Phytotoxicity of three lactones from Nigrospora sacchari

Fukushima, Toshiro; Tanaka, Masayasu; Gohbara, Masatoshi; Fujimori, Takahiro

doi:10.1016/s0031-9422(97)01023-6

Cited by 62 publications

(49 citation statements)

References 13 publications

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“…A common feature of their structure is oxygen, both in the form of hydroxyl groups and lactone rings. The simplest structural molecules containing both the lactone ring and the hydroxy group are called monoterpenoid lactones (Ragas et al 2005, Ahmed et al 2004, Garg & Agarwal 1994, Fukushima et al 1998, Wong & Bron 2002, Chen et al 2010.…”

Section: Introductionmentioning

confidence: 99%

Loliolide - the most ubiquitous lactone

et al. 2015

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The searching for biologically active compounds produced by living organisms led to the discovery of a number of compounds with more or less complicated structure. One of the simplest molecules are monoterpenoid lactones and loliolide is the most common among them. Loliolide was found in animals (insects) and plants (flowers, shrubs, trees) both terrestrial and marine, such as algae and corals. Many years of research on plants used in traditional folk medicine of different countries have led to the conclusion that this compound has a variety of biological properties such as anti-cancer, antibacterial, antifungal and antioxidant ones. Moreover, plants containing loliolide are used in alternative medicine in treatment of diabetes and depression. It is extremely interesting that this lactone also affects the behavior of ants as well as the development of certain plants (allelopathic activity). However, sometimes there are side effects as in the case of structural analogues of loliolide contributing to extinction of tropical coral.

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Section: Introductionmentioning

confidence: 99%

Loliolide - the most ubiquitous lactone

et al. 2015

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“…Additionally, Fukushima et al [31] showed that purified phomalactone was able to induce water-soaked necrosis on leaves after 24 h of injection at 1000 ppm.…”

Section: Discussionmentioning

confidence: 99%

“…The cultures were kept at 25 º C on a rotary shaker (180 rpm for 10 days according to [29]) and the culture filtrate was then collected and freeze-dried. The procedure of Fukushima et al [31] was followed with some modification. Briefly, the crude filtrate was dissolved in 70% acetone and 0.1% Tween 80.…”

Section: Plant Hormonesmentioning

confidence: 99%

“…The full crude extracts of N. oryzae and N. sphaerica (grown on liquid medium supplemented with plant hormones) were introduced into detached leaves of date palm "Al-Sayer" as a sensitive cultivar [30] according to the procedure of Fukushima et al [31] to detect the effect of different plant hormones on the phytotoxicity of examined fungi. Results showed that at control treatment (no hormone), the first necrotic lesions were appeared after 3 days of treatment (5 μl of the crude extract) with N. oryzae and N. sphaerica; the lesion diameters were 1.33 and 1.03 cm; respectively.…”

Section: The Inhibitory Activity Of Different Plant Hormones On the Pmentioning

confidence: 99%

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In Vitro Antifungal Activity of Different Plant Hormones on the Growth and Toxicity of Nigrospora Spp. on Date Palm (Phoenix dactylifera L.)

Abass¹

2017

TOPSJ

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Objective:The profound negative impact of chemical fungicides on human and animal health, as well as, the whole agroecosystem encouraged tremendous efforts to find alternative approaches to suppress the growth of plant pathogens. Method:Recently, plant hormones have been considered to reduce fungal severity. Five different plant hormones namely 2, 4-D (2,4-Dichlorophenoxyacetic acid); BAP (6-Benzylaminopurine); Dicamba (3,6-Dichloro-2-methoxybenzoic acid, 3,6-Dichloro-o-anisic acid); IAA (Indole-2-acetic acid) and SA (Salicylic acid) were selected to examine their antifungal activity against the growth of two species of date palm fungal pathogen Nigrospora spp. Results:Results showed that SA at 50 ppm was sufficient to inhibit the mycelium growth of N. oryzae completely, while with N. sphaerica; the treatments of 2, 4-D (40-50 ppm) and SA (40-50 ppm) led to similar complete inhibition results of mycelium growth. The data of BAP and IAA indicated no toxic effect toward mycelium growth of the pathogens. Similar trends of results have been obtained for phytotoxicity bioassay which performed on detached date palm leaves, 2, 4-D and SA at 30 ppm led to a complete inhibition for the production of toxins in the culture of N. oryzae and N. sphaerica. Conclusion:58% significant reduction in toxin production was obtained with Dicamba 30 ppm. Results presented here reveal the antifungal activity of different plant hormones in in vitro experiments, and are important to examine their efficiency in farther field studies on date palm.

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“…Pectinolides A-C (13) exhibit significant antimicrobial and cytotoxic activity [27]. Phomalactone (14) displayed herbicidal, antibacterial and insecticidal activity [28] and kavalactones (15) display various and important biological properties such as sedative, anxiolytic, anti-inflammatory and analgesic effects [29,30].…”

Section: Introductionmentioning

confidence: 99%