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Underground communication:Long non-coding RNA signaling in the plant rhizosphere

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plant Communications 2024年第7期5卷 28-51页

作者： Muhammad Fahad Leeza Tariq Sajid Muhammad Liang Wu Hainan Institute Zhejiang UniversitySanyaHainan 572000China Zhejiang Provincial Key laboratory of Crop genetic resources College of Agriculture and BiotechnologyZhejiang UniversityHangzhouZhejiang 310058China National Key laboratory for Rice Biology Institute of BiotechnologyZhejiang UniversityHangzhou 310058China

Long non-coding RNAs(lncRNAs)have emerged as integral gene-expression regulators underlying plant growth,development,and *** adapt to the heterogeneous and dynamic rhizosphere,plants use interconnected regulatory mechanisms to optimally fine-tune gene-expression-governing interactions with soil biota,as well as nutrient acquisition and heavy metal ***,high-throughput sequencing has enabled the identification of plant lncRNAs responsive to rhizosphere biotic and abiotic ***,we examine lncRNA biogenesis,classification,and mode of action,highlighting the functions of lncRNAs in mediating plant adaptation to diverse rhizosphere *** then discuss studies that reveal the significance and target genes of lncRNAs during developmental plasticity and stress responses at the rhizobium interface.A comprehensive understanding of specific lncRNAs,their regulatory targets,and the intricacies of their functional interaction networks will provide crucial insights into how these transcriptomic switches fine-tune responses to shifting rhizosphere *** ahead,we foresee that single-cell dissection of cell-type-specific lncRNA regulatory dynamics will enhance our understanding of the precise developmental modulation mechanisms that enable plant rhizosphere *** future challenges through multi-omics and genetic approaches will more fully reveal the integral roles of lncRNAs in governing plant adaptation to the belowground environment.

关键词： biotic and abiotic cues heavy metals long non-coding RNAs nutrients phytoremediation rhizosphere microbiome

IbNIEL-mediated degradation of IbNAC087 regulates jasmonic acid-dependent salt and drought tolerance in sweet potato

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Journal of Integrative plant Biology 2024年第2期66卷 176-195页

作者： Xu Li Zhen Wang Sifan Sun Zhuoru Dai Jun Zhang Wenbin Wang Kui Peng Wenhao Geng Shuanghong Xia Qingchang Liu Hong Zhai Shaopei Gao Ning Zhao Feng Tian Huan Zhang Shaozhen He Key laboratory of Sweet Potato Biology and biotechnology Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis&Utilization and Joint Laboratory for International Cooperation in Crop Molecular BreedingMinistry of EducationCollege of Agronomy&BiotechnologyChina Agricultural UniversityBeijing 100193China Sanya Institute of China Agricultural University Sanya 572025China State Key laboratory of plant Physiology and Biochemistry National Maize Improvement CenterKey Laboratory of Biology and Genetic Improvement of MaizeBeijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China

Sweet potato(Ipomoea batatas[L.]Lam.)is a crucial staple and bioenergy *** abiotic stress tolerance holds significant importance in fully utilizing marginal *** processes regulate abiotic stress responses,yet the molecular regulatory mechanisms in sweet potato remain *** this study,a NAC(NAM,ATAF1/2,and CUC2)transcription factor,IbNAC087,was identified,which is commonly upregulated in salt-and drought-tolerant *** of IbNAC087 increased salt and drought tolerance by increasing jasmonic acid(JA)accumulation and activating reactive oxygen species(ROS)scavenging,whereas silencing this gene resulted in opposite ***-rich IbNAC087-OE(overexpression)plants exhibited more stomatal closure than wild-type(WT)and IbNAC087-Ri plants under NaCl,polyethylene glycol,and methyl jasmonate ***087 functions as a nuclear transcriptional activator and directly activates the expression of the key JA biosynthesisrelated genes lipoxygenase(IbLOX)and allene oxide synthase(IbAOS).Moreover,IbNAC087 physically interacted with a RING-type E3 ubiquitin ligase NAC087-INTERACTING E3 LIGASE(IbNIEL),negatively regulating salt and drought tolerance in sweet *** ubiquitinated IbNAC087 to promote 26S proteasome degradation,which weakened its activation on IbLOX and *** findings provide insights into the mechanism underlying the IbNIEL-IbNAC087 module regulation of JA-dependent salt and drought response in sweet potato and provide candidate genes for improving abiotic stress tolerance in crops.

