Exogenous systemin has a contrasting effect on disease resistance in mycorrhizal tomato (Solanum lycopersicum) plants infected with necrotrophic or hemibiotrophic pathogens

Noval, Blanca de la; Pérez, E.; Martínez, B; León, Ondina; Martínez‐Gallardo, Norma; Délano‐Frier, John Paul

doi:10.1007/s00572-007-0122-9

Cited by 48 publications

(21 citation statements)

References 61 publications

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“…However, pathogens with a necrotrophic lifestyle are hampered in their proliferation, and symptom development is less severe on mycorrhizal plants. Examples are the fungi Alternaria solani in tomato (Fritz et al, 2006;de la Noval et al, 2007), Magnaporthe grisea in rice (Campos-Soriano et al, 2012), and Botrytis cinerea in roses and tomato (Møller et al, 2009;Pozo et al, 2010).…”

Section: Mycorrhiza Effects On Above-ground Interactionsmentioning

confidence: 99%

Mycorrhiza-Induced Resistance and Priming of Plant Defenses

et al. 2012

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Symbioses between plants and beneficial soil microorganisms like arbuscular-mycorrhizal fungi (AMF) are known to promote plant growth and help plants to cope with biotic and abiotic stresses. Profound physiological changes take place in the host plant upon root colonization by AMF affecting the interactions with a wide range of organisms below- and above-ground. Protective effects of the symbiosis against pathogens, pests, and parasitic plants have been described for many plant species, including agriculturally important crop varieties. Besides mechanisms such as improved plant nutrition and competition, experimental evidence supports a major role of plant defenses in the observed protection. During mycorrhiza establishment, modulation of plant defense responses occurs thus achieving a functional symbiosis. As a consequence of this modulation, a mild, but effective activation of the plant immune responses seems to occur, not only locally but also systemically. This activation leads to a primed state of the plant that allows a more efficient activation of defense mechanisms in response to attack by potential enemies. Here, we give an overview of the impact on interactions between mycorrhizal plants and pathogens, herbivores, and parasitic plants, and we summarize the current knowledge of the underlying mechanisms. We focus on the priming of jasmonate-regulated plant defense mechanisms that play a central role in the induction of resistance by arbuscular mycorrhizas.

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Section: Mycorrhiza Effects On Above-ground Interactionsmentioning

confidence: 99%

Mycorrhiza-Induced Resistance and Priming of Plant Defenses

et al. 2012

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“…Finally, several studies have observed a positive effect of the symbiosis on plant resistance to other shoot pathogens. In tomato, AM reduced disease symptoms caused by a phytoplasma and conferred protection against the necrotrophic fungus Alternaria solani (Lingua et al 2002 ;Fritz et al 2006 ;de la Noval et al 2007) . Similarly, colonisation by Glomus mosseae reduces disease symptoms and proliferation of Pseudomonas syringae in tomato leaves (J. García-Andrade and M.J. Pozo, unpublished results).…”

Section: Mycorrhiza-induced Resistance Against Pathogensmentioning

confidence: 99%

Priming Plant Defence Against Pathogens by Arbuscular Mycorrhizal Fungi

Pozo

Verhage

García-Andrade

et al. 2008

Mycorrhizas - Functional Processes and Ecological Impact

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Root colonisation by arbuscular mycorrhizal fungi (AMF) can improve plant resistance/tolerance to biotic stresses. Although this bioprotection has been amply described in different plant systems, the underlying mechanisms remain largely unknown. Besides mechanisms such as improved plant nutrition and competition, experimental evidence supports the involvement of plant defence mechanisms in the observed protection. During mycorrhiza establishment, modulation of plant defence responses occurs upon recognition of the AMF in order to achieve a functional symbiosis. As a consequence of this modulation, a mild, but effective activation of the plant immune responses may occur, not only locally but also systemically. This activation leads to a primed state of the plant that allows a more efficient activation of defence mechanisms in response to attack by potential enemies.

