. 2019

C.Sci.

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<em>Meloidogyne exigua</em> is one of the most found species of nematodes in coffee plantations in the Brazilian Cerrado. Thus, the objective of the present study was to evaluate the efficiency of biological agents on two coffee cultivars. The experiment was carried out in a greenhouse using a completely randomized design. The treatments were arranged in a 2x3 factorial scheme, using repeated measures (two cultivars, 3 nematicides, and 2 additional controls), and were composed of two genotypes (Mundo Novo IAC 376-4 and IPR-100), three biological nematicides (B. methylotrophicus, B. subitilis, and T. asperellum), and two treatments including the three nematicides together, totaling 8 treatments and 2 controls, with 6 replicates each. The plants were inoculated with 3,780 eggs and J2s of the respective nematode. Throughout 150 days, the following variables were evaluated monthly: plant height, stem diameter, number of leaf pairs, and chlorophyll contents. At the end of this period (DAI), the reproductive factor (RF), egg mass and gall index were analyzed. About FR, the results were lower (<1) when using the cultivar IPR-100 when compared to the Mundo Novo genotype, denoting adequate genetic control. On the other hand, in the treatments with the susceptible genotype, high FRs were verified, ranging from 2.64 to 5.68 in the control. It was concluded that the bacterial mixtures were efficient in the control, and B.<em> methylotrophicus</em> contributed to higher plant height in the IPR 100 genotype.

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“…This microbiota plays an extremely important role in protecting the plant against pathogenic microorganisms present in the soil, as well as nematodes, which are important parasites of tomato plants (Martínez-Medina et al, 2017). In addition, it is important to note that the isolation and identification of these microorganisms stimulates studies with the aim of using certain species for the control of nematodes in tomato cultivation (Dallemole-Giaretta et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Fungal and bacterial population from spent mushroom substrate used to cultivate tomato plants

et al. 2020

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The production of tomato seedlings is conducted on commercial substrates with adequate properties for the good formation of the aerial part and root. The Spent Mushroom Substrate, or SMS, presents advantages over commercial substrates regarding the quality of the vegetable seedlings, which may be provided by the presence of a rich microbiota, bringing higher balance and competition with pathogenic microorganisms, in addition to the biological control of pathogens and nematodes. It is important to know the microbiota present in this material and its relation to the plant, in order for this association to occur in the best manner possible. This work had the objective of identifying the microbiota present in the rhizosphere of tomato seedlings produced in SMS of Agaricus subrufescens and Agaricus bisporus mushrooms, added or not with commercial substrate. The microbiota was analyzed by DGGE and the representative samples were sequenced in order to identify the species. Among the eukaryotes, the Chaetomium globosum, Arthrobotrys amerospora species were predominant in the A. subrufescens SMS, and Geastrum floriforme, Chrysosporium chiropterum, Pleurotus sp., and Trichosporon sp. in the A. bisporus SMS. Prokaryotes are the most diverse group, suggesting a large number of species not yet classified or which sequences are not yet available.

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<b><i>Pochonia chlamydosporia</i> promotes the growth of tomato and lettuce plants

Cited by 28 publications

References 21 publications

Isolates of the Nematophagous Fungus Pochonia chlamydosporia Are Endophytic in Banana Roots and Promote Plant Growth

Isolates of the Nematophagous Fungus Pochonia chlamydosporia Are Endophytic in Banana Roots and Promote Plant Growth

BIOLOGICAL CONTROL: ISOLATED AND IN MIXTURES AND GENETIC CONTROL OF Meloidogyne exigua IN COFFE

Fungal and bacterial population from spent mushroom substrate used to cultivate tomato plants

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