An Overview of the Mechanisms Involved in Coffee-Hemileia vastatrix Interactions: Plant and Pathogen Perspectives

Agronomy, Год журнала: 2022, Номер 12(2), С. 326 - 326

Опубликована: Янв. 26, 2022

Coffee is one of the most consumed beverages in world. It also globally traded commodities. leaf rust (CLR), caused by biotrophic fungus Hemileia vastatrix, important disease affecting Arabica coffee growing worldwide, leading to significant yield losses if no control measures are applied. A deep understanding complex mechanisms involved coffee-H. vastatrix interactions, such as pathogen variability and governing plant resistance susceptibility, required breed efficiently for durable design new approaches crop protection. Here we summarize our current across multiple areas related infection, candidate effectors, breeding resistance, various components immune system, reviewing a comprehensive body research on CLR advances recently made. We update information about defense responses activated application inducers, promising alternative fungicides CLR. Moreover, identify discuss future directions further research.

Язык: Английский

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Opportunities for enhancing the climate resilience of coffee production through improved crop, soil and water management

Agroecology and Sustainable Food Systems, Год журнала: 2023, Номер 47(8), С. 1125 - 1157

Опубликована: Июнь 27, 2023

Climate change is adversely affecting coffee production, impacting both yields and quality. Coffee production dominated by the cultivation of Arabica Robusta coffee, species that represent 99% but will be affected climate change. Sustainable management practices can enhance resilience livelihoods to are urgently needed as supports over 25 million people globally, majority whom smallholder farmers located in belt spanning tropics. These communities already experiencing impacts We conducted a systematic review, identifying 80 studies describe direct indirect on agroecosystems, or identify agroecological with potential resilience. Adverse environmental include reduction area suitable for lower yields, increased intensity frequency extreme events, greater incidence pests diseases. Potential solutions altitudinal shifts, new, resilient cultivars, altering agrochemical inputs, agroforestry. However, financial, technical constraints limit availability many these approaches farmers, particularly producers. There therefore an urgent need address barriers through policy market mechanisms, stakeholder engagement continue meeting growing demand coffee.

Язык: Английский

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Unraveling farmers' interrelated adaptation and mitigation adoption decisions under perceived climate change risks

Journal of Rural Studies, Год журнала: 2024, Номер 109, С. 103329 - 103329

Опубликована: Июнь 25, 2024

Climate change poses a risk to agricultural activity. Understanding farmers' behaviors is increasingly important for managing climate risks and improving their adaptive capacity. This study aims identify the key risk-related drivers influencing several adaptation mitigation strategies by adopting various Climate-Smart Agriculture (CSA) technologies reduce vulnerability. We investigate interrelated nature of adoption CSA related soil fertility, conservation, agroforestry, agro-advisory apps, alternative coffee farming practices. To explore role perceived technology adoption, we constructed an extended model that combines protection motivation theory, social demographic determinants. collected empirical data from 519 farmers in Costa Rica analyzed through multivariate probit technique. The analysis reveals how influence severity, vulnerability, response efficacy, self-efficacy, cost changes according technology. As risks, show likelihood focused on decreases with increasing risk. Other determinants, such as number buyers membership organization, steer fertility practices, mobile apps. Main theoretical implications include integration perceptions since it reflects fear potential losses or additional costs associated implementing these finding gives nuanced explanation decisions under pressing threats. Practical are promotion programs must consider see decisions, meaning more fruitful synergies could be promoted acknowledging bundled multiple technologies. Thus, promoting mix practices essential achieving resilience while productivity.

Язык: Английский

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Coffee Leaf Rust (Hemileia vastatrix) from the Recent Invasion into Hawaii Shares a Genotypic Relationship with Latin American Populations

Journal of Fungi, Год журнала: 2022, Номер 8(2), С. 189 - 189

Опубликована: Фев. 15, 2022

Hawaii has long been one of the last coffee-producing regions world free coffee leaf rust (CLR) disease, which is caused by biotrophic fungus Hemileia vastatrix. However, CLR was detected in farms and feral on island Maui February 2020 subsequently other islands Hawaiian archipelago. The source outbreak not known, could have entered from more than 50 nations that harbor pathogen. To determine source(s) inoculum, we analyzed a set eleven simple sequence repeat markers (SSRs) generated isolates within dataset 434 collected 17 countries spanning both old new populations, then conducted minimum network (MSN) analysis to trace most likely pathway H. vastatrix taken Hawaii. Forty-two multilocus genotypes (MLGs) were found global dataset, with all assignable MLG 10 or derived it. widespread Central America Jamaica, making this region probable inoculum for An examination weather patterns during months preceding introduction makes it unlikely pathogen windborne islands. Likely scenarios are accidental spores infected plant material travelers seasonal workers, improperly fumigated shipments originating Caribbean