关键词： abiotic tolerance IbNAC087 IbNIEL JA sweet potato

Doubled haploid technology and synthetic apomixis:Recent advances and applications in future crop breeding

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Molecular plant 2024年第7期17卷 1005-1018页

作者： Yanzhi Qu Alisdair R.Fernie Jie Liu Jianbing Yan National Key laboratory of Crop genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan laboratory Wuhan 430070China Department of Molecular Physiology Max-Planck-Institute of Molecular Plant Physiology14476 Potsdam-GolmGermany Center of plant Systems Biology and biotechnology 4000 PlovdivBulgaria azhouwan National laboratory Sanya 572024China

Doubled haploid(DH)technology and synthetic apomixis approaches can considerably shorten breeding cycles and enhance breeding *** with traditional breeding methods,DH technology offers the advantage of rapidly generating inbred lines,while synthetic apomixis can effectively fix hybrid *** this review,we focus on(i)recent advances in identifying and characterizing genes responsible for haploid induction(Hl),(ii)the molecular mechanisms of Hl,(ili)spontaneous haploid genome doubling,and(iv)crop synthetic *** also discuss the challenges and potential solutions for future crop breeding programs utilizing DH technology and synthetic ***,we provide our perspectives about how to integrate DH and synthetic apomixis for precision breeding and de novo domestication.

关键词： maize doubled haploid technology haploid induction synthetic apomixis precision breeding

OsEIL1 and OsEIL2,two master regulators of rice ethylene signaling,promote the expression of ROS scavenging genes to facilitate coleoptile elongation and seedling emergence from soil

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plant Communications 2024年第3期5卷 93-105页

作者： Jinzhu Qiao Ruidang Quan Juan Wang Yuxiang Li Dinglin Xiao Zihan Zhao Rongfeng Huang Hua Qin biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China National Key Facility of Crop Gene resources and genetic Improvement Beijing 100081China

Successful emergence from the soil is a prerequisite for survival of germinating seeds in their natural *** rice,coleoptile elongation facilitates seedling emergence and establishment,and ethylene plays an important role in this ***,the underlying regulatory mechanism remains largely ***,we report that ethylene promotes cell elongation and inhibits cell expansion in rice coleoptiles,result-ing in longer and thinner coleoptiles that facilitate seedlings emergence from the *** analysis showed that genes related to reactive oxygen species(ROS)generation are upregulated and genes involved in ROS scavenging are downregulated in the coleoptiles of ethylene-signaling *** investiga-tions showed that soil coverage promotes accumulation of ETHYLENE INSENSITIVE 3-LIKE 1(OsEIL1)and OsEIL2 in the upper region of the coleoptile,and both OsEIL1 and OsEIL2 can bind directly to the promoters of the GDP-mannose pyrophosphorylase(VTC1)gene OsVTC1-3 and the peroxidase(PRX)genes OsPRX37,OsPRX81,OsPRX82,and OsPRX88 to activate their *** leads to increased ascorbic acid content,greater peroxidase activity,and decreased ROS accumulation in the upper region of the *** of ROS accumulation promotes coleoptile growth and seedling emergence from *** deepen our understanding of the roles of ethylene and ROS in controlling coleoptile growth,and this information can be used by breeders to produce rice varieties suitable for direct seeding.

