New CropsPub Date : 2024-12-01Epub Date: 2023-11-11DOI: 10.1016/j.ncrops.2023.11.001
Chaolei Liu , Jian Wang , Hongwei Lu , Yong Huang , Huijing Yan , Huan Liang , Chun Wang , Kejian Wang
{"title":"Engineering synthetic apomixis in different hybrid rice varieties using the Fix strategy","authors":"Chaolei Liu , Jian Wang , Hongwei Lu , Yong Huang , Huijing Yan , Huan Liang , Chun Wang , Kejian Wang","doi":"10.1016/j.ncrops.2023.11.001","DOIUrl":"10.1016/j.ncrops.2023.11.001","url":null,"abstract":"<div><p>Hybrid rice breeding has significantly increased the yield and stability of rice production. However, due to trait segregation in F2 progeny seeds, the F1 hybrid seeds must be renewed annually. Apomixis is a form of reproduction leading to clonal seeds, which has a revolutionary potential in fixing heterosis and realizing selfretention of hybrid rice seeds. Previously, we successfully engineered synthetic apomixis in rice by combining Mitosis instead of Meiosis (MiMe) with haploid induction (mutation of MATRILINEAL), a strategy known as Fix for Fixation of hybrids. However, only one hybrid rice variety has been tested for the Fix synthetic apomixis system. In this study, we expanded the application of the Fix strategy and achieved synthetic apomixis in multiple hybrid rice varieties. We observed significant variations in seed setting rate across diverse genetic backgrounds and witnessed a remarkable tenfold increase in clonal seed efficiency. Our findings will provide valuable insights into the application of the Fix strategy for synthetic apomixis in hybrid rice.</p></div>","PeriodicalId":100953,"journal":{"name":"New Crops","volume":"1 ","pages":"Article 100003"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949952623000031/pdfft?md5=10cf15f35955e01647704c68f7154311&pid=1-s2.0-S2949952623000031-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135669128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
New CropsPub Date : 2024-12-01Epub Date: 2024-06-02DOI: 10.1016/j.ncrops.2024.100030
Jiaxuan Sui, Huiyu Tian, Zhaojun Ding, Xiangpei Kong
{"title":"Crop designs: The ideal root architecture for future crop breeding","authors":"Jiaxuan Sui, Huiyu Tian, Zhaojun Ding, Xiangpei Kong","doi":"10.1016/j.ncrops.2024.100030","DOIUrl":"10.1016/j.ncrops.2024.100030","url":null,"abstract":"<div><p>Root system architecture, a crucial agronomic trait for sustainable crop production, is influenced by a variety of internal developmental signals and external environmental factors. In this review, we highlight recent advancements in understanding the molecular mechanisms behind root meristem maintenance, cell differentiation, lateral root growth, root hair development, and crown root formation. Additionally, we explore how abiotic stresses such as drought, salinity, nitrate deficiency, and aluminum toxicity impact root system architecture. We identify key target genes that regulate root system architecture, offering potential targets for genome editing in future crop improvement. Finally, we discuss the opportunities and challenges in the de novo design of root system architecture.</p></div>","PeriodicalId":100953,"journal":{"name":"New Crops","volume":"1 ","pages":"Article 100030"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949952624000207/pdfft?md5=086c47e179140628b09e0ebd89ca5280&pid=1-s2.0-S2949952624000207-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141277661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
New CropsPub Date : 2024-12-01Epub Date: 2024-03-30DOI: 10.1016/j.ncrops.2024.100021
Yueyuan Wang, Pan Li, Wan Sun, Tian Zhang
{"title":"Plant cell walls: Emerging targets of stomata engineering to improve photosynthesis and water use efficiency","authors":"Yueyuan Wang, Pan Li, Wan Sun, Tian Zhang","doi":"10.1016/j.ncrops.2024.100021","DOIUrl":"10.1016/j.ncrops.2024.100021","url":null,"abstract":"<div><p>Stomata are tiny pores on leaf surfaces essential for plant transpiration and photosynthesis. As gatekeepers that mediate gas exchange between plants and the atmosphere, stomata exert a major influence on global carbon and water cycles. The shape and function of stomata are physically constrained by stomatal walls. Compared to the extensively studied genetic mechanisms of stomatal development and guard cell signaling, recent progress is only beginning to uncover the role of plant cell walls in stomatal development and dynamics. In this review, we summarize the research on cell walls of the kidney-shaped stomata from dicots and the dumbbell-shaped stomata from grasses. As the dynamic response of grass stomata is closely linked to its anatomical features that are limited by cell walls, we discuss the potential of plant cell walls as crucial targets for crop engineering to enhance carbon assimilation and water use efficiency.