New Phytologist最新文献

{"title":"A time tree for the evolution of insect, vertebrate, wind, and water pollination in the angiosperms","authors":"Susanne S. Renner","doi":"10.1111/nph.19201","DOIUrl":"https://doi.org/10.1111/nph.19201","url":null,"abstract":"<p>There is much circumstantial evidence that flowering plants were diverse by the Lower Cretaceous and were pollinated by insects (Arber &amp; Parkin, <span>1907</span>; Crepet &amp; Friis, <span>1987</span>). Arguments supporting this come from extant and fossil flower morphology, fossilized traces of interactions, and the pollination modes of surviving early lineages. First, some extinct gymnosperms had bisporangiate cones (with both micro- and megasporangia) surrounded by bracts (Fig. 1), and many such cones show traces of having been chewed by mandibulate insects (Peris <i>et al</i>., <span>2017</span>). Fossils of flower-associated flies also provide evidence of the existence of strobilus–pollinator interactions from the Permian to the Jurassic (Ren, <span>1998</span>; Ren <i>et al</i>., <span>2009</span>; Khramov <i>et al.</i>, <span>2023</span>). Second, if flowers evolved from bisporangiate strobili, they were not well suited for wind pollination because simultaneous optimization for pollen export and pollen capture is structurally difficult. The angiosperms' defining enclosure of the megasporangium inside surrounding structures may also point to ancestral insect pollination, as argued by Arber &amp; Parkin (<span>1907</span>: 73), ‘In the case of the angiosperms such primitive entomophily was preserved and rendered permanent by a transference of the pollen-collecting mechanism from the ovule itself to the carpel or megasporophyll and by the closure of this organ.’ Third, all angiosperms, but no living gymnosperm, produce pollenkitt, an oily substance on the surface of pollen that serves as a glue to attach pollen to animal vectors (Hesse, <span>1980</span>). In wind-pollinated plants, pollenkitt abundance is secondarily reduced. Lastly, the oldest lineages of flowering plants that still survive today are pollinated by flies, moths, and beetles (Luo <i>et al</i>., <span>2018</span>).</p><p>While insect pollination thus undoubtedly played a decisive role in the evolution of flowers, a phylogenetically informed analysis of pollination by insects, vertebrates, wind, and water across a full modern phylogeny of plants has been lacking. This is what Stephens <i>et al</i>. now provide in an article published in this issue of <i>New Phytologist</i> (<span>2023</span>; 880–891). Using a time-calibrated phylogeny with 1201 species representing the major lineages of flowering plants, together with geographic occurrence data, Stephens <i>et al</i>. quantified the timing and environmental associations of pollination shifts. Where possible, they scored pollination at the species level, either from published fieldwork (<i>n</i> = 432) or from the pollinator syndrome approach (<i>n</i> = 728). Where no information was available for a particular species, taxa were scored at genus (<i>n</i> = 131) or family (<i>n</i> = 4) level. In some analyses, 180 taxa with missing or polymorphic data were excluded from the analyses.</p><p>All major angiosperm clades (","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 2","pages":"464-465"},"PeriodicalIF":9.4,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41081417","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":"Occurrence and conversion of progestogens and androgens are conserved in land plants","authors":"Glendis Shiko,&nbsp;Max-Jonas Paulmann,&nbsp;Felix Feistel,&nbsp;Maria Ntefidou,&nbsp;Vanessa Hermann-Ene,&nbsp;Walter Vetter,&nbsp;Benedikt Kost,&nbsp;Grit Kunert,&nbsp;Julie A. Z. Zedler,&nbsp;Michael Reichelt,&nbsp;Ralf Oelmüller,&nbsp;Jan Klein","doi":"10.1111/nph.19163","DOIUrl":"https://doi.org/10.1111/nph.19163","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"318-337"},"PeriodicalIF":9.4,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19163","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5770037","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":"Enzyme-based kinetic