New Phytologist最新文献_第7页

Nectar in oak savannas: implications for butterfly conservation

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-09 DOI: 10.1111/nph.70036

Meigan Turner, Kevin E. McCluney, Ryan P. Walsh, Helen J. Michaels

{"title":"Nectar in oak savannas: implications for butterfly conservation","authors":"Meigan Turner, Kevin E. McCluney, Ryan P. Walsh, Helen J. Michaels","doi":"10.1111/nph.70036","DOIUrl":"https://doi.org/10.1111/nph.70036","url":null,"abstract":"<h2> Introduction</h2>\u0000Oak savanna habitats historically covered at least 11 million acres of the Midwestern United States (Abella et al., 2020). Oak savanna habitats are characterized by sparsely dispersed mature oak trees with an understory of grasses and forbs, achieving a semi-open canopy through fire and grazing disturbances (Olson, 1996; Sankaran et al., 2004; Anderson et al., 2007). Since European settlement, oak savannas have become highly fragmented due to fire suppression, agriculture, and urbanization (Nuzzo, 1986; Grossmann & Mladenoff, 2007) causing a severe decline in the diversity and abundance of native wildlife populations (Swengel & Swengel, 1999; Kocher & Williams, 2000; Meehan et al., 2013; Archer et al., 2014). With c. 0.02% of the historic range intact (Nuzzo, 1986) Midwest oak savannas are classified as a critically imperiled habitat in the United States (Noss et al., 1995). Oak savannas naturally preserve high levels of biodiversity relative to neighboring habitats (Leach & Givnish, 1999), making them an important focus for conservation efforts.\u0000Habitat conservation can be guided by historical records (Landres et al., 1999; Swetnam et al., 1999), reference sites with minimal disturbance, or by the living requirements of an indicator species that requires high-quality habitat to survive. A previously used indicator species for oak savanna habitats is the federally endangered Karner blue butterfly (Plebejus melissa samuelis) (U.S. Fish and Wildlife Service, 1992; Shuey, 1997; Chan & Packer, 2006). Due to the severe fragmentation of oak savannas and the intermediate flight ability of this small butterfly (King, 2003), conservationists have worked to improve the quality of remaining habitats and reintroduce populations. The success of Karner blue butterfly reintroduction depends on the suitability of local habitat, the characteristics of which are not yet fully understood (Pickens & Root, 2008; Walsh, 2017). Studies often relate butterfly abundance with host-plant abundance (Fred & Brommer, 2003) or spatial distributions that limit search time (Crone & Schultz, 2022), nectar species abundance (Holl, 1995; Schultz & Dlugosch, 1999), and the area of the habitat (Moilanen & Hanski, 1998; Bergman & Kindvall, 2004).\u0000Vegetation surveys evaluating the flowering plants available to pollinators commonly measure the density of flowering stems within a management unit (Williams, 1988; Chan & Packer, 2006; Walsh, 2017). Est","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"87 6 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Minimum leaf conductance during drought: unravelling its variability and impact on plant survival

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-09 DOI: 10.1111/nph.70052

Régis Burlett, Santiago Trueba, Xavier Paul Bouteiller, Guillaume Forget, José M. Torres-Ruiz, Nicolas K. Martin-StPaul, Camille Parise, Hervé Cochard, Sylvain Delzon