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“…N0P0, tanpa inokulasi CMA dan tanpa pemupukan N, P, dan K; N0P1, diinokulasi CMA dan tanpa pemupukan N, P, dan K; N0P2, diaplikasi fungisida kimia dan tanpa pemupukan N, P, dan K; N1P0, tanpa inokulasi CMA dan dengan pemupukan N, P, dan K; N1P1, diinokulasi CMA dan dengan pemupukan N, P, dan K; N1P2, diaplikasi fungisida kimia dan dengan pemupukan N, P, dan K. kembangan penyakit yang lebih rendah dibandingkan dengan perlakuan lain. Peran CMA terhadap kesehatan tanaman telah banyak diteliti namun perannya dalam pengendalian penyakit yang menginfeksi daun masih dalam tahap penelitian dan menunjukkan hasil yang bervariasi (Gernns et al 2001), tanaman yang diinokulasi CMA cenderung lebih tahan terhadap patogen tipe nekrotrof (Fritz et al 2006;De La Noval et al 2007). Cendawan A. porri penyebab bercak ungu merupakan cendawan yang bersifat nekrotrofik, yaitu cendawan yang hidup dan berkembang pada sisa-sisa tanaman yang mati, dan apabila kondisi tanaman lemah, karena kekurangan unsur hara maupun cekaman lainnya maka dapat menyerang dan menimbulkan kerugian ekonomi (Woudenberg et al 2014).…”

Section: Pembahasanunclassified

Penekanan Perkembangan Penyakit Bercak Ungu pada Bawang Merah oleh Cendawan Mikoriza Arbuskula

Sari

Hadisutrisno

Suryanti

2017

J Fitopatol Indones

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ABSTRAKCendawan mikoriza arbuskula (CMA) diketahui meningkatkan pertumbuhan tanaman bawang merah (Allium cepa var. aggregatum) dan membantu meningkatkan ketahanan tanaman terhadap gangguan penyakit. Penelitian ini bertujuan mengetahui peran CMA dalam menekan perkembangan penyakit bercak ungu yang disebabkan oleh Alternaria sp. pada pertanaman bawang merah di Dusun Gowok, Caturtunggal, Sleman, Yogyakarta. Perlakuan inokulasi CMA pada tanaman bawang merah yang dipupuk atau yang tidak dipupuk N, P, dan K menyebabkan tinggi tanaman dan jumlah daun yang lebih besar dibandingkan dengan perlakuan tanpa inokulasi CMA. Intensitas dan laju perkembangan penyakit bercak ungu pada tanaman bawang merah yang diinokulasi CMA lebih rendah dibandingkan dengan kontrol maupun tanaman yang diberi perlakuan fungisida kimia. Hasil tersebut menunjukkan bahwa CMA selain berperan sebagai pupuk hayati juga berpotensi sebagai agens pengendali hayati.Kata kunci: agens pengendali hayati, Alternaria porri, ketahanan tanaman. ABSTRACTArbuscular mycorrhizal fungi (AMF) is known to improve the growth of shallot (Allium cepa var. aggregatum) and strengthen the resistance of plants toward disease infection. This research aimed to find out the roles of AMF in suppressing the development of purple blotch disease caused by Alternaria sp. on shallot in Caturtunggal, Sleman, Yogyakarta. Inoculation of AMF either on fertilization of N, P, K or without fertilization treatment resulted on higher plant height and number of leaves compared to those without AMF inoculation. The plant inoculated with AMF had lower purple blotch disease intensity and disease progression than control and fungicide treatment. The result showed that AMF, in addition to act as the bio-fertilizer, is a potential to be a biocontrol agent.

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Exogenous systemin has a contrasting effect on disease resistance in mycorrhizal tomato (Solanum lycopersicum) plants infected with necrotrophic or hemibiotrophic pathogens

Cited by 48 publications

References 61 publications

Mycorrhiza-Induced Resistance and Priming of Plant Defenses

Mycorrhiza-Induced Resistance and Priming of Plant Defenses

Priming Plant Defence Against Pathogens by Arbuscular Mycorrhizal Fungi

Penekanan Perkembangan Penyakit Bercak Ungu pada Bawang Merah oleh Cendawan Mikoriza Arbuskula

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