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Stip is a physiological disorder that affects certain pepper (Capsicum annuum) cultivars, most notably bell-pod types. It has been attributed in the literature to nutrient imbalances, temperature extremes, and/or other environmental stressors. Symptoms present as brown, black, and yellow ovoid-shaped necrotic lesions ≈0.5 to 1.2 cm long by 0.5 cm wide. Between 2014 and 2015, symptomatic and asymptomatic pods were harvested from 15 commercial farms in southern New Mexico. Fluorescent microscopy comparisons of harvested symptomatic tissue revealed a unique fluorescent signature and the absence of chlorophyll. A new spectral peak centered around 560 nm was observed in symptomatic tissue. High-performance liquid chromatography (HPLC) and gas chromatography–mass spectrometry (GC-MS) analyses of these tissues detected significant differences in 13 metabolites, of which several have been associated with fruit maturation and/or senescence. This report represents the first combination of a detailed microscopic description and metabolite profile of field-grown symptomatic plants with this disorder.
James C. Fulton; Francisco O. Holguin; Robert L. Steiner; Mark E. Uchanski. A Microscopic and Metabolomic Description of Stip-affected Tissue in New Mexico Pod-type Pepper. Journal of the American Society for Horticultural Science 2021, 146, 169 -177.
AMA StyleJames C. Fulton, Francisco O. Holguin, Robert L. Steiner, Mark E. Uchanski. A Microscopic and Metabolomic Description of Stip-affected Tissue in New Mexico Pod-type Pepper. Journal of the American Society for Horticultural Science. 2021; 146 (3):169-177.
Chicago/Turabian StyleJames C. Fulton; Francisco O. Holguin; Robert L. Steiner; Mark E. Uchanski. 2021. "A Microscopic and Metabolomic Description of Stip-affected Tissue in New Mexico Pod-type Pepper." Journal of the American Society for Horticultural Science 146, no. 3: 169-177.
Cities are increasingly turning to food policy plans to support goals related to food access, food security, the environment, and economic development. This paper investigates ways that rural farmers, communities, and economies can both support and be supported by metropolitan food-focused initiatives. Specifically, our research question asked what opportunities and barriers exist to developing food policies that support urban food goals, particularly related to local procurement, as well as rural economic development. To address this question, we described and analyzed a meeting of urban stakeholders and larger-scale rural producers related to Colorado’s Denver Food Vision and Plan. We documented and explored “findings” gleaned from a supply chain diagraming and data compilation process that were then used to inform an event that brought together diverse supply chain partners. Three findings stand out. First, facilitating dialog between urban food policymakers and rural producers to understand potential tensions, mitigate such tensions, and capitalize on opportunities is essential. Second, perceptions and expectations surrounding “good food” are nuanced—a timely finding given the number of preferred procurement programs emerging across the county. Third, critical evaluation is needed across a diverse set of value chain strategies (e.g., conventional and alternative distribution) if food policy intends to support heterogeneous producers, their communities, and urban food policy goals.
Becca Jablonski; Michael Carolan; James Hale; Dawn Thilmany McFadden; Erin Love; Libby Christensen; Tabitha Covey; Laura Bellows; Rebecca Cleary; Olaf David; Kevin Jablonski; Andrew Jones; Paul Meiman; Jason Quinn; Elizabeth Ryan; Meagan Schipanski; Hailey Summers; Mark Uchanski. Connecting Urban Food Plans to the Countryside: Leveraging Denver’s Food Vision to Explore Meaningful Rural–Urban Linkages. Sustainability 2019, 11, 2022 .
AMA StyleBecca Jablonski, Michael Carolan, James Hale, Dawn Thilmany McFadden, Erin Love, Libby Christensen, Tabitha Covey, Laura Bellows, Rebecca Cleary, Olaf David, Kevin Jablonski, Andrew Jones, Paul Meiman, Jason Quinn, Elizabeth Ryan, Meagan Schipanski, Hailey Summers, Mark Uchanski. Connecting Urban Food Plans to the Countryside: Leveraging Denver’s Food Vision to Explore Meaningful Rural–Urban Linkages. Sustainability. 2019; 11 (7):2022.
Chicago/Turabian StyleBecca Jablonski; Michael Carolan; James Hale; Dawn Thilmany McFadden; Erin Love; Libby Christensen; Tabitha Covey; Laura Bellows; Rebecca Cleary; Olaf David; Kevin Jablonski; Andrew Jones; Paul Meiman; Jason Quinn; Elizabeth Ryan; Meagan Schipanski; Hailey Summers; Mark Uchanski. 2019. "Connecting Urban Food Plans to the Countryside: Leveraging Denver’s Food Vision to Explore Meaningful Rural–Urban Linkages." Sustainability 11, no. 7: 2022.
Stip, a physiological disorder, which affects certain pepper (Capsicum annuum) cultivars and pod types, has received limited formal academic attention. The disorder, frequently noted for its appearance in bell peppers, but also present in pimento and New Mexican pod types, has been attributed in the literature to nutrient imbalances and/or temperature extremes. Symptoms of this disorder present on fully developed fruits as brown, black, and yellow ovoid subcutaneous chlorotic lesions ≈1.3 cm in length and 0.6 cm in width extending from the endocarp to the mesocarp, without apparent expression in the cuticle. Chile pepper has been significantly affected by stip for the past several decades leading to varying degrees of commercial losses. Due to the sporadic and seemingly spontaneous nature of the disorder, prolonged research interest has not been sustained. This review provides the reader a comprehensive synthesis of all available literature regarding this physiological disorder. Especially because research into this disorder is scarce, it is essential that any and all previous research be made available together in one document to interested scientists, breeders, and growers. To achieve this goal, all available stip-related publications were obtained and analyzed; additionally, searches were performed using all names associated with the disorder. The literature suggests that stip manifestation is a consequence of an interaction between a genetic component (open-pollinated cultivars being more susceptible to symptom expression than hybrids) and an environmental component (increased nitrogen application, shading, and soil applications of lime appear to increase both severity and incidence).
James C. Fulton; Mark E. Uchanski. A Review of Chile Pepper (Capsicum annuum) Stip: A Physiological Disorder of Peppers. HortScience 2017, 52, 4 -9.
AMA StyleJames C. Fulton, Mark E. Uchanski. A Review of Chile Pepper (Capsicum annuum) Stip: A Physiological Disorder of Peppers. HortScience. 2017; 52 (1):4-9.
Chicago/Turabian StyleJames C. Fulton; Mark E. Uchanski. 2017. "A Review of Chile Pepper (Capsicum annuum) Stip: A Physiological Disorder of Peppers." HortScience 52, no. 1: 4-9.