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Sutour S, Doan VC, Mateo P, Züst T, Hartmann ER, Glauser G, Robert CAM. Isolation and Structure Determination of Drought-Induced Multihexose Benzoxazinoids from Maize ( Zea mays). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3427-3435. [PMID: 38336361 PMCID: PMC10885146 DOI: 10.1021/acs.jafc.3c09141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
Benzoxazinoids (BXDs) are plant specialized metabolites exerting a pivotal role in plant nutrition, allelopathy, and defenses. Multihexose benzoxazinoids were previously observed in cereal-based food products such as whole-grain bread. However, their production in plants and exact structure have not been fully elucidated. In this study, we showed that drought induced the production of di-, tri-, and even tetrahexose BXDs in maize roots and leaves. We performed an extensive nuclear magnetic resonance study and elucidated the nature and linkage of the sugar units, which were identified as gentiobiose units β-linked (1″ → 6') for the dihexoses and (1″ → 6')/(1‴ → 6″) for the trihexoses. Drought induced the production of DIMBOA-2Glc, DIMBOA-3Glc, HMBOA-2Glc, HMBOA-3Glc, and HDMBOA-2Glc. The induction was common among several maize lines and the strongest in seven-day-old seedlings. This work provides ground to further characterize the BXD synthetic pathway, its relevance in maize-environment interactions, and its impact on human health.
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Affiliation(s)
- Sylvain Sutour
- Neuchâtel Platform of Analytical Chemistry, University of Neuchâtel, Neuchâtel 2000, Switzerland
| | - Van Cong Doan
- Institute of Plant Sciences, University of Bern, Bern 3013, Switzerland
- Oeschger Centre for Climate Change Research (OCCR), University of Bern, Bern 3012, Switzerland
- Plant Physiology Unit, The Department of Life Sciences and Systems Biology of the University of Turin, Via Accademia Albertina 13, Torino 10123, Italy
| | - Pierre Mateo
- Institute of Plant Sciences, University of Bern, Bern 3013, Switzerland
| | - Tobias Züst
- Department of Systematic and Evolutionary Botany, University of Zürich, Zürich 8008, Switzerland
| | | | - Gaétan Glauser
- Neuchâtel Platform of Analytical Chemistry, University of Neuchâtel, Neuchâtel 2000, Switzerland
| | - Christelle Aurélie Maud Robert
- Institute of Plant Sciences, University of Bern, Bern 3013, Switzerland
- Oeschger Centre for Climate Change Research (OCCR), University of Bern, Bern 3012, Switzerland
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Yactayo-Chang JP, Block AK. The impact of climate change on maize chemical defenses. Biochem J 2023; 480:1285-1298. [PMID: 37622733 DOI: 10.1042/bcj20220444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 08/01/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
Climate change is increasingly affecting agriculture, both at the levels of crops themselves, and by altering the distribution and damage caused by insect or microbial pests. As global food security depends on the reliable production of major crops such as maize (Zea mays), it is vital that appropriate steps are taken to mitigate these negative impacts. To do this a clear understanding of what the impacts are and how they occur is needed. This review focuses on the impact of climate change on the production and effectiveness of maize chemical defenses, including volatile organic compounds, terpenoid phytoalexins, benzoxazinoids, phenolics, and flavonoids. Drought, flooding, heat stress, and elevated concentrations of atmospheric carbon dioxide, all impact the production of maize chemical defenses, in a compound and tissue-specific manner. Furthermore, changes in stomatal conductance and altered soil conditions caused by climate change can impact environmental dispersal and effectiveness certain chemicals. This can alter both defensive barrier formation and multitrophic interactions. The production of defense chemicals is controlled by stress signaling networks. The use of similar networks to co-ordinate the response to abiotic and biotic stress can lead to complex integration of these networks in response to the combinatorial stresses that are likely to occur in a changing climate. The impact of multiple stressors on maize chemical defenses can therefore be different from the sum of the responses to individual stressors and challenging to predict. Much work remains to effectively leverage these protective chemicals in climate-resilient maize.
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Affiliation(s)
- Jessica P Yactayo-Chang
- United States Department of Agriculture-Agricultural Research Service, Chemistry Research Unit, Gainesville, FL, U.S.A
| | - Anna K Block
- United States Department of Agriculture-Agricultural Research Service, Chemistry Research Unit, Gainesville, FL, U.S.A
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Lin PA, Kansman J, Chuang WP, Robert C, Erb M, Felton GW. Water availability and plant-herbivore interactions. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:2811-2828. [PMID: 36477789 DOI: 10.1093/jxb/erac481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/04/2022] [Indexed: 06/06/2023]
Abstract
Water is essential to plant growth and drives plant evolution and interactions with other organisms such as herbivores. However, water availability fluctuates, and these fluctuations are intensified by climate change. How plant water availability influences plant-herbivore interactions in the future is an important question in basic and applied ecology. Here we summarize and synthesize the recent discoveries on the impact of water availability on plant antiherbivore defense ecology and the underlying physiological processes. Water deficit tends to enhance plant resistance and escape traits (i.e. early phenology) against herbivory but negatively affects other defense strategies, including indirect defense and tolerance. However, exceptions are sometimes observed in specific plant-herbivore species pairs. We discuss the effect of water availability on species interactions associated with plants and herbivores from individual to community levels and how these interactions drive plant evolution. Although water stress and many other abiotic stresses are predicted to increase in intensity and frequency due to climate change, we identify a significant lack of study on the interactive impact of additional abiotic stressors on water-plant-herbivore interactions. This review summarizes critical knowledge gaps and informs possible future research directions in water-plant-herbivore interactions.