{"title":"Minimum leaf conductance during drought: unravelling its variability and impact on plant survival","authors":"Régis Burlett, Santiago Trueba, Xavier Paul Bouteiller, Guillaume Forget, José M. Torres-Ruiz, Nicolas K. Martin-StPaul, Camille Parise, Hervé Cochard, Sylvain Delzon","doi":"10.1111/nph.70052","DOIUrl":"https://doi.org/10.1111/nph.70052","url":null,"abstract":"<h2> Introduction</h2>\u0000In the last few decades, a large number of studies have brought to light the particular threat of drought and increasing temperatures on plant survival (Allen & Breshears, 1998; Carnicer et al., 2011; Brodribb et al., 2019; Hammond et al., 2022). One of the main consequences of increasing environmental drought stress is a negative impact on the hydraulic function of plants (Choat et al., 2012; Arend et al., 2021). Indeed, during prolonged drought, dehydration causes large water potential differences between soil and leaves, which can result in hydraulic dysfunction due to embolism formation in the xylem conduits. Such hydraulic failures, induced by sharp drops in water potential, can be avoided through stomatal closure (Creek et al., 2020), which plays a major role in plant survival under drought (Martin-StPaul et al., 2017). Despite stomatal closure being a key reaction to reduce significant plant water losses, water is still lost through imperfectly closed stomata and the leaf cuticle. This process can be quantified by the minimum leaf conductance (gmin) (Duursma et al., 2018). Although the rates of whole-plant water conductance are greatly diminished, gmin can be sufficient to deplete the plant water reserves during stress. Therefore, under prolonged drought, continued water loss via gmin can lead to catastrophic hydraulic failure and substantial tissue dehydration that contribute to organ and plant death (Urli et al., 2013; Mantova et al., 2023; Petek-Petrik et al., 2023). Consequently, gmin has been highlighted as an important trait in predicting whole-plant transpiration and water status under severe stress (Barnard & Bauerle, 2013; Kala et al., 2016). More recently, gmin has been advanced as a key trait to predict the time taken by a plant to reach hydraulic failure (THF) and subsequent mortality during drought (Cochard et al., 2021; Ruffault et al., 2022a; Petek-Petrik et al., 2023) and to predict other current hazards to vegetation such as wildfire incidence (Ruffault et al., 2022b; Torres-Ruiz et al., 2024).\u0000Synthetic studies gathering gmin data showed that estimations of residual transpiration in the literature come from a wide variety of experimental techniques (Kerstiens, 1996; Duursma et al., 2018). While cuticular conductance on isolated cuticles has been measured since early studies (Stålfelt, 1956; Schönherr & Mérida, 1981; Pearcy et al., 1989","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"49 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plant nitrogen uptake preference and drivers in natural ecosystems at the global scale

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-08 DOI: 10.1111/nph.70030

Jinhua Mao, Jinsong Wang, Jiaqiang Liao, Xingliang Xu, Dashuan Tian, Ruiyang Zhang, Jinlong Peng, Shuli Niu

{"title":"Plant nitrogen uptake preference and drivers in natural ecosystems at the global scale","authors":"Jinhua Mao, Jinsong Wang, Jiaqiang Liao, Xingliang Xu, Dashuan Tian, Ruiyang Zhang, Jinlong Peng, Shuli Niu","doi":"10.1111/nph.70030","DOIUrl":"https://doi.org/10.1111/nph.70030","url":null,"abstract":"\u0000<ul>\u0000<li>Elucidating plant nitrogen (N) acquisition is crucial for understanding plant N strategies and ecosystem productivity. However, the variation in plant N uptake preference and its controlling factors on a global scale remain unclear.</li>\u0000<li>We conducted a global synthesis to explore plant N preference patterns and driving factors.</li>\u0000<li>Globally, the average contributions of ammonium (NH4+), nitrate (NO3−), and glycine N to the total plant N uptake were 41.6 ± 1.1%, 32.8 ± 1.2%, and 25.6 ± 0.9%, respectively. However, plant N uptake preferences differed significantly among climatic regions and vegetation types. Soil NH4+ was the most preferred N form by plants in (sub)tropical regions, whereas NO3− preference was significantly higher in high-latitude than low-latitude regions. Plant functional type was one of the most important factors driving NO3− preference, with significantly higher NO3− preference of nonwoody species than broadleaf-evergreen, conifer, and shrub species. Organic N preference was lowest in (sub)tropics and significantly lower than that in temperate and alpine regions.</li>\u0000<li>This study shows clear climatic patterns and different influencing factors of plant NH4+ and NO3− preference, which can contribute to the accurate prediction of N constraints on ecosystem productivity and soil carbon dynamics.</li>\u0000</ul>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"12 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143575364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unlocking the potential of genome editing in agriculture with tissue culture-free techniques