modelling of ASC–GSH cycle during tomato fruit development reveals the importance of reducing power and ROS availability","authors":"Guillaume Decros,&nbsp;Thomas Dussarrat,&nbsp;Pierre Baldet,&nbsp;Cédric Cassan,&nbsp;Cécile Cabasson,&nbsp;Martine Dieuaide-Noubhani,&nbsp;Alice Destailleur,&nbsp;Amélie Flandin,&nbsp;Sylvain Prigent,&nbsp;Kentaro Mori,&nbsp;Sophie Colombié,&nbsp;Joana Jorly,&nbsp;Yves Gibon,&nbsp;Bertrand Beauvoit,&nbsp;Pierre Pétriacq","doi":"10.1111/nph.19160","DOIUrl":"https://doi.org/10.1111/nph.19160","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"242-257"},"PeriodicalIF":9.4,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19160","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5743236","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":"Decadal soil warming decreased vascular plant above and belowground production in a subarctic grassland by inducing nitrogen limitation","authors":"Chao Fang,&nbsp;Niel Verbrigghe,&nbsp;Bjarni D. Sigurdsson,&nbsp;Ivika Ostonen,&nbsp;Niki I. W. Leblans,&nbsp;Sara Mara?ón-Jiménez,&nbsp;Lucia Fuchslueger,&nbsp;Páll Siguresson,&nbsp;Kathiravan Meeran,&nbsp;Miguel Portillo-Estrada,&nbsp;Erik Verbruggen,&nbsp;Andreas Richter,&nbsp;Jordi Sardans,&nbsp;Josep Pe?uelas,&nbsp;Michael Bahn,&nbsp;Sara Vicca,&nbsp;Ivan A. Janssens","doi":"10.1111/nph.19177","DOIUrl":"https://doi.org/10.1111/nph.19177","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>Below and aboveground vegetation dynamics are crucial in understanding how climate warming may affect terrestrial ecosystem carbon cycling. In contrast to aboveground biomass, the response of belowground biomass to long-term warming has been poorly studied.</li>\u0000 \u0000 <li>Here, we characterized the impacts of decadal geothermal warming at two levels (on average +3.3°C and +7.9°C) on below and aboveground plant biomass stocks and production in a subarctic grassland.</li>\u0000 \u0000 <li>Soil warming did not change standing root biomass and even decreased fine root production and reduced aboveground biomass and production. Decadal soil warming also did not significantly alter the root–shoot ratio. The linear stepwise regression model suggested that following 10 yr of soil warming, temperature was no longer the direct driver of these responses, but losses of soil N were. Soil N losses, due to warming-induced decreases in organic matter and water retention capacity, were identified as key driver of the decreased above and belowground production. The reduction in fine root production was accompanied by thinner roots with increased specific root area.</li>\u0000 \u0000 <li>These results indicate that after a decade of soil warming, plant productivity in the studied subarctic grassland was affected by soil warming mainly by the reduction in soil N.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 2","pages":"565-576"},"PeriodicalIF":9.4,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41081586","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":"Uncovering the secrets to vibrant flowers: the role of carotenoid esters and their interaction with plastoglobules in plant pigmentation","authors":"Jacinta L. Watkins","doi":"10.1111/nph.19185","DOIUrl":"https://doi.org/10.1111/nph.19185","url":null,"abstract":"<p>Carotenoids, once biosynthesised, participate in a range of processes within plants including serving as precursors for the biosynthesis of multiple hormones, acting as signalling molecules and apocarotenoid aroma compounds, as well as playing roles in the stabilisation of photosystems and acting as antioxidants. These functions contribute to a high turnover rate of carotenoids within leaves (Beisel <i>et al</i>., <span>2010</span>). Another facet of carotenoids is in attracting insects and animals to facilitate successful reproduction and seed dispersal due to their vibrant colours and presence in fruits and flowers. However, this process relies upon their stable storage in the plastids of non-photosynthetic tissue. The quantity and composition of carotenoids is highly species and variety specific, but generally, the total carotenoid content correlates to the colour intensity in