The Isolation of Catechol From Pigmented Onion Scales and Its Significance in Relation to Disease Resistance in Onions

Link, Karl Paul; Walker, J. C.

doi:10.1016/s0021-9258(18)75955-3

Cited by 101 publications

(5 citation statements)

References 4 publications

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“…Specifically, prohibitins were defined as "preformed inhibitory substances that confer some degree of protection to the host plants against microorganisms" [2]. Early reports on prohibitins described the isolation of protocatechuic acid [4] and catechol [5] from pigmented onion scales (Allium cepa L.) and their role in disease resistance to Colletotrichum circinans (Berk.) Voglino [6].…”

Section: Introductionmentioning

confidence: 99%

Plant Chemical Defenses: Are all Constitutive Antimicrobial Metabolites Phytoanticipins?

Pedras

Yaya

2015

Natural Product Communications

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A critical perspective on phytoanticipins, constitutive plant secondary metabolites with defensive roles against microbes is presented. This mini-review focuses on the chemical groups and structural types of defensive plant metabolites thus far not reviewed from the phytoanticipin perspective: i) fatty acid derivatives and polyketides, ii) terpenoids, iii) shikimates, phenylpropanoids and derivatives, and iv) benzylisoquinoline and pyrrolizidine alkaloids. The more traditional groups of phytoanticipins are briefly summarized, with particular focus on the latest results: i) benzoxazinoids, ii) cyanogenic glycosides, iii) glucosinolates and their metabolic products, and iv) saponins. Current evidence suggests that a better understanding of the functions of plant metabolites will drive their application to protect crops against microbial diseases.

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Section: Introductionmentioning

confidence: 99%

Plant Chemical Defenses: Are all Constitutive Antimicrobial Metabolites Phytoanticipins?

Pedras

Yaya

2015

Natural Product Communications

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“…This indicated the resistance of KJ against P. infestans. Link and Walker (1933) found resistance of red or yellow pigmented varieties of onion to Colletotrichum circinans was due to higher concentration of phenolic acids, catechol and protocatechuic acid in the scale leaves. Germination of Peronospora tabacina was greatly reduced on leaves of Nicotiana tobacum, compared to other tobacco species (Shepherd and Mandryk, 1963).…”

Section: Discussionmentioning

confidence: 94%

Effect of leaf leachates of potato plants on germination of Phytophthora infestans sporangia and zoospores

Bithel

Deepika

2007

ECJ

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Leaf leachates of two cultivars of potato i.e. Kufri Chandramukhi (KCM) and Kufri Jyoti (KJ ) contain nine amino acids. Total sugar content of KCM and KJ leachates varied between 0.10 and 0.37 µg per sq. cm and 0.02 to 0.23 µg per sq. cm. respectively. The sugars exuded more by KCM. Total phenol content of KCM and KJ leachates varied between 1.00 to 2.0 µg per sq. cm and 1.05 to 3.16 µg per sq. cm respectively. The percentage germination of P. infestans sporangia in KCM and KJ cultivars was more in mature leaf leachates as compared to young leaves, moreover it was less in KJ cultivar as compared to KCM. The germ tube length of P. infestans zoospores in leaf leachates was inhibited in both the cultivars except in mature leaf leachate of 94 days old Ku fri Chandramukhi.

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“…For example, resistance to gooseberry mildew was associated with vac uolization of the epidermal cells (33); whereas, resistance to loose smut of barley was attrib utable to pollination taking place while the head was still in the boot (28). Some hori zontal resistance is biochemical, e.g., the classic example of the resistance of red or brown onions to smudge (22).…”

Section: E a Kerrmentioning

confidence: 99%

Breeding for Stable Resistance to Diseases1

Kerr¹

1983

horts

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In this review, some suggestions will be made as to what we must do, or continue to do, to keep vegetable diseases under control. The word “stable” will be emphasized throughout. Most of the examples are from tomato diseases, although equally good or better ones could probably be found in other crops. My main experience, however, has been with tomato and especially with leaf mold. The gene-for-gene designation of leaf mold races will be used, although it is too complicated for day-to-day use.

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The Isolation of Catechol From Pigmented Onion Scales and Its Significance in Relation to Disease Resistance in Onions

Cited by 101 publications

References 4 publications

Plant Chemical Defenses: Are all Constitutive Antimicrobial Metabolites Phytoanticipins?

Plant Chemical Defenses: Are all Constitutive Antimicrobial Metabolites Phytoanticipins?

Effect of leaf leachates of potato plants on germination of Phytophthora infestans sporangia and zoospores

Breeding for Stable Resistance to Diseases1

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