New Phytologist最新文献

{"title":"Host plant height explains the effect of nitrogen enrichment on arbuscular mycorrhizal fungal communities","authors":"Yikang Cheng,&nbsp;Gemma Rutten,&nbsp;Xiang Liu,&nbsp;Miaojun Ma,&nbsp;Zhiping Song,&nbsp;Nadia I. Maaroufi,&nbsp;Shurong Zhou","doi":"10.1111/nph.19140","DOIUrl":"https://doi.org/10.1111/nph.19140","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>Nitrogen (N) enrichment is widely known to affect the root-associated arbuscular mycorrhizal fungal (AMF) community in different ways, for example, via altering soil properties and/or shifting host plant functional structure. However, empirical knowledge of their relative importance is still lacking.</li>\u0000 \u0000 <li>Using a long-term N addition experiment, we measured the AMF community taxonomic and phylogenetic diversity at the single plant species (roots of 15 plant species) and plant community (mixed roots) levels. We also measured four functional traits of 35 common plant species along the N addition gradient.</li>\u0000 \u0000 <li>We found divergent responses of AMF diversity to N addition for host plants with different innate heights (i.e. plant natural height under unfertilized treatment). Furthermore, our data showed that species-specific responses of AMF diversity to N addition were negatively related to the change in maximum plant height. When scaling up to the community level, N addition affected AMF diversity mainly through increasing the maximum plant height, rather than altering soil properties.</li>\u0000 \u0000 <li>Our results highlight the importance of plant height in driving AMF community dynamics under N enrichment at both species and community levels, thus providing important implications for understanding the response of AMF diversity to anthropogenic N deposition.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"399-411"},"PeriodicalIF":9.4,"publicationDate":"2023-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5775044","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}

{"title":"PIF3 is phosphorylated by MAPK to modulate plant immunity","authors":"Yan Zhao,&nbsp;Xiaojuan Zheng,&nbsp;Xiaojuan Zhang,&nbsp;Wei Wang,&nbsp;Gaihong Cai,&nbsp;Guozhi Bi,&nbsp;She Chen,&nbsp;Chuanqing Sun,&nbsp;Jian-Min Zhou","doi":"10.1111/nph.19139","DOIUrl":"https://doi.org/10.1111/nph.19139","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>Surface-localized pattern recognition receptors perceive pathogen-associated molecular patterns (PAMPs) to activate pattern-triggered immunity (PTI). Activation of mitogen-activated protein kinases (MAPKs) represents a major PTI response.</li>\u0000 \u0000 <li>Here, we report that <i>Arabidopsis thaliana</i> PIF3 negatively regulates plant defense gene expression and resistance to <i>Pseudomonas syringae</i> DC3000. PAMPs trigger phosphorylation of PIF3. Further study reveals that PIF3 interacts with and is phosphorylated by MPK3/6.</li>\u0000 \u0000 <li>By mass spectrometry and site-directed mutagenesis, we identified the corresponding phosphorylation sites which fit for SP motif. We further show that a phospho-mimicking PIF3 variant (PIF3^6D/<i>pifq</i>) conferred increased susceptibility to <i>P</i>. <i>syringae</i> DC3000 and caused lower levels of defense gene expression in plants.</li>\u0000 \u0000 <li>Together, this study reveals that PIF3 is phosphorylated by MPK3/6 and phosphorylation of the SP motif residues is required for its negative regulation on plant immunity.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"372-381"},"PeriodicalIF":9.4,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6239078","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}

{"title":"Seasonal trends in leaf-level photosynthetic capacity and water use efficiency in a North American Eastern deciduous forest and their impact on canopy-scale gas exchange","authors":"Kenneth J. Davidson,&nbsp;Julien Lamour,&nbsp;Anna McPherran,&nbsp;Alistair Rogers,&nbsp;Shawn P. Serbin","doi":"10.1111/nph.19137","DOIUrl":"https://doi.org/10.1111/nph.19137","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>Vegetative transpiration (<i>E</i>) and photosynthetic carbon assimilation (<i>A</i>) are known to be seasonally dynamic, with changes in their ratio determining the marginal water use efficiency (WUE). Despite an understanding that stomata play a mechanistic role in regulating WUE, it is still unclear how stomatal and nonstomatal processes influence change in WUE over the course of the growing season. As a result, limited understanding of the primary physiological drivers of seasonal dynamics of canopy WUE remains one of the largest uncertainties in earth system model projections of carbon and water exchange in temperate deciduous forest ecosystems.</li>\u0000 \u0000 <li>We investigated seasonal patterns in leaf-level physiological, hydraulic, and anatomical properties, including the seasonal progress of the stomatal slope parameter (<i>g</i>₁; inversely proportional to WUE) and the maximum carboxylation rate (<i>V</i>_cmax).</li>\u0000 \u0000 <li><i>V</i>_cmax and <i>g</i>₁ were seasonally variable; however, their patterns were not temporally synchronized. <i>g</i>₁ generally showed an increasing trend until late in the season, while <i>V</i>_cmax peaked during the midsummer months. Seasonal progression of <i>V</i>_cmax was primarily driven by changes in leaf structural, and anatomical characteristics, while seasonal changes in <i>g</i>₁ were most strongly related to changes in <i>V</i>_cmax and leaf hydraulics.</li>\u0000 \u0000 <li>Using a seasonally variable <i>V</i>_cmax and <i>g</i>₁ to parameterize a canopy-scale gas exchange model increased seasonally aggregated <i>A</i> and <i>E</i> by 3% and 16%, respectively.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"138-156"},"PeriodicalIF":9.4,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5732716","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}