these organs. The esterification of xanthophylls (oxygenated carotenoids) to fatty acids positively influences total carotenoid accumulation by enhancing their packaging into specialised structures within plastids, called plastoglobules. Esterification also likely protects xanthophylls from catabolism through steric hindrance of enzymes that catalyse carotenoid cleavage, such as the carotenoid cleavage dioxygenases and the 9-<i>cis</i>-epoxycarotenoid dioxygenases, although this remains to be demonstrated. Despite the positive influence on total carotenoid accumulation, we are only beginning to understand the molecular mechanisms involved in xanthophyll ester production.</p><p>Using a comprehensive set of experiments, Li <i>et al</i>. unravel the genetic basis of esterification in rapeseed flowers. Through a combination of map-based cloning, loss-of-function studies using CRISPR/Cas9 technology and genetic complementation, two homologous genes from the esterase/lipase/thioesterase (ELT) family of acyltransferases were identified that function redundantly to direct petal colour formation and are annotated as xanthophyll esterases. The authors used liquid chromatography coupled with UV/vis spectroscopy and high-resolution mass spectroscopy to identify individual xanthophyll ester species, an undertaking which is notoriously difficult (Mercadante <i>et al</i>., <span>2017</span>). Interestingly, in white petals of both a naturally occurring cultivar and the xanthophyll esterase double knockout line, <i>pcs</i>, not only are esterified xanthophylls absent, but total carotenoid content is greatly reduced, signifying that in addition to biosynthesis, the stable storage and protection of carotenoids from turnover is required to produce the vivid yellow petal phenotype. The authors further probed the metabolome and transcriptome of the xanthophyll esterase double mutant line <i>pcs</i> and discovered that in the white petals of the mutant, metabolic flux is redirected to lipid metabolism and storage. They also observed no change in the expression of carotenoid biosynthesis ge","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"7-9"},"PeriodicalIF":9.4,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6020381","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":"Reducing eggs on eggplant: a common naturally emitted plant volatile could replace insecticides in the ‘king of vegetables’","authors":"Kelsey J. R. P. Byers","doi":"10.1111/nph.19172","DOIUrl":"https://doi.org/10.1111/nph.19172","url":null,"abstract":"<p>The development of insecticidal chemicals (commonly termed pesticides) has revolutionized the process of cultivation in agriculture; yet, similarly to the development of antimicrobial resistance in pathogens, insects can rapidly develop resistance to these chemicals (Alyokhin &amp; Chen, <span>2017</span>). Pesticides can also negatively affect beneficial insects such as pollinators and natural enemies of herbivorous insects (Bourguet &amp; Guillemaud, <span>2016</span>). Extensive pesticide use also poses risks to farmers and growers who apply the pesticides, as well as consumers who eat the resulting produce (Del Prado-Lu, <span>2015</span>; Bourguet &amp; Guillemaud, <span>2016</span>). Additionally, pesticides are not always cheap, increasing the economic burden on farmers and consumers alike (Bourguet &amp; Guillemaud, <span>2016</span>). As a result, alternative strategies are needed to control major crop pests whose damage affects yield and crop quality. A key component of integrated pest management (IPM) is the identification of extant crop varieties carrying resistance phenotypes against pest insects (Stenberg, <span>2017</span>), in particular, the identification of varieties or lines that emit deterrent volatile organic compounds (VOCs), which can stop pest insects at the source by preventing physical contact, oviposition, and feeding on vulnerable crops. However, rather than killing the insects once a plant is infested, or in the early stages of infestation, why not just keep the insects from infesting in the first place? An exciting study by Ghosh <i>et al</i>., published in this issue of <i>New Phytologist</i> (<span>2023</span>, 1259–1274) identifies a variety of eggplant (aubergine/brinjal) (<i>Solanum melongena</i> L., Solanaceae) resistant to the eggplant/brinjal shoot and fruit borer (<i>Lucinodes orbonalis</i> Guenée, Lepidoptera: Pyralidae), which infests both the vegetative and fruit tissues of the plant (Fig. 1).