Authenticiteit

Inleiding (tot themanummer) De roep om authenticiteit – om echtheid, puurheid, oorspronkelijkheid – is alom aanwezig in de westerse samenleving. Het grote draagvlak voor biologisch en ecologisch verantwoorde en daarmee natuurlijke voeding wijst daar op. Zo belooft een winkelketen als Marqt, net als vele andere bedrijven en producten, ‘Écht Eten’, ofwel ‘oorspronkelijke producten’ zonder ‘onnodige toevoegingen’. Maar ook de persoonlijke zoektocht naar een authentieke identiteit – het echt ‘jezelf zijn’, vooral ‘jezelf blijven’ of ‘jezelf worden’ met behulp van coaches, psycho-spirituele trainingen of zelfhulpboeken – is moeilijk te overschatten. Reality shows als Big Brother, De Gouden Kooi en talkshows als Oprah en Dr. Phil bestaan bij de gratie van authenticiteit: zij tonen de mensen graag en gretig ‘zoals zij werkelijk zijn’ en exploiteren emotionele uitbarstingen, persoonlijke openbaringen en getuigenissen (zie ook Egan en Papson 2005; Furedi 2004), terwijl ook politici steeds meer beoordeeld worden op persoonlijke authenticiteit in plaats van het politieke programma dat zij vertegenwoordigen (Houtman en Achterberg 2010; Van Zoonen 2005). Toeristen, consumenten, burgers – zij lijken meer dan ooit op zoek naar authenticiteit en echte, ongemedieerde ervaringen

Christian Religion in the West: Privatization or Public Revitalization?

1. Introduction “After nearly three centuries of utterly failed prophesies and misrepresentations of both present and past, it seems time to carry the secularization doctrine to the graveyard of failed theories, and there to whisper ‘requiescat in pace’” (Stark 1999: 269). Stark’s words, published just before the turn of the century, may count on much approval among sociologists of religion today. Secularization theory has been discredited because of its inability to account for religious change in the modern world (e.g., Berger, 1999; Heelas and Woodhead, 2005; Houtman and Mascini, 2002) and because of its sheer broadness and lack of specificity, as emphasized by Hadden (1987: 587), for instance, when he noted that it is a “hotchpotch of loosely employed ideas rather than a systematic theory”. Secularization theory’s two principal subtheses, the ‘decline-of-religion thesis’ and the ‘privatization thesis’ (Casanova, 1994), have both become increasingly contested and recent research even suggests that these two aspects of secularization may develop in a remarkably uneven way. That idea is put forward by Achterberg et al. (2009), who point out that the decline of Christian religion in the West spawns its public revitalization rather than its further privatization. This paper elaborates on this by assessing the empirical merits of two objections that suggest that these recent findings may after all not contradict the established notion that religious decline and religious privatization occur in tandem

Pseudomonas simiae WCS417: star track of a model beneficial rhizobacterium

Background: Since the 1980s, numerous mutualistic Pseudomonas spp. strains have been used in studies on the biology of plant growth-promoting rhizobacteria (PGPR) and their interactions with host plants. In 1988, a strain from the Pseudomonas fluorescens group, WCS417, was isolated from lesions of wheat roots growing in a take-all disease-suppressive soil. In subsequent trials, WCS417 limited the build-up of take-all disease in field-grown wheat and significantly increased wheat yield. In 1991, WCS417 was featured in one of the first landmark studies on rhizobacteria-induced systemic resistance (ISR), in which it was shown to confer systemic immunity in carnation (Dianthus caryophyllus) against Fusarium wilt. The discovery that WCS417 conferred systemic immunity in the model plant species Arabidopsis thaliana in 1996 incited intensive research on the molecular mechanisms by which PGPR promote plant growth and induce broad-spectrum disease resistance in plants. Since then, the strain name appeared in over 750 studies on beneficial plant-microbe interactions. Scope: In this review, we will highlight key discoveries in plant-microbe interactions research that have emerged from over 30 years of research featuring WCS417 as a model rhizobacterial strain. WCS417 was instrumental in improving our understanding of the microbial determinants that are involved in root colonization and the establishment of mutually beneficial interactions with the host plant. The model strain also provided novel insight into the molecular mechanisms of plant growth promotion and the onset and expression of rhizobacteria-ISR. More recently, WCS417 has been featured in studies on host immune evasion during root colonization, and chemical communication in the rhizosphere during root microbiome assembly. Conclusions: Numerous studies on the modes of action of WCS417 have provided major conceptual advances in our understanding of how free-living mutualists colonize the rhizosphere, modulate plant immunity, and promote plant growth. The concepts may prove useful in our understanding of the molecular mechanisms involved in other binary plant-beneficial microbe interactions, and in more complex microbial community contexts, such as the root microbiome

Pseudomonas simiae WCS417: star track of a model beneficial rhizobacterium

Background: Since the 1980s, numerous mutualistic Pseudomonas spp. strains have been used in studies on the biology of plant growth-promoting rhizobacteria (PGPR) and their interactions with host plants. In 1988, a strain from the Pseudomonas fluorescens group, WCS417, was isolated from lesions of wheat roots growing in a take-all disease-suppressive soil. In subsequent trials, WCS417 limited the build-up of take-all disease in field-grown wheat and significantly increased wheat yield. In 1991, WCS417 was featured in one of the first landmark studies on rhizobacteria-induced systemic resistance (ISR), in which it was shown to confer systemic immunity in carnation (Dianthus caryophyllus) against Fusarium wilt. The discovery that WCS417 conferred systemic immunity in the model plant species Arabidopsis thaliana in 1996 incited intensive research on the molecular mechanisms by which PGPR promote plant growth and induce broad-spectrum disease resistance in plants. Since then, the strain name appeared in over 750 studies on beneficial plant-microbe interactions. Scope: In this review, we will highlight key discoveries in plant-microbe interactions research that have emerged from over 30 years of research featuring WCS417 as a model rhizobacterial strain. WCS417 was instrumental in improving our understanding of the microbial determinants that are involved in root colonization and the establishment of mutually beneficial interactions with the host plant. The model strain also provided novel insight into the molecular mechanisms of plant growth promotion and the onset and expression of rhizobacteria-ISR. More recently, WCS417 has been featured in studies on host immune evasion during root colonization, and chemical communication in the rhizosphere during root microbiome assembly. Conclusions: Numerous studies on the modes of action of WCS417 have provided major conceptual advances in our understanding of how free-living mutualists colonize the rhizosphere, modulate plant immunity, and promote plant growth. The concepts may prove useful in our understanding of the molecular mechanisms involved in other binary plant-beneficial microbe interactions, and in more complex microbial community contexts, such as the root microbiome