scholarly journals Calcium oxide, potassium phosphite and a Trichoderma enriched compost water suspension protect Capsicum annuum against Phytophthora capsici by priming the immune system

2021 ◽  
Author(s):  
Alessio Bellini ◽  
Massimo Pugliese ◽  
Vladimiro Guarnaccia ◽  
Giovanna R Meloni ◽  
Lodovica M Gullino
Keyword(s):  
Immune System ◽  
Capsicum Annuum ◽  
Calcium Oxide ◽  
Phytophthora Capsici ◽  
Water Suspension ◽  
Potassium Phosphite

Alterations in peroxidase activity and phenylpropanoid metabolism induced by Nacobbus aberrans Thorne and Allen, 1944 in chilli (Capsicum annuum L.) CM334 resistant to Phytophthora capsici Leo.

2010 ◽  
Vol 338 (1-2) ◽  
pp. 399-409 ◽  
Author(s):  
Noé López-Martínez ◽  
Ma. Teresa Colinas-León ◽  
Cecilia B. Peña-Valdivia ◽  
Yolanda Salinas-Moreno ◽  
Patricia Fuentes-Montiel ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Peroxidase Activity ◽  
Phytophthora Capsici ◽  
Phenylpropanoid Metabolism ◽  
Capsicum Annuum L ◽  
Nacobbus Aberrans

Behaviour of the Phenolic Compounds on Capsicum annuum Leaves Infected with Phytophthora capsici

1995 ◽  
Vol 143 (10) ◽  
pp. 619-627 ◽  
Author(s):  
Yves Lizzi ◽  
Jean Pierre Roggero ◽  
Philippe Jean Coulomb
Keyword(s):  
Phenolic Compounds ◽  
Capsicum Annuum ◽  
Phytophthora Capsici

Caractérisation ultrastructurale d'une résistance induite par un éliciteur d'origine fongique, chez un cultivar sensible de Piment

1990 ◽  
Vol 68 (2) ◽  
pp. 381-390 ◽  
Author(s):  
C. Coulomb ◽  
P. J. Coulomb ◽  
I. Saimmaime ◽  
Y. Lizzi ◽  
C. Polian
Keyword(s):  
Endoplasmic Reticulum ◽  
Capsicum Annuum ◽  
Defense Response ◽  
Culture Medium ◽  
Phytophthora Capsici ◽  
Physiological State ◽  
Sweet Pepper ◽  
Host Cells ◽  
Lytic Function ◽  
Wall Appositions

Elicitation of a sensitive sweet pepper (Capsicum annuum) cultivar roots by immersion in the culture medium of Trichoderma album induces resistance in leaves infected by Phytophthora capsici. In infected tissues, host cells are intact and develop wall formations that look like typical wall appositions, but differ from them by the presence of a substance of cytoplasmic origin, which is phagocytized and degraded, conferring a lytic function and unusual dynamics to these structures. The involvement of the endoplasmic reticulum and peroxysomes in eventual detoxification processes is discussed. The resistance induced by this elicitor seems to be programmed by the establishment of a reactive physiological state, which produces the defense response.

scholarly journals Morphological characterization of Phytophthora capsici isolates from Jalisco and Michoacán, Mexico

2020 ◽  
Vol 39 (1) ◽  
Author(s):  
Alfredo Reyes-Tena ◽  
Gerardo Rodríguez-Alvarado ◽  
Sylvia P. Fernández-Pavía ◽  
Martha E. Pedraza-Santos ◽  
John Larsen ◽  
...  
Keyword(s):  
Capsicum Annuum ◽  
Phytophthora Capsici ◽  
Morphological Characterization

