Differential sensitivity of rice pathogens to growth inhibition by flavonoids

Padmavati, Manchikanti; Sakthivel, N.; Thara, K. V.; Reddy, A. R.

doi:10.1016/s0031-9422(97)00325-7

Cited by 147 publications

(89 citation statements)

References 20 publications

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“…This result was very interesting, because essential oils from several plant sources have been described as a potent natural bactericide for the control of various bacterial diseases of plants (Lo Cantore et al 2004;Iacobellis et al 2005). Studies suggest that plant pathogens have differential sensitivity to plant compounds (Padmavati et al 1997). The resistance of the Pseudomonas species to castor oils could be due to a co-evolutionary adaptation to the essential oils constituents.…”

Section: Resultsmentioning

confidence: 97%

Control of papaya fruits anthracnose by essential oil of Ricinus communis

Júnior

Freire²,

Moreira

et al. 2012

Braz. arch. biol. technol.

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Section: Resultsmentioning

confidence: 97%

Control of papaya fruits anthracnose by essential oil of Ricinus communis

Júnior

Freire²,

Moreira

et al. 2012

Braz. arch. biol. technol.

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“…Apart from growth inhibition, spore germination appears to be a developmental process which is readily stimulated or inhibited by a wide range of different flavonoids (see below), although most of evidence for this particular process might originate from its easy determination rather than from a truly preferential target for root-borne flavonoids. Flavonoids acting as inhibitors of spore germination include naringenin and kaempferol on the rice pathogen Pyricularia oryzae (Padmavati et al 1997) and, more recently, rutin on Verticillium dahliae (El Hadrami et al 2011). In contrast, pterocarpans, with the exception of trifolirhizin, stimulated germination of Fusarium solani (Ruan et al 1995).…”

Section: Effect Of Flavonoids On Phytopathogenic Fungimentioning

confidence: 99%

Plant-borne flavonoids released into the rhizosphere: impact on soil bio-activities related to plant nutrition. A review

et al. 2012

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Plants produce and release in the surrounding soil, the so-called rhizosphere, a vast variety of secondary metabolites. Among them, flavonoids are the most studied, mainly for their role in the establishment of rhizobiumlegume symbiosis; on the other hand, some studies highlight that they are also important in the plant strategies to acquire nutrients from the soil, for example, by acting on its chemistry. The scope of this review is to give a quick overview on the types and amounts of plant-released flavonoids in order to focus on their effects on soil activities that in turn can influence nutrient availability and so plant mineral nutrition; emphasis is given to the different nutrient cycles, soil enzyme, and soil bacteria activities, and their influence on soil macrofauna and roots of other plants. Finally, the possible outcome of the climate change on these processes is discussed.

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“…Legume plants flavonoids are engaged in the transcription of nodulation genes in symbiotic bacteria, in a highly specific interaction [6]. On the opposite, an antibacterial effect of flavonoids has been evidenced in pure cultures [18,26,27]. Flavonoids can alter the bioenergenetic status of the bacterial membrane: uncoupling of the energy transducing cytoplasmic membrane by flavonoids present in propolis has been reported [16].…”

Section: C2mentioning

confidence: 99%

Effects of Lavandula officinalis and Equisetum arvense dry extracts and isoquercitrin on the fermentation of diets varying in forage contents by rumen microorganisms in batch culture

Broudiscou

Lassalas

2000

Reprod. Nutr. Dev.

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-The short-term actions of Lavandula officinalis and Equisetum arvense dry extracts, and of isoquercitrin, flavonoid present in Equisetum arvense, on in vitro fermentation by rumen microbes were studied in batch culture. The orchard grass hay : barley ratios in the three experimental diets were 100:0, 75:25, 50:50 on a DM basis. The production rates of all volatile fatty acids except isobutyrate were strongly influenced by the composition of the diet and to a lesser extent, by plant extracts, with significant interactions between both factors. When hay was the only substrate, the addition of L. officinalis and E. arvense enhanced the fermentation rate by 50%, through an increased release of acetate and propionate. On the contrary, with the two other diets, the fermentation rate was strongly lowered by isoquercitrin. Gas outputs were not significantly influenced by plant extracts.isoquercitrin / plant-extract / rumen / microorganism / in vitro Résumé -Effet des extraits secs de prêle et de lavande et de l'isoquercitrine sur la fermentation de rations de teneurs en fourrage variables par les micro-organismes du rumen en mini-fermenteur. L'influence à court terme d'extraits de Lavandula officinalis et d'Equisetum arvense, et celle de l'isoquercitrine sur les fermentations par les microbes du rumen ont été étudiées en mini-fermenteurs. Les proportions, en MS, de foin de dactyle et d'orge dans les trois rations expérimentales étaient 100:0, 75:25, 50:50. Les productions de tous les acides gras volatils sauf l'isobutyrate ont été fortement influencées par la ration, puis par l'extrait végétal, avec des interactions significatives entre facteurs. Avec 100 % de foin, les extraits de L. officinalis et E. arvense ont augmenté les fermentations de 50 %, par une production accrue d'acétate et de propionate. Au contraire, avec les deux autres rations, les fermentations ont été diminuées par l'isoquercitrine. Les productions de gaz n'ont pas été significativement modifiées par l'apport d'extrait végétal. isoquercitrine / extrait végétal / rumen / micro-organisme / in vitro Reprod. Nutr. Dev. 40 (2000)

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Differential sensitivity of rice pathogens to growth inhibition by flavonoids

Cited by 147 publications

References 20 publications

Control of papaya fruits anthracnose by essential oil of Ricinus communis

Control of papaya fruits anthracnose by essential oil of Ricinus communis

Plant-borne flavonoids released into the rhizosphere: impact on soil bio-activities related to plant nutrition. A review

Effects of Lavandula officinalis and Equisetum arvense dry extracts and isoquercitrin on the fermentation of diets varying in forage contents by rumen microorganisms in batch culture

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