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-08 DOI: 10.1111/nph.70046

Manman Hu, Degao Liu

引用次数: 0

Unraveling the extensive phylogenetic discordance and evolutionary history of spurless taxa within the Aquilegia ecalcarata complex

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-07 DOI: 10.1111/nph.70039

Huijie Liu, Baocai Han, Honglin Mou, Yao Xiao, Yongchao Jiang, Hongzhi Kong, Guixia Xu

{"title":"Unraveling the extensive phylogenetic discordance and evolutionary history of spurless taxa within the Aquilegia ecalcarata complex","authors":"Huijie Liu, Baocai Han, Honglin Mou, Yao Xiao, Yongchao Jiang, Hongzhi Kong, Guixia Xu","doi":"10.1111/nph.70039","DOIUrl":"https://doi.org/10.1111/nph.70039","url":null,"abstract":"\u0000<ul>\u0000<li>Parallel evolution of the same, or at least very similar, phenotype(s) in different lineages is often interpreted as evidence for the action of natural selection. However, caution is required when inferring parallel evolution based on uncertain or potentially incorrect phylogenetic frameworks.</li>\u0000<li>Here, by conducting extensive phylogenomic and population genetic analyses, we aim to clarify the evolutionary history of spurless taxa within the Aquilegia ecalcarata complex.</li>\u0000<li>We observed substantial discordance in the phylogenetic patterns across the entire genome, primarily attributed to ancient introgression and incomplete lineage sorting. Additionally, we identified several spurless lineages whose phylogenetic positions were distorted by admixture events. Using a backbone tree and demographic modeling, we determined that these spurless taxa independently originated twice within this group. Intriguingly, our investigation revealed that the spurless taxa experienced population expansion during global cooling, while their spurred sister groups underwent population contraction. The parallel losses of petal spurs, therefore, may be linked to adaptations for low-temperature conditions.</li>\u0000<li>These findings emphasize the importance of comprehensive population-level analyses in phylogenetic inference and provide valuable insights into the dynamics of trait loss and its implications for the adaptive strategies.</li>\u0000</ul>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"16 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143569563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ergosterol-induced immune response in barley involves phosphorylation of phosphatidylinositol phosphate metabolic enzymes and activation of diterpene biosynthesis

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-07 DOI: 10.1111/nph.70022

Pia Saake, Mathias Brands, Asmamaw Bidru Endeshaw, Sara Christina Stolze, Philipp Westhoff, Gerd Ulrich Balcke, Götz Hensel, Nicholas Holton, Cyril Zipfel, Alain Tissier, Hirofumi Nakagami, Alga Zuccaro

