Insect growth inhibitor activity of arjunolic acid isolated from Cornus capitata

An inhibitory effect on the growth of Lemna minor L. cultures has been demonstrated in xylem exudate from Vitis vinifera L. var. Waltham Cross bled from canes cut near the time of budburst. Most inhibitory activity was detected up to the time of maximal daily exudation, which corresponded closely with budburst. After this time the inhibitory activity rapidly disappeared. A similar pattern occurred in each of the 3 years of the study, 1988-1990. Using ultrafiltration, it was shown that most of the growth inhibitor activity of the crude exudate was located in the 0.5-10 kDa fraction. This fraction exhibited a seasonal variation in its bioactivity similar to that ofthe crude exudate samples. The 0.5-10 kDa fraction was found to contain abscisic acid but not in a sufficient quantity to account for the inhibitory effects. When chromatographically separated fractions corresponding to oligosaccharides were pooled, biological activity equivalent to that of the crude exudate was retained, which provides evidence that the inhibitor is possibly an oligosaccharide.

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Chemical Compounds and Biologic Activities: A Review of Cedrela Genus

Molecules ◽

10.3390/molecules25225401 ◽

2020 ◽

Vol 25 (22) ◽

pp. 5401

Author(s):

Thalya Soares R. Nogueira ◽

Michel de S. Passos ◽

Lara Pessanha S. Nascimento ◽

Mayara Barreto de S. Arantes ◽

Noemi O. Monteiro ◽

...

Keyword(s):

Wood Quality ◽

Growth Inhibitor ◽

Chemical Compounds ◽

Characteristic Class ◽

Economic Interest ◽

Species Trees ◽

Insect Growth ◽

Phytochemical Studies

The genus Cedrela P. Browne, which belongs to the Meliaceae family, has eighteen species. Trees of this genus are of economic interest due to wood quality, as well as being the focus of studies because of relevant biologic activities as in other Meliaceae species. These activities are mainly related to limonoids, a characteristic class of compounds in this family. Therefore, the aim of this review is to perform a survey of the citations in the literature on the Cedrela genus species. Articles were found on quantitative and qualitative phytochemical studies of the Cedrela species, revealing the chemical compounds identified, such as aliphatics acid and alcohol, flavonoids, tocopherol, monoterpenes, sesquiterpenes, triterpenes, cycloartanes, steroids, and limonoids. Although some activities were tested, the majority of studies focused on the insecticidal, antifeedant, or insect growth inhibitor activities of this genus. Nonetheless, the most promising activities were related to their antimalarial and antitripanocidal effects, although further investigations are still needed.

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Growth Inhibitor Activity in Xanthium in Relation to Photoperiodism

PLANT PHYSIOLOGY ◽

10.1104/pp.29.6.533 ◽

1954 ◽

Vol 29 (6) ◽

pp. 533-536 ◽

Cited By ~ 2

Author(s):

A. K. Khudairi ◽

Erik K. Bonde

Keyword(s):

Growth Inhibitor ◽

Inhibitor Activity

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Seleksi Bakteri Endofit Penghasil Senyawa Metabolit untuk Pengendalian Cendawan Patogen Terbawa Benih Jagung

Jurnal Fitopatologi Indonesia ◽

10.14692/jfi.12.5.149 ◽

2017 ◽

Vol 12 (5) ◽

pp. 149

Author(s):

Andini Hanif ◽

Bonny Poernomo Wahyu Soekarno ◽

Abdul Munif

Keyword(s):

Endophytic Bacteria ◽

High Growth ◽

Growth Inhibitor ◽

Antifungal Compound ◽

Pseudomonas Sp ◽

Sterile Soil ◽

Inhibitor Activity ◽

Tobacco Leaves ◽

Seedborne Fungi ◽

Fusarium Sp

Endophytic bacteria have been reported to produce metabolite as antifungal compound. This study was aimed to obtain endophytic bacteria which are able to produce metabolite to control Fusarium sp., a potential seedborne fungi on maize. Endophytic bacteria were screened by hypersensitive test on tobacco leaves and antagonistic test. Endophytic bacteria isolates with high growth inhibitor activity were selected and examined for their metabolite compound. Thre isolates, i.e. Lactobacillus sp. isolate EF14III, Pseudomonas sp. isolate ER1I, dan Aeromonas sp. isolate ER10I has the potential to inhibit Fusarium sp.. Metabolite compound of Pseudomonas sp. isolates ER1I was able to decrease the infection Fusarium sp. by 65.0% in blotter test and decreased infection of Fusarium sp. up to 59.5% and 60.5% in growing on test using water agar and sterile soil, respectively. Cyclohexanone with concentration of 9.68% produced by Pseudomonas sp. isolat ERI1 may play a role as antifungal compound.

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