</p></div>","PeriodicalId":100953,"journal":{"name":"New Crops","volume":"1 ","pages":"Article 100021"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949952624000116/pdfft?md5=3e214ffd4d9c15f7f0c94d71378886e7&pid=1-s2.0-S2949952624000116-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140404104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
New CropsPub Date : 2024-12-01Epub Date: 2024-02-05DOI: 10.1016/j.ncrops.2024.100015
Chongyang Ma , Xiaoyan Zhang , Xinyue Bao , Xiaohong Zhu
{"title":"In the symbiosome: Cross-kingdom dating under the moonlight","authors":"Chongyang Ma , Xiaoyan Zhang , Xinyue Bao , Xiaohong Zhu","doi":"10.1016/j.ncrops.2024.100015","DOIUrl":"10.1016/j.ncrops.2024.100015","url":null,"abstract":"<div><p>Throughout legume–rhizobium symbiosis, nitrogen fixation occurs within the symbiosome, a membrane-bound organelle-like structure found in nodule cells. The symbiosome represents a temporary organelle in which rhizobia-encoded nitrogenase catalyzes dinitrogen conversion to ammonia in an oxygen-regulated microenvironment. Investigating symbiosome biology will undoubtedly improve our understanding of nitrogen fixation mechanisms and highlight novel targets for improving nitrogen fixation efficiency. Recent research advancements have taken place on regulatory aspects of symbiosome generation and functions, but obtaining spatiotemporally resolved symbiosome proteome and metabolomes, as well as tracking and deciphering its intracellular communication, is challenging. As a symbiotic interface, the symbiosome membrane proteome is largely composed of plant-derived proteins, while the symbiosome space between the symbiosome membrane and bacteria consists of proteins and metabolites from the rhizobium and plant. In the unique microenvironment, symbiosome proteins likely perform multiple tasks via their moonlighting functions, accounting for the many unsolved questions associated with symbiotic nitrogen fixation. In this review, we outline the current knowledge regarding the composition and potential moonlighting functions of symbiosome proteins. We highlight our current understanding of emergent symbiosome properties closely tied to nitrogen fixation activity. Ultimately, we discuss the challenges and opportunities for discovering new paradigms in symbiosome biology using recently developed technologies.</p></div>","PeriodicalId":100953,"journal":{"name":"New Crops","volume":"1 ","pages":"Article 100015"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949952624000050/pdfft?md5=a165278179ea71d9734a2e7246eedc71&pid=1-s2.0-S2949952624000050-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139885997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
New CropsPub Date : 2024-12-01Epub Date: 2024-05-06DOI: 10.1016/j.ncrops.2024.100024
Limin Wang , Yanyan Wang , Pan Yin , Caifu Jiang , Ming Zhang
{"title":"ZmHAK17 encodes a Na+-selective transporter that promotes maize seed germination under salt conditions","authors":"Limin Wang , Yanyan Wang , Pan Yin , Caifu Jiang , Ming Zhang","doi":"10.1016/j.ncrops.2024.100024","DOIUrl":"10.1016/j.ncrops.2024.100024","url":null,"abstract":"<div><p>Elevated sodium ion (Na<sup>+</sup>) in saline farmlands adversely affect crops, notably by inhibiting seed germination. Given the importance of High-Affinity K<sup>+</sup> Transporter (HAK) family Na<sup>+</sup> transporters in plant salt tolerance and ZmHAK4 role in maize salt tolerance, our study focuses on characterizing HAK transporters related to ZmHAK4 in maize’s salt stress response. We found that ZmHAK17 is vital for promoting seed germination under saline conditions. Expressed mainly in the germinating embryo’s radicle, <em>ZmHAK17</em>, encodes a Na<sup>+</sup> transporter located in the plasma membrane. Increased <em>ZmHAK17</em> transcript levels under salt stress facilitate Na<sup>+</sup> efflux from the radicle, preventing Na<sup>+</sup> accumulation in the embryo and reducing salt stress effects on germination. Mutants lacking <em>ZmHAK17</em> exhibit salt-sensitive germination. This study highlights ZmHAK17 as a key transporter enhancing maize germination in saline conditions, deepening our understanding of HAK family Na<sup>+</sup> transporters’ role in salt tolerance and offering a new target gene for salt-tolerant maize breeding.