{"title":"Ergosterol-induced immune response in barley involves phosphorylation of phosphatidylinositol phosphate metabolic enzymes and activation of diterpene biosynthesis","authors":"Pia Saake, Mathias Brands, Asmamaw Bidru Endeshaw, Sara Christina Stolze, Philipp Westhoff, Gerd Ulrich Balcke, Götz Hensel, Nicholas Holton, Cyril Zipfel, Alain Tissier, Hirofumi Nakagami, Alga Zuccaro","doi":"10.1111/nph.70022","DOIUrl":"https://doi.org/10.1111/nph.70022","url":null,"abstract":"<h2> Introduction</h2>\u0000Lipids are a diverse group of molecules that play crucial roles in plant nutrition, development, and plant–microbe interactions. As major constituents of the plasma and organelle membranes, they work in conjunction with the cell wall to establish the interface for environment interactions. Here, they act as structural elements, modulate physicochemical membrane properties, function as (stress) signaling molecules, and influence subcellular protein localization through lipid–protein interactions (Noack & Jaillais, 2020; Macabuhay et al., 2022; Zarreen et al., 2023).\u0000Lipids are categorized into three main classes based on their chemical structures: sphingolipids, sterols, and (glycero)phospholipids (Moreau & Bayer, 2023). Among these, phosphoinositides stand out as crucial, low-abundance signaling molecules, which are derived from phosphatidylinositol (PI), a ubiquitous phospholipid containing myo-inositol in its head group. PI can be phosphorylated at various positions by phosphatidylinositol kinases (PIKs) to produce phosphatidylinositol phosphates (PIPs). In plants, phosphatidylinositol 4-phosphate (PI4P) is the most abundant phosphoinositide, although PI3P, PI5P, and diphosphorylated forms, such as PI(4,5)P2 and PI(3,5)P2 have also been detected (Munnik & Vermeer, 2010).\u0000During abiotic and biotic stress, PIPs can be interconverted and hydrolyzed to produce the signaling lipid phosphatidic acid (PA). PIPs are also associated with disease resistance (Xing et al., 2019; Qin et al., 2020), cytoskeletal rearrangements (Sinha et al., 2024), endo- and exocytosis (Synek et al., 2021; Marković & Jaillais, 2022), and the formation of membrane nanodomains (Gronnier et al., 2017; Jaillais & Ott, 2020). Nanodomains, accommodating membrane-associated kinases, and receptor-like kinases can act as signaling hubs during plant–microbe interactions to enable perception of microbe- or damage-associated molecular patterns (MAMPs or DAMPs) and subsequent immune signaling (Couto & Zipfel, 2016; Jaillais & Ott, 2020).\u0000Microbe-associated molecular pattern recognition initiates a signaling cascade often involving an increase in cytosolic calcium concentration ([Ca2+]cyt), production of reactive oxygen species (ROS), and phosphorylation of mitogen-activated protein (MAP) kinases (MAPKs). This cascade ultimately leads to altered gene expression and secretion of chemically diverse antimicrobial compounds, such as phytoalexins (Siebers et al., 2016; DeFalco & Zipfel, 2021). Altogether, this response is known as pattern-triggered immunity (PTI). While plant lipids are important signaling ","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"212 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143569562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discovery of SOD5 as a novel regulator of nitrogen-use efficiency and grain yield via altering auxin level

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-06 DOI: 10.1111/nph.70038

Siyu Zhang, Yunzhi Huang, Zhe Ji, Yongzhi Fang, Yanan Tian, Chengbo Shen, Yaojun Qin, Menghan Huang, Shuming Kang, Shunqi Li, Xuan Liu, Ying Yu, Zulong Mo, Bingyu Jiang, Yafeng Ye, Shan Li

{"title":"Discovery of SOD5 as a novel regulator of nitrogen-use efficiency and grain yield via altering auxin level","authors":"Siyu Zhang, Yunzhi Huang, Zhe Ji, Yongzhi Fang, Yanan Tian, Chengbo Shen, Yaojun Qin, Menghan Huang, Shuming Kang, Shunqi Li, Xuan Liu, Ying Yu, Zulong Mo, Bingyu Jiang, Yafeng Ye, Shan Li","doi":"10.1111/nph.70038","DOIUrl":"https://doi.org/10.1111/nph.70038","url":null,"abstract":"\u0000<ul>\u0000<li>Auxin has emerged as a crucial regulator of plant nitrogen (N)-use efficiency (NUE) through indirect effects on plant growth and development and direct regulation of N metabolism-related genes.</li>\u0000<li>We previously reported DULL NITROGEN RESPONSE1 (DNR1) as an amino transferase that inhibits auxin accumulation and negatively regulates rice (Oryza sativa) NUE and grain yield. However, the identities of molecular regulators acting upstream of DNR1 await exploration.</li>\u0000<li>Our current work identifies SUPPRESSOR OF DNR1 ON CHROMOSOME 5 (SOD5) from a DNR1 suppressor mutant. SOD5 encodes a v-myb avian myeloblastosis viral oncogene homolog (MYB) transcription factor that directly binds to the DNR1 promoter, activating its expression and further repressing auxin accumulation.</li>\u0000<li>Knocking out SOD5 significantly increases NUE and grain yield, especially under low N conditions. Therefore, targeting SOD5 offers a promising strategy for enhancing crop performance, supporting the development of crops better suited for sustainable agriculture.</li>\u0000</ul>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"53 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143560688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Associational resistance in the milpa: herbivore-induced maize volatiles enhance extrafloral nectar-mediated defenses in common bean via shared parasitoids