</p><p>This eggplant variety, which originates in the eastern Himalaya region, shows nearly complete resistance to infestation by the adult moth of <i>L. orbonalis</i>, with a complete lack of infested fruits and shoots, and very limited presence of moth eggs on the leaves of the plant – the moth's usual oviposition site. The identification of a naturally resistant variety of eggplant is exciting news, as the pest moth is found world-wide and can cause the loss of 45–100% of marketable fruit (Reshma <i>et al</i>., <span>2019</span>). As a result of this heavy infestation and loss potential, eggplant receives some of the heaviest pesticide burdens of any cultivated species, with plants sprayed up to 20 times per month in some locations (Del Prado-Lu, <span>2015</span>). The presence of these pesticides affects not only the moths, but also potentially beneficial insects such as pollinators and parasitoid wasps. Eggplant is largely self-pollinated but benefits from pollination for seed set and fruit production (Pess","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 3","pages":"915-917"},"PeriodicalIF":9.4,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19172","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41087776","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":"Intronic microRNA-directed regulation of mitochondrial reactive oxygen species enhances plant stress tolerance in Arabidopsis","authors":"Wei-Bo Xu,&nbsp;Lei Zhao,&nbsp;Peng Liu,&nbsp;Qian-Huan Guo,&nbsp;Chang-Ai Wu,&nbsp;Guo-Dong Yang,&nbsp;Jin-Guang Huang,&nbsp;Shu-Xin Zhang,&nbsp;Xing-Qi Guo,&nbsp;Shi-Zhong Zhang,&nbsp;Cheng-Chao Zheng,&nbsp;Kang Yan","doi":"10.1111/nph.19168","DOIUrl":"https://doi.org/10.1111/nph.19168","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>MicroRNAs (miRNAs) play crucial roles in regulating plant development and stress responses. However, the functions and mechanism of intronic miRNAs in plants are poorly understood.</li>\u0000 \u0000 <li>This study reports a stress-responsive RNA splicing mechanism for intronic miR400 production, whereby miR400 modulates reactive oxygen species (ROS) accumulation and improves plant tolerance by downregulating its target expression.</li>\u0000 \u0000 <li>To monitor the intron splicing events, we used an intronic miR400 splicing-dependent luciferase transgenic line. Luciferase activity was observed to decrease after high cadmium concentration treatment due to the retention of the miR400-containing intron, which inhibited the production of mature miR400. Furthermore, we demonstrated that under Cd treatments, <i>Pentatricopeptide Repeat Protein 1</i> (<i>PPR1</i>), the target of miR400, acts as a positive regulator by inducing ROS accumulation. <i>Ppr1</i> mutation affected the Complex III activity in the electron transport chain and RNA editing of the mitochondrial gene <i>ccmB</i>.</li>\u0000 \u0000 <li>This study illustrates intron splicing as a key step in intronic miR400 production and highlights the function of intronic miRNAs as a ‘signal transducer’ in enhancing plant stress tolerance.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 2","pages":"710-726"},"PeriodicalIF":9.4,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41081585","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":"Argonaute7 (AGO7) optimizes arbuscular mycorrhizal fungal associations and enhances competitive growth in Nicotiana attenuata","authors":"Maitree Pradhan,&nbsp;Ian T. Baldwin,&nbsp;Shree P. Pandey","doi":"10.1111/nph.19155","DOIUrl":"https://doi.org/10.1111/nph.19155","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 1","pages":"382-398"},"PeriodicalIF":9.4,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5926165","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":"A rapid method for assembly of single