Язык: Английский

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Coffee breeding in a time of crisis: F₁ hybrids in Central America since 1990

Plants People Planet, Год журнала: 2024, Номер 6(5), С. 1070 - 1079

Опубликована: Янв. 11, 2024

Social Impact Statement Central America is renowned for producing some of the world's finest coffee, prized its quality and flavor. With coffee being a major export crop many countries, region's economic, social, cultural well‐being closely linked to success industry. Coffee breeding supports industry's long‐term sustainability competitiveness by developing new varieties that are more productive, disease‐resistant, climate resilient, adapted producer's realities. Ongoing efforts in have significant implications livelihoods thousands farmers their families, economies American preservation rich tradition culture. Summary The central objective understand how programs evolved help adapt rapidly changing political, institutional, environmental conditions since 1990. Before then, breeders focused primarily on productivity, dwarf bred intensive monoculture production. Since 1990, shifted work address change, diseases pests, growing industry interest cup quality, unprecedented price volatility. Much has from public institutions international technical assistance agencies, non‐governmental organizations (NGOs), private companies. Their focus F 1 coffees designed agroforestry production and, which, can be developed quickly response conditions. This case study also complicates narratives about place hybrid agricultural modernization during 20th 21st centuries. Analyze documents produced over past 30 years key organizations, governments, trade assess evolution historical context, progress field. Some hybrids shown considerable promise, but challenges surrounding propagation, distribution, cost—as well as suitability specialty market—have so far prevented adopting them large scale. switch represents deep strategic shift America, attuned needs farmers. While farmers' challenges, cost logistical issues remain challenge.

Язык: Английский

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Coffee sustainability: leveraging collaborative breeding for variety improvement

Frontiers in Sustainable Food Systems, Год журнала: 2024, Номер 8

Опубликована: Июль 31, 2024

The sustainability of global coffee supply is threatened by production challenges worsening with every decade since the turn 21st century. Coffee among most popular beverages in world, and its supports livelihoods millions people, mostly smallholder farmers. With a market value exceeding US$130 billion, industry source export revenue for producing countries, majority which are developing nations Global South. Climate change, pests, diseases continue to hamper productivity, profitability, countries’ competitiveness market. At same time, demand continues rise. A crucial pillar safeguarding future continuously improved varieties suitable changing environment, that address needs farmers industry. Yet, national breeding programs grossly out touch climate change reality dynamics. Working isolation, these constrained unstable funding, limited sources genetic variability, inaccessibility modern technologies necessary accelerate process. We review here key challenges, status diversity, approaches. Additionally, we explore opportunities leveraging pre-competitive collaborative approach encompassing sharing germplasm, cross-border multi-environment trials next-generation cultivars. argue efforts should be informed all stakeholders chain including researchers, farmers, small medium-sized enterprises investing processing roasting, consumers. Using emerging reviving producers Southeast Asia Eastern Africa as model, how paradigm shift from historically nation-centric more forward-looking model could improve efficiency variety improvement face growing demand.

Язык: Английский

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Description of an Arabica Coffee Ideotype for Agroforestry Cropping Systems: A Guideline for Breeding More Resilient New Varieties

Plants, Год журнала: 2022, Номер 11(16), С. 2133 - 2133

Опубликована: Авг. 16, 2022

Climate change (CC) is already impacting Arabica coffee cultivation in the intertropical zone. To deal with this situation, it no longer possible to manage crop using industrial agriculture techniques, which has been main strategy implemented since Green Revolution. Developing a more sustainable system that respects people and environment essential guarantee future generations’ access natural resources. In case of coffee, solution found. Agroforestry proposed as an ecosystem-based mitigate adapt CC. At least 60% produced agroforestry systems (AFSs), are most way produce coffee. Nevertheless, AFS currently uncompetitive partly because all modern varieties, selected for full-sun intensive cropping systems, have low yields shaded environments. Here we review reasons why part CC, breeding work undertaken system. Based on literature data, purposes also define first time one ideotype required cultivation. The four traits are: (1) productivity based F1 hybrid vigor, tree volume flowering intensity under shade; (2) beverage quality by wild Ethiopian accessions female progenitors selecting criterion specific biochemical molecular predictors; (3) plant health ensure good tolerance stress, especially biotic; (4) fertilization promote production. For each these traits, numerous criteria threshold values be achieved per trait were identified. Through research, was defined help create new varieties within next 10 years.

