scholarly journals Studies on the Tobamovirus resistance of the pepper (Capsicum annuum L.) cultivar Greygo

2001 ◽  
Vol 7 (1) ◽  
Author(s):  
P. Salomon ◽  
G. Venczel
Keyword(s):  
Resistance Gene ◽  
Capsicum Annuum ◽  
Mottle Virus ◽  
Resistance Allele ◽  
Capsicum Frutescens ◽  
Pepper Mild Mottle Virus ◽  
Capsicum Annuum L

Resistance of the Hungarian pepper (Capsicum annuum L.) cultivar "Gre.ygo" to Tohamoviruses has been investigated. All plants of the population of Greygo proved to be resistant to tobacco mosaic and tomato mosaic viruses (TMV, ToMV), both represent the pepper pathotypes Po of Tohamoviruses. Individuals of Greygo, however, were found to be susceptible to pathotypes P12 and P123 of pepper mild mottle virus (PMMV). When inoculated with the XM isolate of dulcamara yellow fleck virus (DYFV, pathotype P1) the population of Greygo segregated in resistant and susceptible plants. These results as well as inoculations of the progenies of three TMV resistant plants clearly showed, that besides the resistance allele Li the cultivar Greygo possesses also an another allele. This allele, provisionally marked by L2g behaves like to the allele L2 characteristic to Capsicum frutescens cv. . Tabasco. Determination of the identity of the allele L2g to the allele L2 needs further genetic and pathological informations. Relations between the Tohamoviruses pathogenic to pepper and the alleles of the resistance gene L are outlined for the discussion.  

scholarly journals Pepper Mild Mottle Virus Coat Protein Alone Can Elicit the Capsicum spp. L3 Gene-Mediated Resistance

1998 ◽  
Vol 11 (12) ◽  
pp. 1253-1257 ◽  
Author(s):  
P. Gilardi ◽  
I. García-Luque ◽  
M. T. Serra
Keyword(s):  
Coat Protein ◽  
Resistance Gene ◽  
Protein Gene ◽  
Expression System ◽  
Potato Virus X ◽  
Mottle Virus ◽  
Capsicum Chinense ◽  
Pepper Mild Mottle Virus ◽  
Capsicum Spp ◽  
Virus Coat

The pepper mild mottle virus (PMMoV-S) (an L3 hypersensitive response [HR]-inducer strain) coat protein was expressed in Capsicum chinense (L3L3) plants with the heterologous potato virus X (PVX)-based expression system. The chimeric virus was localized in the inoculated leaves and induced the HR, thus indicating that the tobamoviral sequences that affect induction of the HR conferred by the L3 resistance gene reside in the coat protein gene. Furthermore, transient expression of the PMMoV-S coat protein in C. chinense leaves by biolistic co-bombardment with a plasmid expressing the β-glucuronidase (GUS) gene leads to the induction of cell death and expression of host defense genes. Thus, the coat protein of PMMoV-S is the elicitor of the Capsicum spp. L3 resistance gene-mediated HR.

scholarly journals Antioxidant and Oxidant Levels of Pepper (Capsicum annuum cv. ‘Charlee’) Infected with Pepper Mild Mottle Virus

2011 ◽  
Vol 39 (2) ◽  
pp. 58 ◽  
Author(s):  
Murat DIKILITAS ◽  
Mehmet Ertugrul GULDUR ◽  
Ahmet DERYAOGLU ◽  
Ozcan EREL
Keyword(s):  
Vitamin C ◽  
Capsicum Annuum ◽  
Total Antioxidant Status ◽  
Mottle Virus ◽  
Stress Index ◽  
Pepper Mild Mottle Virus ◽  
Free Phenol ◽  
Biochemical Analyses ◽  
Commercial Kits

Total antioxidant status (TAS), total oxidant status (TOS), as well as total phenol (TP), free phenol (FP), conjugated phenol (CP), and the vitamin C content of pepper plants (Capsicum annuum cv. ‘Charlee’) infected with Pepper mild mottle virus (PMMoV) were determined via a novel automated antioxidant system using test kits. PMMoV was first identified in Turkey in 1994 in commercial pepper (Capsicum annuum cv. ‘Charlee’) fields and caused an outbreak in southern Turkey by 2006, especially in greenhouses. Infected plants were confirmed by ELISA using commercial kits for the virus. The infected plants had stunted growth; and leaves and fruits became mottled, puckered, malformed, deformed, and marked by off-colored sunken areas. Fruits expressing virus symptoms were utilized for biochemical analyses. The percent ratio of TOS to TAS was calculated as the oxidative stress index (OSI). The TAS level and the vitamin C content were found to be significantly lower in infected peppers as compared to healthy peppers. However, TOS, OSI, TP, FP, and CP levels were significantly higher in infected pepper fruits than in healthy ones. In this study, it has been demonstrated that low levels of TAS and high levels of TOS, as well as high OSI status, reflects the quality of peppers. Using this method, the quality of fruits and the condition of plants can be determined in advance of stress development.

scholarly journals Antioxidant Evaluation and Heavy Metals Accumulation Of Capsicum Annuum L. Cultivars

2021 ◽  
Vol 50 (3) ◽  
pp. 507-513
Author(s):  
- Azizuddin ◽  
- Kiran ◽  
Kousar Yasmeen
Keyword(s):  
Antioxidant Activity ◽  
Capsicum Annuum ◽  
Chemical Properties ◽  
Capsicum Annuum L ◽  
Nutritional Components ◽  
Physico Chemical ◽  
Antioxidant Evaluation ◽  
Safe Limits ◽  
Metals Accumulation

Capsicum annuum L. commonly known as chilli provides dietary fibers, minerals and vitamins. In this study, three different chilli cultivars commonly named as Dandi, Ghotki and German were studied for the determination of physico-chemical properties, antioxidant activity and metal content. German showed maximum nutritional components as compared to Ghotki and Dandi such as TA (0.43 %), TDS (1.95 g/l), TSS (1.29 °Brix) and TSC (1108.72 mg/100 g). Dandi showed higher TPC (6286.60 mg/100 g) and TFC (258.88 mg/100 g) with significant antioxidant activity through DPPH (37.27 % inhibition) and RPA (1134.80 mg/100 g). Fe was found in sufficient amount among chilli cultivars and metals accumulation was within the standard safe limits. Bangladesh J. Bot. 50(3): 507-513, 2021 (September)

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