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-06 DOI: 10.1111/nph.70029

Patrick Grof-Tisza, Yulisa Patiño Moreno, Clarisse Erb, Gaston Nobel, Mary V. Clancy, Betty Benrey

{"title":"Associational resistance in the milpa: herbivore-induced maize volatiles enhance extrafloral nectar-mediated defenses in common bean via shared parasitoids","authors":"Patrick Grof-Tisza, Yulisa Patiño Moreno, Clarisse Erb, Gaston Nobel, Mary V. Clancy, Betty Benrey","doi":"10.1111/nph.70029","DOIUrl":"https://doi.org/10.1111/nph.70029","url":null,"abstract":"\u0000<ul>\u0000<li>Mixed cropping systems typically provide better natural pest control compared with monocultures, although the success varies depending on the crop and cultivar combinations. Understanding trait interactions that confer associational resistance (AR) to companion plants is key to optimizing these benefits. The Mesoamerican milpa system, known for its pest resistance, provides a model for studying these interactions.</li>\u0000<li>We tested two hypotheses to investigate whether access to extrafloral nectar (EFN) produced by Phaseolus vulgaris (common bean) can protect companion Zea mays (maize): (1) access to EFN enhances the survival and performance of a parasitoid wasp, leading to increased parasitism of fall armyworm (FAW) caterpillars on accompanying maize and reduced herbivory, and (2) bean plants can detect maize herbivore-induced plant volatiles (HIPVs) and respond by increasing EFN secretion.</li>\u0000<li>Controlled experiments demonstrated that wasps with access to EFN from bean plants lived longer, had higher fecundity, and parasitized more caterpillars on companion maize, thereby reducing herbivore damage. Additionally, caterpillar-damaged maize primed EFN secretion in companion bean plants via HIPVs.</li>\u0000<li>Our findings reveal a potentially important AR mechanism in the milpa, contributing to its reputed pest resistance. This understanding could inform the design of sustainable mixed cropping systems that enhance natural pest control.</li>\u0000</ul>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"1 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143569565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shifts in vernalization and phenology at the rear edge hold insight into the adaptation of temperate plants to future milder winters

