Potato Early Dying: Management Challenges in a Changing Production Environment

Rowe, R. C.; Powelson, M. L.

doi:10.1094/pdis.2002.86.11.1184

Cited by 168 publications

(108 citation statements)

References 61 publications

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“…This lack of effectiveness of green manure-based treatments in decreasing wilt incidence and severity may be attributed to several factors such as the limited number of green manure cycles or insufficient physical disruption of plant tissues during plow down that lead to low release of toxic compounds, mainly glucosinolates, as previously suggested [12,57]. These factors are relatively important for long-term survival structures of plant pathogens in soil, particularly, microsclerotia of V. dahliae [12].…”

Section: Discussionmentioning

confidence: 95%

“…These factors are relatively important for long-term survival structures of plant pathogens in soil, particularly, microsclerotia of V. dahliae [12]. In fact, glucosinolate concentrations and the resulting production of different forms of isothiocyanates vary greatly among Brassica species and even among cultivars within each species [58], and are also affected by environmental conditions and plant development [59,60].…”

Section: Discussionmentioning

confidence: 99%

“…In the same sense, Talgre et al [77] find that among all the Brassicaceae tested, the most effective ones were FR and white mustard which produce the highest biomass and therefore drove more nutrients into the soil. Many studies have also related the disease suppressive effect of green manure to improved soil fertility (mainly NPK contents) [12,78] and soil quality [31]. In fact, green manures and organic amendments are commonly used in crop production systems to increase soil nutrient availability, organic nitrogen and organic matter, which are associated with higher tuber yields [19].…”

Section: Discussionmentioning

confidence: 99%

“…In Tunisia, Fusarium wilt has become in last decade as one of the most serious potato diseases responsible for plant stunting, severe leaf yellowing, vascular discoloration and subsequent plant wilting and death [7,8]. Verticillium wilt is a common potato disease causing premature senescence leading to 30-50% yield losses [9,12]. For C. coccodes, symptoms include sloughing of the root cortex, brown lesions on roots and blemishes on tubers [13].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Khiareddine¹

2016

Adv Crop Sci Tech

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Potato is threatened by several soil-borne fungi causing wilt and root rots. In this study, two fodder radish (Raphanus sativus L.) (FR) cultivars (cvs. Boss and Defender), used as green manure preceding a potato crop, were evaluated for their suppressive effects against wilt incidence and severity, potato growth and yield as compared to animal manure. The essay was carried out in a completely randomised design with three types of organic amendment and two potato cultivars (cvs. Spunta and Royal). Incidence of potato wilting noted 100 days post planting (DPP) was high, exceeding 70%, for all soil amendments tested. The extent of vascular discoloration varied depending on amendments used where cv. Defender behaved as the control while the highest extent was noted on potato plants grown in cv. Boss amended plots. As compared to animal manure, the application of cvs. Boss and Defender had increased by 48.43 and 41.28% the incidence of vascular discoloration on cv. Spunta, respectively, while on cv. Royal, only cv. Defender had reduced this parameter by 16.32%. Fungal isolations performed from roots and stems revealed the involvement of several soil-borne pathogens in the recorded plant wilting. Soil manuring using cvs. Boss and Defender FR resulted in significant increment in average stem number per plant and aerial part fresh weight by 22.79 and 21.32% and by 34.62 and 27.03%, respectively, as compared to animal manure. At 100 DPP, potato root fresh weight increase by 8.7 and 33.49% was noted on cv. Spunta compared to 30.34 and 23.48% recorded on cv. Royal. Potato tuber yield was improved by 38.28 and 10.7% and by 28.44 and 27.62% in cvs. Spunta and Royal, respectively, relative to animal manure. The use of FR as green manure may be implemented in the integrated management of soil-borne diseases for the enhancement of potato yield.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Khiareddine¹

2016

Adv Crop Sci Tech

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“…Pathogens causing VW depend on climatic conditions: for instance V. dahliae causes VW in warm production regions and V. alboatrum in cooler areas (Rowe & Powelson 2002). Once the pathogen enters the host, it makes its way to the vascular system, specifically the xylem, and can quickly colonize the plant, causing symptoms such as stunting, chlorosis or yellowing of the leaves, necrosis or tissue death, and defoliation.…”

mentioning

confidence: 99%

Protein extract of tobacco expressing StoVe1 gene inhibits Verticillium dahliae proliferation

Liu¹,

Hong²,

Wu³

et al. 2013

CZECH J GENET PLANT

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Verticillium dahliae is a principal pathogen causing verticillium wilt in Solanaceae crops. StoVe1 is a gene resisting to verticillium wilt isolated from Solanum torvum. In order to generate resistant tobacco plants, StoVe1 was inserted in the orientation behind CaMV 35S promoter of vector pGS and this construct was introduced into tobacco by Agrobacterium-mediated transformation. A total of 12 kanamycin-resistant plants were generated and 7 independent transgenic lines were identified by PCR analysis. Quantitative RT-PCR analysis showed that the levels of StoVe1 transcript in transgenic lines were up to 2-6 fold higher than in the control. Anti-fungal assay indicated that the protein extract of transgenic tobacco lines showed strong inhibition activity to V. dahliae, 2 fold or higher compared to control plants. This result reveals that StoVe1, as a V. dahliae resistance gene, has an application potential in plant breeding for verticillium wilt resistance.

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Molecular Dissection of Extracellular Matrix Proteome Reveals Discrete Mechanism Regulating Verticillium Dahliae Triggered Vascular Wilt Disease in Potato

et al. 2017

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Plants exposed to patho-stress mostly succumb due to disease by disruption of cellular integrity and changes in the composition of the extracellular matrix (ECM). Vascular wilt, caused by the soil borne hemibiotrophic filamentous fungus Verticillium dahliae, is one of the most significant diseases that adversely affect plant growth and productivity. The virulence of the pathogen associated with the ECM-related susceptibility of the host plant is far from being understood. To better understand ECM-associated disease responses that allow the pathogen to suppress plant immunity, a temporal analysis of ECM proteome was carried out in vascular wilt susceptible potato cultivar upon V. dahliae infection. The proteome profiling led to the identification of 75 patho-stress responsive proteins (PSRPs), predominantly involved in wall hydration, architecture, and redox homeostasis. Two novel clues regarding wilt disease of potato were gained from this study. First, wall crosslinking and salicylic acid signaling significantly altered during patho-stress. Second, generation of reactive oxygen species and scavenging proteins increased in abundance leading to cell death and necrosis of the host. We provide evidence for the first time that how fungal invasion affects the integrity of ECM components and host reprogramming for susceptibility may function at the cell surface by protein plasticity.

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Potato Early Dying: Management Challenges in a Changing Production Environment

Cited by 168 publications

References 61 publications

Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Effect of Fodder Radish (Raphanus sativus L.) Green Manure on Potato Wilt, Growth and Yield Parameters

Protein extract of tobacco expressing StoVe1 gene inhibits Verticillium dahliae proliferation

Molecular Dissection of Extracellular Matrix Proteome Reveals Discrete Mechanism Regulating Verticillium Dahliae Triggered Vascular Wilt Disease in Potato

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