Язык: Английский

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Alternative plant protection strategies for tomorrow's coffee

Plant Pathology, Год журнала: 2022, Номер 72(3), С. 409 - 429

Опубликована: Ноя. 16, 2022

Abstract Continuous pesticide usage has negative impacts on people and ecosystems associated with coffee farms. Alternative plant protection strategies can be implemented that are sustainable for both the environment farmer. In this review, new genomic techniques (NGTs) such as RNAi (RNA interference, using spray‐induced gene silencing – SIGS) presented a possible novel strategy to manage Coffea arabica pests diseases. Exploitation of agroforestry system (AFS) is another strategy, offering ecosystem restoration functions. Interactions within coffee‐AFS were found hinder bolster development some Biological control represents third been examined to‐date combat important diseases (i.e., American leaf spot, black twig borer, berry disease, miner, rust, wilt disease green scale). The astute use RNAi, AFS and/or biological have potential provide alternatives conventional pesticides future production. However, these approaches must compatible farmers' local needs accessibility bolstered through nationwide support by advisory services authorities.

Язык: Английский

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Potential Coffee Distribution in a Central-Western Region of Mexico

Ecologies, Год журнала: 2023, Номер 4(2), С. 269 - 287

Опубликована: Апрель 3, 2023

Currently, there is a world coffee production crisis which has been attributed, among other factors, to the COVID-19 pandemic that affected development of productive agricultural activities. In this scenario, Mexico in declining situation by showing reduction areas recent years. Therefore, it necessary promote actions contribute recovery resource, particularly states with potential. present work, potentially suitable for cultivation are identified through application tools allow characterizing biophysical conditions define current spatial distribution and, from analysis these characteristics, generate Potential Distribution Model (PDM) zones production. The methodology was developed Maximum Entropy (MaxEnt) algorithm, starting collection and preparation presence records, followed correlation identification significant variables, subsequent execution model various configurations observe contribution each variable jackknife test, finally validation random sample selection 30%, achieve an AUC 0.98 TSS 0.96. able identify quantify environmentally production, highlighting regions ideal potential specie. These results intended serve as basis generation planning strategies aimed at managing, improving, increasing areas, well being used establish biological corridors biodiversity, conservation, alternative economic activities such tourism furthermore future work on scenarios impacts climate change. It concluded 30% Nayarit’s territory cultivation, especially region delimited municipalities Tepic Xalisco, eastern zone Compostela, southwest San Blas, should be considered Priority Conservation Area (APC) state.

Язык: Английский

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Beyond the bean: Analyzing diversified farming, food security, dietary diversity, and gender in Nicaragua’s smallholders coffee cooperatives

Agroecology and Sustainable Food Systems, Год журнала: 2023, Номер 47(4), С. 579 - 620

Опубликована: Фев. 9, 2023

ABSTRACTDiversification is key for agroecological transformations, but little known about how it relates to farmers' dietary diversity and food sovereignty. Our team coffee cooperative staff conducted a participatory action research mixed methods study, including 171 surveys 50 interviews. Over 70% of the farmers reported self-initiated diversification activities. Statistical analysis showed significant positive correlation between crop diversity, while controlling farm size income. To assess gender relations females responded 41% surveys, we separated focus groups by sex. Average male-owned farms were 1.8 ha larger than women-owned farms, yet found no differences in household security or diversity. Additional disparities included male vs. female perceptions who does additional work decides strategies. Although co-op has strong equity technical assistance program, our extension training documents identified useful content smaller percent participants sessions. Suggested strategic actions planning include supporting: (1) land ownership, (2) focused farmer-led experimentation, (3) more men on gender, women diversification, all feminist agroecology.KEYWORDS: AgroecologygenderCentral Americadiversificationfood sovereigntyparticipatory researchClimate adptation AcknowledgmentWe are grateful PRODECOOP families, facilitators promoters each cooperative, members project as well support from Raul Diaz, Rosario Herrera, at ASDENIC Nicaragua Universidad Nacional Agraria (UNA). We also broader collaboratives this that V. Ernesto Mendez, Martha Caswell Rose Cohen. Thanks Bill Sundstrom an earlier review paper. The projects study designs approved Santa Clara University's Institutional Review Board, with protocol first part 24 June 2013, second 17 2015.Disclosure statementMisael Rivas works PRODECOOPCorrection StatementThis article been corrected minor changes. These changes do not impact academic article.Additional informationFunding Funding Assessment Diversification Strategies Smallholder Coffee Systems [No AF 1507-086: No FDNC Engt 00063479] was supported under Thought Food Initiative Agropolis Foundation [through Investissements d'avenir programme reference number ANR10-LABX-0001-01], Fondazione Cariplo Daniel Nina Carasso Foundation. provided National Science grant BCS 2117976 University Office Provost, Dean Arts Sciences, Honors Program, Hayes Grant, Environmental Justice Common Good Center Innovation Entrepreneurship.

Язык: Английский

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