Induction of Extracellular Lytic Enzymes by  &amp;lt;i&amp;gt;Fusarium solani&amp;lt;/i&amp;gt;

Moctezuma-Zárate, María de Guadalupe; Vargas-Morales, Juan Manuel; González, Juan Fernando Cárdenas; Juárez, Víctor Manuel Martínez; Rodríguez, Ismael Acosta

doi:10.4236/aim.2013.38a005

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…Thus some genotypes lost energy in overcoming disease stress, even when no disease symptoms were apparent; a finding similar to Alwathnani and Perveen, (2012). The Fusarium pathogen interrupts enzyme activity, especially those related to pathogenicity including cellulase, lipase, protease, pectinase and many others (de Guadalupe Moctezuma- Zárate et al, 2013). Changes in the activity of phenol-oxidizing enzymes also disrupt the metabolic pathways in damaged tissues (Mehrotra and Agarwal, 2003).…”

Section: Discussionmentioning

confidence: 94%

“…These diseases commonly cause root rots and wilt. F. solani causes foot rot and can survive indefinitely as a saprophyte in organic matter (as chlamydoconidia) and is not transmitted via seed (de Guadalupe Moctezuma-Zárate et al, 2013). Foot rot of tomato was first reported in Australia in1975 (Vawdrey and Peterson, 1988) and was later observed in California in 1991 (Cucuzza et al, 1992).…”

Section: Introductionmentioning

confidence: 99%

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Distribution of organic metabolites after Fusarium wilt incidence in tomato (Solanum lycopersicum L.)

Alsamir¹,

Mahmood²,

Ahmad³

et al. 2017

Aust J Crop Sci

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Tomato is an important vegetable crop worldwide and Fusarium wilt is a significant disease of tomato in many countries. One hundred and fifty three diverse tomato genotypes collected from local and exotic sources were screened for resistance to F. solani in the greenhouse. Significant variation in genotype response to inoculation was observed. The organic metabolite profiles of resistant and susceptible genotypes were assessed to determine the basis of resistance. Significant genetic variation was observed for ABA, malic acid, citric acid, fructose, glucose, sucrose, L-proline and myo-inositol. The disease treatment produced significant changes in fructose, glucose, proline and sucrose and significant genotype-by-treatment interaction was observed for ABA, citric acid, fructose, glucose, malic acid and sucrose, indicating that genetic improvement of these traits is feasible. Disease incidence was strongly associated with citric acid (R 2 = 0.84), sucrose (R 2 = 0.72) and L-proline (R 2 = 0.76). Principal component analysis confirmed that citric acid and L-proline were important in determining plant disease response. Genetic variation for Fusarium wilt resistance can be used to develop new tomato cultivars with improved disease resistance.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Distribution of organic metabolites after Fusarium wilt incidence in tomato (Solanum lycopersicum L.)

Alsamir¹,

Mahmood²,

Ahmad³

et al. 2017

Aust J Crop Sci

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“…Phytopathogenic fungi can secrete a variety of cell wall degrading enzymes, which will act in the degradation of pectin, a major polymer of plant cell wall, leading to the maceration of plant tissues. CWDEs may serve different purposes for the pathogen during infection, such as branching and penetration into the host tissue, release of nutrients or interference with plant defense response (14). Pectic substances are found in primary cell wall and middle lamella structure and are grouped according to the degree of polymerisation of galacturonic acid (pectin or pectic acid).…”

Section: Resultsmentioning

confidence: 99%

exoenzymes as a pathogenicity factor for Colletotrichum gloeosporioides associated with coffee plants

et al. 2019

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Phytopathogenic fungi during the penetration and colonization process are capable of secreting several enzymes, which enable infection of the host live tissue, acting on the degradation of wax, cuticle and cell walls. The ability of a pathogenic agent to produce enzymes or not can determine the severity degree of a disease. In this study, 33 isolates of Colletotrichum gloeosporioides related to anthracnose and blister spot on coffee trees were evaluated for their ability to produce hydrolytic enzymes (amylase, lipase, protease, laccase, pectinase and cellulase) and specific cell wall degrading enzymes “CWDEs” (polygalacturonase, polymethylgalacturonase and pectin-lyase), as well as their relationship with the pathogenicity/aggressiveness of isolates. For all isolates of C. gloeosporioides, extracellular enzymes could be detected, except cellulases. Isolates I-9 and I-24 produced the highest levels of extracellular enzymes, as well as CWDEs. They also had the highest disease intensity indexes, suggesting a relationship between enzymes and aggressiveness of the isolates.

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“…However, for larger-scale production, the use of this carbon source would not be economically profitable. In contrast, Moctezuma-Zárate et al [45] obtained maximum xylanolytic activity (47.5 ng xylose/min•mg protein) from F. solani through a fermentation liquid medium supplemented with xylan (Sigma) as inductor.…”

Section: Discussionmentioning

confidence: 94%

Comparative Study of the Extracellular Holocellulolytic Activity of Fusarium solani and Aspergillus sp. in Corn Stover

Alvarez-Navarrete,

Alonso-Hurtado,

Flores-García

et al. 2024

Fermentation

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Fungal holocellulases are interesting for their possible applications in the bioconversion of corn crop residues into molecules with technological significance. Holocellulase (xylanases and cellulases) production from Fusarium solani and Aspergillus sp. with corn stover as a carbon source was compared using a Box–Wilson design. The fungal holocellulase production was different in both fungi. For F. solani, the maximum endoxylanase and β-xylosidase activities were 14.15 U/mg and 0.75 U/mg at 84 h of fermentation on 350 g/L corn stover, while Aspergillus sp. was 5.90 U/mg and 0.03 U/mg, respectively, at 156 h and 1000 g/L corn stover. The production of holocellulases in both fungi was reduced with increasing carbon sources. The nitrogen source induced the holocellulases in Aspergillus sp., but not in F. solani. Interestingly, when verifying the optimal culture conditions, the production of endoxylanases by F. solani was higher when compared to the predicted value. With regard to the endoxylanase and β-xylosidase activities of Aspergillus sp., these were close to the predicted values. Based on the optimization model, F. solani and Aspergillus sp. produce an interesting holocellulolytic activity in a growth medium with corn stover as the only carbon source. The fermentation time and the amount of corn stover required to obtain maximum holocellulase production are possible advantages for Fusarium solani and Aspergillus sp., respectively.

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Induction of Extracellular Lytic Enzymes by <i>Fusarium solani</i>

Cited by 8 publications

References 15 publications

Distribution of organic metabolites after Fusarium wilt incidence in tomato (Solanum lycopersicum L.)

Distribution of organic metabolites after Fusarium wilt incidence in tomato (Solanum lycopersicum L.)

exoenzymes as a pathogenicity factor for Colletotrichum gloeosporioides associated with coffee plants

Comparative Study of the Extracellular Holocellulolytic Activity of Fusarium solani and Aspergillus sp. in Corn Stover

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