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Affiliation(s)
- Po-An Lin
- Department of Entomology, National Taiwan University, Taipei, Taiwan
| | - Jessica Kansman
- Department of Entomology, the Pennsylvania State University, University Park, PA, USA
| | - Wen-Po Chuang
- Department of Agronomy, National Taiwan University, Taipei, Taiwan
| | | | - Matthias Erb
- Institute of Plant Science, University of Bern, Bern, Switzerland
| | - Gary W Felton
- Department of Entomology, the Pennsylvania State University, University Park, PA, USA
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Sprunger CD, Lindsey A, Lightcap A. Above- and belowground linkages during extreme moisture excess: leveraging knowledge from natural ecosystems to better understand implications for row-crop agroecosystems. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:2845-2859. [PMID: 36738284 PMCID: PMC10133998 DOI: 10.1093/jxb/erad045] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 01/31/2023] [Indexed: 06/06/2023]
Abstract
Above- and belowground linkages are responsible for some of the most important ecosystem processes in unmanaged terrestrial systems including net primary production, decomposition, and carbon sequestration. Global change biology is currently altering above- and belowground interactions, reducing ecosystem services provided by natural systems. Less is known regarding how above- and belowground linkages impact climate resilience, especially in intentionally managed cropping systems. Waterlogged or flooded conditions will continue to increase across the Midwestern USA due to climate change. The objective of this paper is to explore what is currently known regarding above- and belowground linkages and how they impact biological, biochemical, and physiological processes in systems experiencing waterlogged conditions. We also identify key above- and belowground processes that are critical for climate resilience in Midwestern cropping systems by exploring various interactions that occur within unmanaged landscapes. Above- and belowground interactions that support plant growth and development, foster multi-trophic-level interactions, and stimulate balanced nutrient cycling are critical for crops experiencing waterlogged conditions. Moreover, incorporating ecological principles such as increasing plant diversity by incorporating crop rotations and adaptive management via delayed planting dates and adjustments in nutrient management will be critical for fostering climate resilience in row-crop agriculture moving forward.
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Affiliation(s)
| | - Alex Lindsey
- Department of Horticulture and Crop Science, The Ohio State University, OH, USA
| | - Ainsley Lightcap
- School of Environment and Natural Resources, The Ohio State University, OH, USA
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Fortuna TM, Le Gall P, Mezdour S, Calatayud PA. Impact of invasive insects on native insect communities. CURRENT OPINION IN INSECT SCIENCE 2022; 51:100904. [PMID: 35304314 DOI: 10.1016/j.cois.2022.100904] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 03/04/2022] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
Several biophysical factors are leading to the loss of biodiversity, among them the dominance of exotic invasive species on native communities is important. Their dominance can lead to changes in the structure of insect communities, by competing and displacing native species to other crops or habitats. These changes can impact the herbivore's natural enemies in invaded areas by diverging them from suitable herbivores and altering their biological control process. The development of edible insects and derived products at an industrial scale can also have an impact on the local fauna by the risks of spillover and accidental release in nature. Several area-wide integrated pest management programs are also using the sterile insect technique to control insect pests and disease' vectors. This technique is becoming largely used; however, its application as 'non-intrusive to the environment' is controversial particularly when eradication is concerning species that are at the basis of food webs.
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Affiliation(s)
- Taiadjana M Fortuna
- Laboratoire Evolution, Génome, Comportement et Ecologie, UMR UPSaclay, CNRS 9191, IRD 247 Site IDEEV, 91190 Gif-sur-Yvette, France.
| | - Philippe Le Gall
- Laboratoire Evolution, Génome, Comportement et Ecologie, UMR UPSaclay, CNRS 9191, IRD 247 Site IDEEV, 91190 Gif-sur-Yvette, France
| | | | - Paul-André Calatayud
- Laboratoire Evolution, Génome, Comportement et Ecologie, UMR UPSaclay, CNRS 9191, IRD 247 Site IDEEV, 91190 Gif-sur-Yvette, France; International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya
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Chemical Ecology and Predator-Prey Interactions: Understanding the Role of Chemistry on Complex, Trophic Relationships in a Changing World. J Chem Ecol 2021; 47:819-821. [PMID: 34748130 DOI: 10.1007/s10886-021-01328-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 10/19/2022]
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