关键词： ethylene ROS coleoptile growth emergence rate rice

Fine mapping and cloning of the sterility gene Bra2Ms in nonheading Chinese cabbage(Brassica rapa ***)

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Journal of Integrative Agriculture 2024年第4期23卷 1195-1204页

作者： Liping Song Xia Li Liguang Tang Chuying Yu Bincai Wang Changbin Gao Yanfeng Xie Xueli Zhang Junliang Wang Chufa Lin Aihua Wang Wuhan Vegetable Research Institute Wuhan Academy of Agricultural SciencesWuhan 430345China biotechnology and genetic resources Institute Yunnan Academy of Agricultural SciencesKunming 650000China

The application of a male-sterile line is an ideal approach for hybrid seed production in non-heading Chinese cabbage(Brassica rapa ***).However,the molecular mechanisms underlying male sterility in *** are still largely *** previously obtained the natural male sterile line WS24-3 of non-heading Chinese cabbage and located the male sterile locus,Bra2Ms,on the A2 *** observations revealed that the male sterility of WS24-3 resulted from disruption of the meiosis process during pollen *** mapping of Bra2Ms delimited the locus within a physical distance of about 129 kb on the A2 chromosome of *** Bra039753 gene encodes a plant homeodomain(PHD)-finger protein and is considered a potential candidate gene for ***039753 was significantly downregulated in sterile line WS24-3 compared to the fertile line at the meiotic anther *** analysis of Bra039753 identified a 369 bp fragment insertion in the first exon in male sterile plants,which led to an amino acid insertion in the Bra039753 *** addition,the 369 bp fragment insertion was found to cosegregate with the male sterility *** study identified a novel locus related to male sterility in non-heading Chinese cabbage,and the molecular marker obtained in this study will be beneficial for the marker-assisted selection of excellent sterile lines in non-heading Chinese cabbage and other Brassica crops.

关键词： non-heading Chinese cabbage male sterility Bra2Ms fine mapping PHD-finger protein

Comprehensive integration of single-cell transcriptomic data illuminates the regulatory network architecture of plant cell fate specification

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plant Diversity 2024年第3期46卷 372-385页

作者： Shanni Cao Xue Zhao Zhuojin Li Ranran Yu Yuqi Li Xinkai Zhou Wenhao Yan Dijun Chen Chao He State Key laboratory of Pharmaceutical biotechnology School of Life SciencesNanjing UniversityNanjing 210023China National Key laboratory of Crop genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China

plant morphogenesis relies on precise gene expression programs at the proper time and position which is orchestrated by transcription factors(TFs)in intricate regulatory networks in a cell-type specific *** we introduced a comprehensive single-cell transcriptomic atlas of Arabidopsis *** atlas is the result of meticulous integration of 63 previously published scRNA-seq datasets,addressing batch effects and conserving biological *** integration spans a broad spectrum of tissues,including both below-and above-ground *** a rigorous approach for cell type annotation,we identified 47 distinct cell types or states,largely expanding our current view of plant cell *** systematically constructed cell-type specific gene regulatory networks and uncovered key regulators that act in a coordinated manner to control cell-type specific gene *** together,our study not only offers extensive plant cell atlas exploration that serves as a valuable resource,but also provides molecular insights into gene-regulatory programs that varies from different cell types.

关键词： Arabidopsis Single cell transcriptome Gene regulatory network Data integration plant cell atlas

A growth-regulating factor 7(GRF7)-mediated gene regulatory network promotes leaf growth and expansion in sugarcane

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The Crop Journal 2024年第2期12卷 422-431页

作者： Qiaoyu Wang Yihan Li Dadong Lin Xiaoxi Feng Yongjun Wang Tianyou Wang Hongyan Ding Jisen Zhang State Key Lab for Conservation and Utilization of Subtropical AgroBiological resources and Guangxi Key Lab for Saccharum Biology Guangxi UniversityNanning 530005GuangxiChina Center for Genomics and biotechnology/Fujian Provincial Key laboratory of Haixia Applied plant Systems Biology/Key laboratory of Saccharum Biology and genetic Breeding/National Engineering Research Center for Saccharum Fujian Agriculture and Forestry UniversityFuzhou 350002FujianChina

Knowledge of the function of growth-regulating factors(GRFs)in sugarcane(Saccharum officinarum and ***)growth and development could assist breeders in selecting desirable plant ***,limited information about GRFs is available in Saccharum due to their *** this study,22 GRFs were identified in the two species and their conserved domains,gene structures,chromosome location,and synteny were ***7 expression varied among tissues and responded to diurnal ***7-YFP was localized preferentially in the nucleus and appears to act as a transcriptional ***7 positively regulated the size and length of rice leaves,possibly by regulating cell size and plant *** seven potential transcription factors binding to the SsGRF7 promoter in ***,four showed positive expression patterns,and two showed negative expression patterns relative to SsGRF7.