{"title":"Small genome size and variation in ploidy levels support the naturalization of vascular plants but constrain their invasive spread","authors":"Petr Py?ek,&nbsp;Magdalena Lu?anová,&nbsp;Wayne Dawson,&nbsp;Franz Essl,&nbsp;Holger Kreft,&nbsp;Ilia J. Leitch,&nbsp;Bernd Lenzner,&nbsp;Laura A. Meyerson,&nbsp;Jan Pergl,&nbsp;Mark van Kleunen,&nbsp;Patrick Weigelt,&nbsp;Marten Winter,&nbsp;Wen-Yong Guo","doi":"10.1111/nph.19135","DOIUrl":"https://doi.org/10.1111/nph.19135","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"239 6","pages":"2389-2403"},"PeriodicalIF":9.4,"publicationDate":"2023-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19135","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6207886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"GhRCD1 regulates cotton somatic embryogenesis by modulating the GhMYC3–GhMYB44–GhLBD18 transcriptional cascade","authors":"Jiachen Yuan,&nbsp;Xingxing Liu,&nbsp;Hang Zhao,&nbsp;Ye Wang,&nbsp;Xi Wei,&nbsp;Peng Wang,&nbsp;Jingjing Zhan,&nbsp;Lisen Liu,&nbsp;Fuguang Li,&nbsp;Xiaoyang Ge","doi":"10.1111/nph.19120","DOIUrl":"https://doi.org/10.1111/nph.19120","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>Plant somatic embryogenesis (SE) is a multifactorial developmental process where embryos that can develop into whole plants are produced from somatic cells rather than through the fusion of gametes. The molecular regulation of plant SE, which involves the fate transition of somatic cells into embryogenic cells, is intriguing yet remains elusive.</li>\u0000 \u0000 <li>We deciphered the molecular mechanisms by which GhRCD1 interacts with GhMYC3 to regulate cell fate transitions during SE in cotton. While silencing of <i>GhMYC3</i> had no discernible effect on SE, its overexpression accelerated callus formation, and proliferation.</li>\u0000 \u0000 <li>We identified two of GhMYC3 downstream SE regulators, <i>GhMYB44</i> and <i>GhLBD18</i>. <i>GhMYB44</i> overexpression was unconducive to callus growth but bolstered EC differentiation. However, <i>GhLBD18</i> can be triggered by GhMYC3 but inhibited by GhMYB44, which positively regulates callus growth. On top of the regulatory cascade, GhRCD1 antagonistically interacts with GhMYC3 to inhibit the transcriptional function of GhMYC3 on <i>GhMYB44</i> and <i>GhLBD18</i>, whereby a CRISPR-mediated <i>rcd1</i> mutation expedites cell fate transition, resembling the effects of <i>GhMYC3</i> overexpression. Furthermore, we showed that reactive oxygen species (ROS) are involved in SE regulation.</li>\u0000 \u0000 <li>Our findings elucidated that SE homeostasis is maintained by the tetrapartite module, GhRCD1–GhMYC3–GhMYB44–GhLBD18, which acts to modulate intracellular ROS in a temporal manner.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"207-223"},"PeriodicalIF":9.4,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5641094","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}

