Trafficking of molecules between parasitic plants and their hosts

Aly, Radi

doi:10.1111/wre.12025

Cited by 24 publications

(16 citation statements)

References 80 publications

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“…Upon establishment of a xylem‐to‐xylem connection, the parasite can extract host metabolites, nutrients and water from its host (e.g. Aly, ). In some cases, phenolic substances or lignins can be observed on the host roots where the parasite attempts to penetrate, indicating the existence of a host plant defence reaction (Neumann et al ., ).…”

Section: What Do We Know About the Plant Species R Fistulosa?mentioning

confidence: 99%

Rhamphicarpa fistulosa, a widespread facultative hemi‐parasitic weed, threatening rice production in Africa

Rodenburg¹,

Morawetz

Bastiaans

2014

Weed Research

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SummaryRhamphicarpa fistulosa is a facultative hemi-parasitic plant of the Orobanchaceae family, adapted to wet soils. Apart from tropical Australia, it is only found in sub-Saharan Africa, where it is considered a minor weed in cereal crops such as rice. Due to this status, the species has received only sporadic attention. Recent field observations and encounters with rice farmers in several African countries showed that R. fistulosa is, however, a more serious and increasing production constraint than previously thought. Results from a systematic literature review and a global herbarium study support this. The species has a broad distribution over Africa (at least 35 countries from Madagascar to Senegal and from Sudan to South Africa) and a wide range in altitude (0-2150 m a.s.l.) and environment (waterlogged swamps to moist free-draining uplands). Rhamphicarpa fistulosa is relatively independent and persistent because of the presumably wide host range, the facultative nature of its parasitism and its prolific seed (estimated 100 000 seeds m À2 under moderate infestation levels). Finally, R. fistulosa causes severe yield losses (average 60%) and high regional annual economic losses (estimated US $175 million), while effective control options are scant and awareness of the species among important R&D stakeholders is almost absent. An integrated approach is advocated to assist the rice sector to reduce current R. fistulosa-inflicted losses and to prevent further spread of the species into new areas.

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Section: What Do We Know About the Plant Species R Fistulosa?mentioning

confidence: 99%

Rhamphicarpa fistulosa, a widespread facultative hemi‐parasitic weed, threatening rice production in Africa

Rodenburg¹,

Morawetz

Bastiaans

2014

Weed Research

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“…It obtains its resources entirely from its host plants (Dawson et al 1994). Cuscuta-infested plants gradually become weak, resulting in decline in growth and yield (Aly 2013). In addition to its impact on ornamentals, native plants and forage crops, it has been reported that Cuscuta can suppress or kill vegetables and weeds (Fathoulla and Duhoky 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Natural extracts from plants and other organism for protecting crops from pathogens and pests have recently been reported. They protect plants without negatively affecting the growth and yield (Kapooria et al 2007, Aly 2013). An effective method of achieving crop protection is inducing resistance by activating natural protection system with elicitors that are environmentally safe.…”

Section: Introductionmentioning

confidence: 99%

Effects of carrageenan as elicitor to stimulate defense responses of basil against Cuscuta campestris Yunck

Mousavi¹,

Kalantari²,

Nasibi³

et al. 2018

Acta Botanica Croatica

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Cuscuta campestrisis a holostemparasitic plant that obtains its resources from its hosts. Sweet basil is an important commercial plant, widely cultivated in many countries. It is a common host forC. campestris. Generally,C. campestrishas negative effect on the growth of infected plants and its infestation is difficult to control. Therefore, environmental friendly control ofC. campestrisseems to be useful. In this work, the relationship betweenC. campestrisand its host, sweet basil, and effects of κ-carrageenan on protection againstC. campestrisand suppression of its invasion were studied. Basil was sprayed with a solution of carrageenan at a final concentration of 1 g L−1, once a week, 3 times in total. Infection of basil withC. campestriswas performed 2 days after the last carrageenan treatment and the plants were collected two weeks afterC. campestrisattachment. In this study, phenylalanine ammonia-lyase activity (PAL), phenolic, flavonoids and antioxidant content increased remarkably in the basil plants parasitized withC. campestris, and therefore it seems that the parasitic plant induced a defense response in the host plants. Treatment with carrageenan significantly increased shoot length and leaf area of basil and decreasedC. campestrisinfestation by about 26%. Carrageenan treatment caused a significant increase in PAL activity, phenols, antioxidant and lignin content in basil. Thus, the present observation suggested the phenylpropanoid pathway was activated and defense responses were stimulated. Our results showed that carrageenan spraying induced beneficial effects in plants, corresponding to growth stimulation and defense compound synthesis. Thus carrageenan treatment is recommended as a natural biostimulator for the protection of plants againstC. campestris.

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“…Host exhaustion caused by weedy Phelipanche spp. results in huge losses of crop yield and influences final fruit quality (Aly, 2013). Many different strategies have been tested to eliminate parasite from the environment, such as manual weeding, using herbicides or host plant breeding programs for parasite resistance, but they do not provide sufficient crop protection.…”

Section: Introductionmentioning

confidence: 99%

Establishment of Phelipanche Ramosa Tissue Culture and Effect of Kanamycin on Culture Growth

Kullacova¹,

Matúšová²

2015

J microb biotech food sci

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Trafficking of molecules between parasitic plants and their hosts

Cited by 24 publications

References 80 publications

Rhamphicarpa fistulosa, a widespread facultative hemi‐parasitic weed, threatening rice production in Africa

Rhamphicarpa fistulosa, a widespread facultative hemi‐parasitic weed, threatening rice production in Africa

Effects of carrageenan as elicitor to stimulate defense responses of basil against Cuscuta campestris Yunck

Establishment of Phelipanche Ramosa Tissue Culture and Effect of Kanamycin on Culture Growth

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