关键词： Expression analysis Growth-regulating factor Leaf development Sugarcane Transcription factors

Implementation of the Acclimatization Process for Ginger plantlets (Zingiber officinale Roscoe)

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Open Journal of Applied Sciences 2024年第8期14卷 2236-2248页

作者： Florentin Danton Kango Gilles Habib Todjro Cacaï Serge Sètondji Houédjissin Jerome Anani Hounguè Jaures Riwan Uriel Kouke David Dègbé Allotchémè Corneille Ahanhanzo Central laboratory of plant biotechnology and plant Breeding Department of Genetic and Biotechnology Faculty of Science and Technology University of Abomey-Calavi Cotonou Benin

Ginger (Zingiber officinale Roscoe) is an important culinary and medicinal spice but is rarely cultivated due to the unavailability of seeds. Given the difficulties in adapting to plantlets produced in natural environments, it is important to analyze the survival conditions of ginger plantlets. For this reason, we varied the incubation temperature and humidity as well as the substrate during the weaning phase. Then, we varied the nutrients contained in the watering solution during the hardening phase. The statistical analysis showed that physical factors and substrates significantly influenced (p plantlet survival. Nutrient solutions significantly influenced the phylogenesis, rhizogenesis, and height growth of the plantlets. The suitable physical factors for good development of plantlets are a temperature of 26.54˚C and a humidity of 96.16%. The 1C2T2TC substrate (1 Compost + 2 Soil + 2 Coconut Peat) had a significant survival rate of approximately 92.5%. During hardening, the plantzym solution promoted good growth in terms of plantlet height (0.6 cm) and good development of roots (30 roots) and leaves (03 leaves). This work will make it possible to develop a technical seed production sheet for better development of ginger cultivation in Benin.

关键词： Acclimatization Zingiber officinale Weaning Nutrient Solutions Substrates

WRKY33 negatively regulates anthocyanin biosynthesis and cooperates with PHR1 to mediate acclimation to phosphate starvation

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plant Communications 2024年第5期5卷 134-147页

作者： Han Tao Fei Gao Linying Li Yuqing He Xueying Zhang Mengyu Wang Jia Wei Yao Zhao Chi Zhang Qiaomei Wang Gaojie Hong State Key laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang ProvinceInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou 310021China State Key laboratory of Subtropical Silviculture Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese MedicineZhejiang A&F UniversityHangzhou 311300China Department of Horticulture College of Agriculture and BiotechnologyZhejiang UniversityKey Laboratory of Horticultural Plant GrowthDevelopment and Quality ImprovementMinistry of AgricultureHangzhouZhejiangChina Institute of Sericulture and Tea Zhejiang Academy of Agricultural SciencesHangzhou 310000China

Anthocyanin accumulation is acknowledged as a phenotypic indicator of phosphate(Pi)***,negative regulators of this process and their molecular mechanisms remain largely *** this study,we demonstrate that WRKY33 acts as a negative regulator of phosphorus-status-dependent anthocyanin ***33 regulates the expression of the gene encoding dihydroﬂavonol 4-reductase(DFR),a rate-limiting enzyme in anthocyanin production,both directly and ***33 binds directly to the DFR promoter to repress its expression and also interferes with the MBW complex through interacting with PAP1 to indirectly inﬂuence DFR transcriptional ***�Pi conditions,PHR1 interacts with WRKY33,and the protein level of WRKY33 decreases;the repression of DFR expression by WRKY33 is thus attenuated,leading to anthocyanin accumulation in *** genetic and biochemical assays suggest that PHR1 is also involved in regulating factors that affect WRKY33 protein *** together,ourfindings reveal that Pi starvation represses WRKY33,a repressor of anthocyanin biosynthesis,tofinely tune anthocyanin ***‘‘double-negative logic’’regulation of phosphorus-status-dependent anthocyanin biosynthesis is required for the mainte-nance of plant metabolic homeostasis during acclimation to Pi starvation.

关键词： WRKY33 phosphate signaling PHR1 Arabidopsis thaliana anthocyanins