chromosome and identification of sex determination region based on single-chromosome sequencing","authors":"Ning Li,&nbsp;Jian Zhou,&nbsp;Wanqing Zhang,&nbsp;Wenjia Liu,&nbsp;Bingxin Wang,&nbsp;Hongbing She,&nbsp;Ameer Ahmed Mirbahar,&nbsp;Shufen Li,&nbsp;Yulan Zhang,&nbsp;Wujun Gao,&nbsp;Wei Qian,&nbsp;Chuanliang Deng","doi":"10.1111/nph.19176","DOIUrl":"https://doi.org/10.1111/nph.19176","url":null,"abstract":"The sex-determining-region (SDR) may offer the best prospects for studying sex-determining gene, recombination suppression, and chromosome heteromorphism. However, current progress of SDR identification and cloning showed following shortcomings: large near-isogenic lines need to be constructed, and a relatively large population is needed; the cost of whole-genome sequencing and assembly is high. Herein, the X/Y chromosomes of Spinacia oleracea L. subsp. turkestanica were successfully microdissected and assembled using single-chromosome sequencing. The assembly length of X and Y chromosome is c. 192.1 and 195.2 Mb, respectively. Three large inversions existed between X and Y chromosome. The SDR size of X and Y chromosome is c. 13.2 and 24.1 Mb, respectively. MSY region and six male-biased genes were identified. A Y-chromosome-specific marker in SDR was constructed and used to verify the chromosome assembly quality at cytological level via fluorescence in situ hybridization. Meanwhile, it was observed that the SDR located on long arm of Y chromosome and near the centromere. Overall, a technical system was successfully established for rapid cloning the SDR and it is also applicable to rapid assembly of specific chromosome in other plants. Furthermore, this study laid a foundation for studying the molecular mechanism of sex chromosome evolution in spinach.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 2","pages":"892-903"},"PeriodicalIF":9.4,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41081384","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":"NCR343 is required to maintain the viability of differentiated bacteroids in nodule cells in Medicago truncatula","authors":"Fengzhan Gao,&nbsp;Jian Yang,&nbsp;Niu Zhai,&nbsp;Chao Zhang,&nbsp;Xinru Ren,&nbsp;Yating Zeng,&nbsp;Yuhui Chen,&nbsp;Rujin Chen,&nbsp;Huairong Pan","doi":"10.1111/nph.19180","DOIUrl":"https://doi.org/10.1111/nph.19180","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>Bacteroid (name for rhizobia inside nodule cells) differentiation is a prerequisite for successful nitrogen-fixing symbiosis. In certain legumes, under the regulation of host proteins, for example, a large group of NCR (nodule cysteine rich) peptides, bacteroids undergo irreversible terminal differentiation. This process causes them to lose the ability to propagate inside nodule cells while boosting their competency for nitrogen fixation. How host cells maintain the viability of differentiated bacteroids while maximizing their nitrogen-reducing activities remains elusive.</li>\u0000 \u0000 <li>Here, through mutant screen, map-based cloning, and genetic complementation, we find that <i>NCR343</i> is required for the viability of differentiated bacteroids. In <i>Medicago truncatula debino1</i> mutant, differentiated bacteroids decay prematurely, and <i>NCR343</i> is proved to be the casual gene for <i>debino1</i>.</li>\u0000 \u0000 <li><i>NCR343</i> is mainly expressed in the nodule fixation zone, where bacteroids are differentiated. In nodule cells, mature NCR343 peptide is secreted into the symbiosomes. RNA-Seq assay shows that many stress-responsive genes are significantly induced in <i>debino1</i> bacteroids. Additionally, a group of stress response-related rhizobium proteins are identified as putative interacting partners of NCR343.</li>\u0000 \u0000 <li>In summary, our findings demonstrate that beyond promoting bacteroid differentiation, NCR peptides are also required in maintaining the viability of differentiated bacteroids.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":"240 2","pages":"815-829"},"PeriodicalIF":9.4,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41081843","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}