Production of cellulolytic and pectolytic enzymes by Cercospora arachidicola

Alabi, R.O.; Naqvi, S.H.Z.

doi:10.1016/s0007-1536(77)80024-7

Cited by 14 publications

(4 citation statements)

References 6 publications

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“…TAG 24 is a semi-dwarf variety, the disease scores of RP and ILs indicates that the plant architecture itself might not contribute to disease development, however in the presence of disease resistant QTLs, some of the physiological components would have been triggered leading to higher levels of resistance in the ILs of TAG 24 genetic background. Alabi and Naqvi (1977) attributed LLS resistance in groundnut to the presence of different chemical constituents in leaves and seeds. Motagi (2001) reported presence of oxidative enzymes such as, peroxidase, catalase and superoxide dismutase in leaves in response to stress is an important mechanism.…”

Section: Discussionmentioning

confidence: 99%

G × E interactions in QTL introgression lines of Spanish-type groundnut (Arachis hypogaea L.)

et al. 2020

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Multi-environment testing at five locations for rust and late leaf spot (LLS) resistance with 41 introgressed lines (ILs) bred using marker-assisted backcross breeding in the genetic background Spanish-type groundnut varieties identified significant genotype, and genotype 9 environment interactions (GEI) for LLS disease resistance and yield parameters. Significant GEI effects suggest the need to identify location specific breeding lines to achieve gains in pod yield and LLS resistance. The observed variable LLS disease reaction among the ILs in part suggests influence of background genotype on the level of resistance. A breeding scheme with early generation selection using molecular markers followed by phenotyping for LLS, and multi-location testing of fixed breeding lines was optimized to enhance selection intensity and accuracy in groundnut breeding. The ILs, ICGVs 14431, 14436 and 14438 with pooled LLS score at 90 DAS of 3.5-3.7 were superior to respective recurrent parent for pod yield, with early maturing similar to recurrent parents. The pod yield advantage Electronic supplementary material The online version of this article (

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Section: Discussionmentioning

confidence: 99%

G × E interactions in QTL introgression lines of Spanish-type groundnut (Arachis hypogaea L.)

et al. 2020

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“…It has been shown that phytopathogenic isolates of Pseudocercospora ocellata (= Cercospora theae ) produce various carbohydrases, pectinase, protease, and amylase during attack on tea plants, suggesting that these enzymes may be imparted to leaves during infection and can be involved in induction of pathogenesis and penetration of plant material [ 112 ]. The ability to produce cellulolytic (CMCase) and pectolytic (polygalacturonase) enzymes has also been demonstrated in the case of Cercospora arachidicola [ 117 ]. In turn, light-dependent synthesis of esterase has been showed in liquid cultures of C. beticola [ 118 ].…”

Section: Enzymes Involved In the Plant-pathogen Interactionmentioning

confidence: 99%

Phytopathogenic Cercosporoid Fungi—From Taxonomy to Modern Biochemistry and Molecular Biology

Świderska-Burek

Daub

Thomas

et al. 2020

IJMS

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Phytopathogenic cercosporoid fungi have been investigated comprehensively due to their important role in causing plant diseases. A significant amount of research has been focused on the biology, morphology, systematics, and taxonomy of this group, with less of a focus on molecular or biochemical issues. Early and extensive research on these fungi focused on taxonomy and their classification based on in vivo features. Lately, investigations have mainly addressed a combination of characteristics such as morphological traits, host specificity, and molecular analyses initiated at the end of the 20th century. Some species that are important from an economic point of view have been more intensively investigated by means of genetic and biochemical methods to better understand the pathogenesis processes. Cercosporin, a photoactivated toxin playing an important role in Cercospora diseases, has been extensively studied. Understanding cercosporin toxicity in relation to reactive oxygen species (ROS) production facilitated the discovery and regulation of the cercosporin biosynthesis pathway, including the gene cluster encoding pathway enzymes. Furthermore, these fungi may be a source of other biotechnologically important compounds, e.g., industrially relevant enzymes. This paper reviews methods and important results of investigations of this group of fungi addressed at different levels over the years.

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“…They degrade the pectic substances of the middle lamella which is made up of galacturonic acid units joined by a α-1,4 glycosidic linkages [19] (Talboys and Busch). The ability of pathogens to produce pectic enzymes capable of degrading the host tissues is an important factor in virulence [10,20] (Wood, Alabi and Naqvi). Pectic enzymes can be divided into two major groups [21] (Dube and Bilgrami).…”

Section: Types Of Pectinases (Cell Wall Degrading Enzymes)mentioning

confidence: 99%

“…The enzyme polygalacturonase, cellulase, pectin methylesterase and pectin transeliminase play important roles in the deterioration of cocoa beans by Penicillium steckii [38] (Olutiola). Some environmental and chemical factors greatly influence the activity of pectic enzymes as shown by many researchers [11,20] …”

Section: Types Of Pectinases (Cell Wall Degrading Enzymes)mentioning

confidence: 99%

Modification of Cell Wall Degrading Enzymes from Soursop (Annona muricata) Fruit Deterioration for Improved Commercial Development of Clarified Soursop Juice (A Review)

Adedeji¹

2014

Med Aromat Plants

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Production of cellulolytic and pectolytic enzymes by Cercospora arachidicola

Cited by 14 publications

References 6 publications

G × E interactions in QTL introgression lines of Spanish-type groundnut (Arachis hypogaea L.)

G × E interactions in QTL introgression lines of Spanish-type groundnut (Arachis hypogaea L.)

Phytopathogenic Cercosporoid Fungi—From Taxonomy to Modern Biochemistry and Molecular Biology

Modification of Cell Wall Degrading Enzymes from Soursop (Annona muricata) Fruit Deterioration for Improved Commercial Development of Clarified Soursop Juice (A Review)

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