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-06 DOI: 10.1111/nph.70005

Antoine Perrier, Megan C. Turner, Laura F. Galloway

{"title":"Shifts in vernalization and phenology at the rear edge hold insight into the adaptation of temperate plants to future milder winters","authors":"Antoine Perrier, Megan C. Turner, Laura F. Galloway","doi":"10.1111/nph.70005","DOIUrl":"https://doi.org/10.1111/nph.70005","url":null,"abstract":"<h2> Introduction</h2>\u0000Organisms exposed to cyclical environmental changes often evolve mechanisms to sense these fluctuations and to time developmental shifts to occur under favorable conditions (Preston & Sandve, 2013). In temperate plants, vernalization, the prolonged exposure to nonlethal seasonal cold (Chouard, 1960), serves as an important cue so that key life-cycle transitions will occur after winter, for example vegetative growth and reproduction (Amasino, 2005). However, relying on such cues may be detrimental under rapidly changing environments. This is of particular concern in the context of ongoing global warming, as it is expected to affect the strength and timing of seasonal temperatures experienced by natural and agricultural species (Willis et al., 2008; Blackman, 2017). Species requiring vernalization will likely be negatively affected by climate warming as shorter and milder winters become more common (Luedeling et al., 2011; Anderson, 2023). Such conditions are expected to lead to a reduction in reproduction (Padhye & Cameron, 2009; Liu et al., 2012; Satake et al., 2013) or shifts in reproductive phenology outside of optimal time windows (Fitter & Fitter, 2002; Parmesan & Yohe, 2003; Love & Mazer, 2021; Faidiga et al., 2023; Geissler et al., 2023). It is therefore critical to understand the response to seasonal cuing, and variation in this response, to determine possible consequences of expected warmer climates for temperate plant species.\u0000Vernalization requirements and cue responses often vary within and between species in response to differences in winter conditions (Andrés & Coupland, 2012; Blackman, 2017; Preston & Fjellheim, 2022). This suggests that while these mechanisms are crucial to complete the life cycle, they vary enough to allow persistence across heterogeneous environments. Studies have explored variation in cueing reproduction across environments by testing for clines in vernalization requirements and phenological response to temperature gradients (Blackman, 2017). This body of work provides evidence of a reduction in vernalization requirements with increases in temperature (Wesselingh et al., 1994; Dijk et al., 1997; Boudry et al., 2002; Stinchcombe et al., 2005; Jokela et al., 2015). Reproductive phenology also varies over temperature gradients though a general pattern is less clear. For example, flowering is later with the later arrival of spring-like conditions at high latitudes than at lower ones in Arabidopsis thaliana (Stinchcombe et al., 2004; Lempe et al<","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"30 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143560687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Arabidopsis perceives caterpillar oral secretion to increase resistance by reactive oxygen species-enhanced glucosinolate hydrolysis

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-03-06 DOI: 10.1111/nph.70014

Xueying Chen, Man-Ni Wu, Qiu-Yi Chen, Pai Li, Mu-Yang Wang, Jiancai Li, Xiu-Fang Xin, Ying-Bo Mao

{"title":"Arabidopsis perceives caterpillar oral secretion to increase resistance by reactive oxygen species-enhanced glucosinolate hydrolysis","authors":"Xueying Chen, Man-Ni Wu, Qiu-Yi Chen, Pai Li, Mu-Yang Wang, Jiancai Li, Xiu-Fang Xin, Ying-Bo Mao","doi":"10.1111/nph.70014","DOIUrl":"https://doi.org/10.1111/nph.70014","url":null,"abstract":"\u0000<ul>\u0000<li>In Arabidopsis, the outbreaks of reactive oxygen species (ROS) occur upon pathogen recognition by pattern- and effector-triggered immunity (PTI and ETI, respectively), which plays a significant role in disease resistance. Here, we found that Arabidopsis also experiences two outbreaks of ROS (oral secretion (OS)-induced ROS (ROSOS)) upon the perception of OS from cotton bollworm (Helicoverpa armigera) and other lepidopterans.</li>\u0000<li>Oral secretion-induced ROS burst requires the PTI machinery, including BRI1-ASSOCIATED RECEPTOR KINASE1 (BAK1) and BOTRYTIS-INDUCED KINASE1 (BIK1). Oral secretion-induced ROS are primarily produced by respiratory burst oxidase homologue D (RBOHD) in the apoplast, and the double mutant, rbohdf, exhibits reduced resistance to lepidopterans.</li>\u0000<li>Insect biting rather than wounding induces the gene expressions of plant defense-associated respiratory burst and toxin catabolic processes, facilitating the breakdown of leaf glucosinolates into bioactive intermediates, like sulforaphane, thereby impeding insect herbivory.</li>\u0000<li>Our investigation demonstrates that Arabidopsis perceives insect OS in a BAK1-BIK1-dependent manner and employs RBOHD to produce ROS in the apoplast, thereby enhancing its insect resistance by accelerating glucosinolate hydrolysis.</li>\u0000</ul>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"30 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143569564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0