{"title":"Thermography captures the differential sensitivity of dryland functional types to changes in rainfall event timing and magnitude","authors":"Mostafa Javadian,&nbsp;Russell L. Scott,&nbsp;Joel A. Biederman,&nbsp;Fangyue Zhang,&nbsp;Joshua B. Fisher,&nbsp;Sasha C. Reed,&nbsp;Daniel L. Potts,&nbsp;Miguel L. Villarreal,&nbsp;Andrew F. Feldman,&nbsp;William K. Smith","doi":"10.1111/nph.19127","DOIUrl":"https://doi.org/10.1111/nph.19127","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>Drylands of the southwestern United States are rapidly warming, and rainfall is becoming less frequent and more intense, with major yet poorly understood implications for ecosystem structure and function. Thermography-based estimates of plant temperature can be integrated with air temperature to infer changes in plant physiology and response to climate change. However, very few studies have evaluated plant temperature dynamics at high spatiotemporal resolution in rainfall pulse-driven dryland ecosystems.</li>\u0000 \u0000 <li>We address this gap by incorporating high-frequency thermal imaging into a field-based precipitation manipulation experiment in a semi-arid grassland to investigate the impacts of rainfall temporal repackaging.</li>\u0000 \u0000 <li>All other factors held constant, we found that fewer/larger precipitation events led to cooler plant temperatures (1.4°C) compared to that of many/smaller precipitation events. Perennials, in particular, were 2.5°C cooler than annuals under the fewest/largest treatment.</li>\u0000 \u0000 <li>We show these patterns were driven by: increased and consistent soil moisture availability in the deeper soil layers in the fewest/largest treatment; and deeper roots of perennials providing access to deeper plant available water. Our findings highlight the potential for high spatiotemporal resolution thermography to quantify the differential sensitivity of plant functional groups to soil water availability. Detecting these sensitivities is vital to understanding the ecohydrological implications of hydroclimate change.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"114-126"},"PeriodicalIF":9.4,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6091655","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}

{"title":"ALMT-independent guard cell R-type anion currents","authors":"Justyna Ja?lan,&nbsp;Irene Marten,&nbsp;Liina Jakobson,&nbsp;Triinu Arjus,&nbsp;Rosalia Deeken,&nbsp;Cecilia Sarmiento,&nbsp;Alexis De Angeli,&nbsp;Mikael Brosché,&nbsp;Hannes Kollist,&nbsp;Rainer Hedrich","doi":"10.1111/nph.19124","DOIUrl":"https://doi.org/10.1111/nph.19124","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"239 6","pages":"2225-2234"},"PeriodicalIF":9.4,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6204132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Demystifying the Venus flytrap action potential","authors":"Rainer Hedrich,&nbsp;Ines Kreuzer","doi":"10.1111/nph.19113","DOIUrl":"https://doi.org/10.1111/nph.19113","url":null,"abstract":"<p>All plants are electrically excitable, but only few are known to fire a well-defined, all-or-nothing action potential (AP). The Venus flytrap <i>Dionaea muscipula</i> displays APs with an extraordinarily high firing frequency and speed, enabling the capture organ of this carnivorous plant to catch small animals as fast as flies. The number of APs triggered by the prey is counted and serves as the basis for decisions within the flytrap's hunting cycle. The archetypical Dionaea AP lasts 1 s and consists of five phases: Starting from the resting state, an initial cytosolic Ca²⁺ transient is followed by depolarization, repolarization and a transient hyperpolarization (overshoot) before the original membrane potential is finally recovered. When the flytrap matures and becomes excitable, a distinct set of ion channels, pumps and carriers is expressed, each mastering a distinct AP phase.</p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"239 6","pages":"2108-2112"},"PeriodicalIF":9.4,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6078084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Night-time warming in the field reduces nocturnal stomatal conductance and grain yield but does not alter daytime physiological responses","authors":"Lorna McAusland,&nbsp;Liana G. Acevedo-Siaca,&nbsp;R. Suzuky Pinto,&nbsp;Francisco Pinto,&nbsp;Gemma Molero,&nbsp;Jaime Garatuza-Payan,&nbsp;Matthew P. Reynolds,&nbsp;Erik H. Murchie,&nbsp;Enrico A. Yepez","doi":"10.1111/nph.19075","DOIUrl":"https://doi.org/10.1111/nph.19075","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"239 5","pages":"1622-1636"},"PeriodicalIF":9.4,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19075","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6078077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increasing amyloplast size in wheat endosperm through mutation of PARC6 affects starch granule morphology","authors":"Lara Esch,&nbsp;Qi Yang Ngai,&nbsp;J. Elaine Barclay,&nbsp;Rose McNelly,&nbsp;Sadiye Hayta,&nbsp;Mark A. Smedley,&nbsp;Alison M. Smith,&nbsp;David Seung","doi":"10.1111/nph.19118","DOIUrl":"https://doi.org/10.1111/nph.19118","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"224-241"},"PeriodicalIF":9.4,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5794172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}