Effect of Verticillium dahliae on Photosynthesis, Leaf Expansion and Senescence of Field-grown Sunflower

Sadras, Víctor O.; Quiróz, Facundo; Echarte, Laura; Escande, A. R.; Pereyra, VI

doi:10.1006/anbo.2000.1267

Cited by 61 publications

(49 citation statements)

References 42 publications

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“…This result agrees with data reported for other plant species (Bowden et al 1990;Goicoechea et al 2001;Haverkort et al 1990;Lorenzini et al 1997;Pennypacker et al 1990;Sadras et al 2000;Saeed et al 1999). Vascular wilt pathogens decrease plant hydraulic conductance due to plugging of the xylem vessels by the fungus, which may lead to leaf water deficits (Adams et al 1987).…”

Section: Discussionsupporting

confidence: 91%

Growth, yield and physiology of Verticillium-inoculated pepper plants treated with ATAD and composted sewage sludge

et al. 2009

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A greenhouse experiment was conducted to investigate the impact of sanitized sewage sludges, ATAD (aerobic thermophilic autothermic digestion) and composted, on Verticillium-induced wilt in pepper plants (Capsicum annuum L. cv. Piquillo). Two doses of ATAD (15 and 30% v/v) and three of composted sludge (15, 30 and 45% v/v) were applied to a peatbased potting mix. Unamended substrate was included as control. Half of the plants were inoculated with V. dahliae, whereas the other half remained noninoculated. Result showed that ATAD and composted sludge increased growth and yield of non-inoculated plants. V. dahliae reduced net photosynthesis (P n ), mainly as a consequence of stomatal closure, 5 weeks after pathogen inoculation. The actual photosystem II efficiency was also reduced and consequently the electron transport rate (ETR). No photoinhibitory damage was observed at this time in diseased plants. At the end of the experiment, diseased plants showed lower plant biomass and fruit yield. ATAD sludge had little effect on the disease. Compost slightly alleviated Verticillium-induced wilt when applied at lower doses (15% v/v), which resulted in increased P n and ETR, and higher plant biomass and fruit yield. By contrast, higher doses of compost (45% v/v) enhanced the effect of the pathogen, which was related to the high substrate salinity in this treatment.

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Section: Discussionsupporting

confidence: 91%

Growth, yield and physiology of Verticillium-inoculated pepper plants treated with ATAD and composted sewage sludge

et al. 2009

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“…Likewise, visual disease symptoms are not always correlated to reductions in photosynthesis (e.g. Sadras et al, 2000). 2. another strategy could be to select for higher maximum oil concentration (dotted line in Fig.…”

Section: Grain Oil Concentrationmentioning

confidence: 98%

Improving grain quality: ecophysiological and modeling tools to develop management and breeding strategies

Aguirrezábal¹,

Martre²,

Irujo³

et al. 2015

Crop Physiology

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“…However, little is known on mechanisms responsible of the wilting syndrome or on host defense responses in olive upon V. dahliae infection with the exception of those reported by Baídez et al (2007) and by Markakis et al (2010). Nevertheless, physiological alterations as a consequence of pathogen invasion may have a strong influence on photosynthesis, nutrient translocation, water transport, and/or respiration as described in other hosts (Abeles et al 1992;Resende et al 1996;Sadras et al 2000). Indeed, Birem et al (2009) have recently reported significant reductions in water consumption and chlorophyll production in leaves of artificiallyinoculated 'Picual' (susceptible) plants compared to plants of cv.…”

Section: Verticillium Wilt Of Olive Disease Cyclementioning

confidence: 99%

Verticillium wilt of olive: a case study to implement an integrated strategy to control a soil-borne pathogen

2010

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Olive (Olea europaea L.) is one of the first domesticated and cultivated tree species and has historical, social and economical relevance. However, its future as a strategic commodity in Mediterranean agriculture is threatened by diverse biotic (traditional and new/emerging pests and diseases) and abiotic (erosion, climate change) menaces. These problems could also be of relevance for new geographical areas where olive cultivation is not traditional but is increasingly spreading (i.e., South America, Australia, etc). One of the major constraints for olive cultivation is Verticillium wilt, a vascular disease caused by the soil-borne fungus Verticillium dahliae Kleb. In this review we describe how Verticillium wilt of olive (VWO) has become a major problem for olive cultivation during the last two decades. Similar to other vascular diseases, VWO is difficult to manage and single control measure are mostly ineffective. Therefore, an integrated disease management strategy that fits modern sustainable agriculture criteria must be implemented. Multidisciplinary research efforts and advances to understand this pathosystem and to develop appropriate control measures are summarized. The main conclusion is that a holistic approach is the best strategy to effectively control VWO, integrating biological, chemical, physical, and cultural approaches.

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Effect of Verticillium dahliae on Photosynthesis, Leaf Expansion and Senescence of Field-grown Sunflower

Cited by 61 publications

References 42 publications

Growth, yield and physiology of Verticillium-inoculated pepper plants treated with ATAD and composted sewage sludge

Growth, yield and physiology of Verticillium-inoculated pepper plants treated with ATAD and composted sewage sludge

Improving grain quality: ecophysiological and modeling tools to develop management and breeding strategies

Verticillium wilt of olive: a case study to implement an integrated strategy to control a soil-borne pathogen

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