<em>Phytophthora capsici</em> es el principal fitopatógeno del cultivo de chile (<em>Capsicum annuum</em>) y de diversas plantas de interés comercial en México. El desconocimiento por parte de los productores sobre la presencia de este patógeno en zonas de cultivo dificulta la prevención y manejo de la enfermedad. El objetivo de este trabajo fue identificar y caracterizar morfológicamente aislados obtenidos de cultivos de cucurbitáceas y solanáceas con síntomas de “marchitez” en Jalisco y Michoacán, México. Los muestreos se realizaron durante 2016 y 2017. Los 41 aislados de <em>P. capsici</em> obtenidos de plantas enfermas se analizaron por morfología comparativa con base a caracteres sexuales y asexuales. Se caracterizaron 33 aislamientos del cultivo de<em> C. annuum</em>, seis de <em>C. pepo</em> y dos de <em>S. lycopersicum</em>. La mayoría de los aislados presentaron características morfológicas típicas de<em> P. capsici</em>. Solo un aislado presentó clamidosporas, globosas y terminales (aislado de Queréndaro, Mich). Se registraron 40 aislados heterotálicos y un aislado homotálico. Se determinó la patogenicidad de siete aislados, asociando a<em> P. capsici</em> como el agente causal de la marchitez para estos aislados y para siete analizados en un estudio previo. Los 27 aislamientos restantes solo se asociaron a la enfermedad. Se sugiere realizar un manejo integrado de este patógeno en las zonas de producción de Jalisco y Michoacán.

scholarly journals Phosphite effect on hot and sweet pepper reaction to Phytophthora capsici

2004 ◽  
Vol 61 (5) ◽  
pp. 492-495 ◽  
Author(s):  
Fernando Cesar Sala ◽  
Cyro Paulino da Costa ◽  
Márcia de Moraes Echer ◽  
Marise Cagnin Martins ◽  
Sally Ferreira Blat
Keyword(s):  
Capsicum Annuum ◽  
Plant Resistance ◽  
Adult Stage ◽  
Phytophthora Capsici ◽  
Sweet Pepper ◽  
Hot Pepper ◽  
Heterozygous Genotype ◽  
Capsicum Annuum L ◽  
Fruiting Stage ◽  
Resistant Lines

Phosphite has been recommended to enhance plant resistance against Phytophthora. This work evaluated the response of hot and sweet pepper (Capsicum annuum L.) to Phytophthora capsici from juvenile up to the adult stage following treatment with phosphite. Sweet pepper hybrids considered to be resistant to P. capsici, like Reinger, Nathalie and Athenas, were evaluated. The susceptible checks were hybrid Magali R and cvs. Myr 10 and Ikeda. Hot pepper Criollo de Morelos 328, CM 334, BGH 3756, BGH 5122, CNPH 294 and Locorte were used as referential resistant lines. Phosphite did not have an effect on the hot pepper resistant lines because of their genetic homozygozity, while no protection was observed for the Athenas hybrid claimed to be resistant. Heterozygous hybrids recognized as resistant, like Reinger and Nathalie, showed higher survival following phosphite treatment, and their reaction was equivalent to the resistant cvs. CM 328 and CM 334, except for the fruiting stage. Depending of the hybrid heterozygous genotype, phosphite possibly acts through indirect phytoalexin induction through the inhibited pathogen.

Étude cytologique du mode d'action du capsidiol, sur les hyphes de Phytophthora capsici

1986 ◽  
Vol 64 (4) ◽  
pp. 701-709 ◽  
Author(s):  
Michel Turelli ◽  
Claude Coulomb ◽  
Stéphanie Mutaftschiev ◽  
Philippe-Jean Coulomb
Keyword(s):  
Electron Microscopy ◽  
Cell Wall ◽  
Capsicum Annuum ◽  
Phytophthora Capsici ◽  
Golgi System ◽  
Mode D’Action

After the action of capsidiol on the hyphae of Phytophthora capsici in vitro, observations with electron microscopy revealed alterations in the cell wall, in the plasmalemma, in the mitochondria, and in the Golgi system. Among other effects, phytoalexin stimulated the separation of the external cell wall layers, liberating a three-component filament. Such cytomorphological events were also recorded in situ on sections, when the fungus parasitized the leaves of Capsicum annuum. [Translated by the Journal]

Defence response of pepper (Capsicum annuum ) suspension cells to Phytophthora capsici

1998 ◽  
Vol 103 (4) ◽  
pp. 527-533 ◽  
Author(s):  
M. Dolores García-Pérez ◽  
Catalina Egea ◽  
M. Emilia Candela
Keyword(s):  
Capsicum Annuum ◽  
Phytophthora Capsici ◽  
Defence Response ◽  
Suspension Cells
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