</p></div>","PeriodicalId":100953,"journal":{"name":"New Crops","volume":"1 ","pages":"Article 100024"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949952624000141/pdfft?md5=34fee71255f81fe88034efc34f67d73b&pid=1-s2.0-S2949952624000141-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141035299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A necessary considering factor for crop resistance: Precise regulation and effective utilization of beneficial microorganisms","authors":"Chenxi Kou , Feiyang Song , Dandan Li, Hongyang Xu, Shuxin Zhang, Wei Yang, Wenchong Shi, Zheng Gao","doi":"10.1016/j.ncrops.2024.100023","DOIUrl":"10.1016/j.ncrops.2024.100023","url":null,"abstract":"<div><p>Under global climate change circumstances, there has been growing acknowledgment of the critical need to prevent and manage both biotic and abiotic stress in crops. Plants employ a variety of signaling molecules, such as jasmonic acid (JA), abscisic acid (ABA), and Ca<sup>2+</sup>, to endure stress. Additionally, they utilize reactive oxygen species (ROS) and detoxifiers while also harnessing the assistance of beneficial microorganisms, including <em>Bacillus, Pseudomonas</em>, <em>Streptomyces</em>, and others. These microorganisms play a pivotal role in aiding crops in stress management, albeit with certain limitations to their efficacy. This article offers a synthesis and discourse on how crops can selectively engage with beneficial microorganisms via their root systems, elucidating the contributions of these microorganisms to stress tolerance. Drawing upon current insights, we propose refined strategies for leveraging microorganisms to bolster crop stress resilience. By advancing our grasp of plant-microorganism interactions and judiciously selecting and employing beneficial microorganisms, we aim to enhance the dependability and efficacy of microbial products in enhancing crop stress tolerance. This knowledge ultimately equips agricultural practitioners with the information needed to make informed decisions and bolster crops in adapting to rapidly changing environmental conditions.</p></div>","PeriodicalId":100953,"journal":{"name":"New Crops","volume":"1 ","pages":"Article 100023"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S294995262400013X/pdfft?md5=95ff58f5f3db7604854c0bcc82271cde&pid=1-s2.0-S294995262400013X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140783161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
New CropsPub Date : 2024-05-18DOI: 10.1016/j.ncrops.2024.100027
Zilu Zhang , Qi Wang , Haiqiao Yan , Xiaoyan Cang , Wei Li , Jinyu He , Meixiang Zhang , Laiqing Lou , Ran Wang , Ming Chang
{"title":"Lighting-up Wars: Stories of Ca2+ Signaling in Plant Immunity","authors":"Zilu Zhang , Qi Wang , Haiqiao Yan , Xiaoyan Cang , Wei Li , Jinyu He , Meixiang Zhang , Laiqing Lou , Ran Wang , Ming Chang","doi":"10.1016/j.ncrops.2024.100027","DOIUrl":"10.1016/j.ncrops.2024.100027","url":null,"abstract":"<div><p>Calcium ions (Ca<sup>2+</sup>) serve as key messengers in plant immune reactions. A typical Ca<sup>2+</sup> signaling involves three steps: encoding specific Ca<sup>2+</sup> signatures by Ca<sup>2+</sup>-permeable channels, decoding Ca<sup>2+</sup> signals by Ca<sup>2+</sup> sensors, and downstream responses. This review focuses on plasma membrane-localized Ca<sup>2+</sup>-permeable channels and cytosolic Ca<sup>2+</sup> sensors, unraveling their roles in cytosolic Ca<sup>2+</sup> influx and immune signaling during pattern-triggered immunity, effector-triggered immunity, and autoimmunity. Several unresolved questions were highlighted, including the regulation of Ca<sup>2+</sup>-permeable channel activity for immune induction and the mechanism behind Ca<sup>2+</sup> influx-triggered hypersensitive response cell death. This concise overview provides insights into the complex interplay of Ca<sup>2+</sup> signaling in plant immunity, paving the way for future investigations on molecular plant-microbe interactions.</p></div>","PeriodicalId":100953,"journal":{"name":"New Crops","volume":"1 ","pages":"Article 100027"},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949952624000177/pdfft?md5=9db07903da1969d0331b5713a86b749e&pid=1-s2.0-S2949952624000177-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141139432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}