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Profiles of the Headspace Volatile Organic and Essential Oil Compounds from the Tunisian Cardaria draba (L.) Desv. and Its Leaf and Stem Epidermal Micromorphology

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 725-744页

作者： Wissal Saadellaoui Samiha Kahlaoui Kheiria Hcini Abir Haddada Noomene Sleimi Roberta Ascrizzi Guido Flamini Fethia Harzallah-Skhiri Sondes Stambouli-Essassi Laboratory of biodiversity Biotechnology and Climate Change(LR11-ES09)Faculty of Sciences of TunisUniversity of Tunis El ManarTunis1060Tunisia Laboratory RME-resources Materials and EcosystemsFaculty of Sciences of BizerteUniversity of CarthageJarzounaBizerte7021Tunisia Dipartimento di Farmacia Universitàdi PisaVia Bonanno 33Pisa56126Italy Laboratory of bioresources:Integrative biology and valorization(lr14-ES06) High Institute of Biotechnology of MonastirUniversity of MonastirMonastir5000Tunisia

In this work, we investigated aroma volatiles emanated by dry roots, stems, leaves, flowers, and fruits of Cardariadraba (L.) Desv. growing wild in Tunisia and its aerial part essential oils (EOs) composition. A total of 37 volatileorganic compounds (96.7%–98.9%) were identified;4 esters, 4 alcohols, 7 hydrocarbons, 12 aldehydes, 5 ketones,1 lactone, 1 organosulfur compound, 2 organonitrogen compounds, and 1 acid. The hydrocarbons form the maingroup, representing 49.5%–84.6% of the total detected volatiles. The main constituent was 2,2,4,6,6-pentamethylheptane(44.5%–76.2%) reaching the highest relative percentages. Forty-two compounds were determined in thetwo fractions of EOs, representing 98.8% and 97.2% of the total oil composition, respectively. The principal componentswere hexadecanoic acid (34.6%), 6-methyl-5-hepten-2-one (18.3%), decanal (15.0%), 6,10,14-trimethyl-2-pentadecanone (13.2%), and n-pentacosane (13%). Micromorphological details of the leaf and stem epidermisusing light microscopy revealed polygonal cells with sinuous walls in the adaxial and abaxial leaf surfaces andnearly rectangular and long ones with linear and thick walls for the stem epidermis. The stomata complexes wereanisocytic in the leaf epidermis and mainly anisocytic and rarely paracytic in the stem epidermis. Non-glandulartrichomes were unbranched and long with an acute apex or short with a convex apex. The glandular ones wereidentified for the first time in this species. They were short-stalked with a large secretory head. The highest stomatalindex (17.02%) was recorded in the abaxial leaf surface. The identification of headspace volatiles and essentialoil compounds can be used to characterize this species, and the various epidermis micromorphologicalfeatures are very useful for biosystematics taxonomic studies within Brassicaceae.

关键词： Cardaria draba aroma profile essential oils epidermis trichomes

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The OsBZR1-OsSPX1/2 module fine-tunes the growth-immunity trade-off in adaptation to phosphate availability in rice

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Molecular Plant 2024年第2期17卷 258-276页

作者： Yuqing He Yao Zhao Jitao Hu Lanlan Wang Linying Li Xueying Zhang Zhongjing Zhou Lili Chen Hua Wangl Jiaoyu 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 MOA of China and Zhejiang ProvinceInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou 310021P.R.China Key Laboratory of Traceability for Agricultural Genetically Modified Organisms Ministry of Agriculture and Rural AffairsHangzhou 310021P.R.China College of Life Sciences Zhejiang Sci-Tech UniversityHangzhou 310018P.R.China State Key Laboratory for Managing biotic and Chemical Threats to the Qualty and Safety of Agro-products Zhejang Academy of Agricultural SciencesHangzhou 310021P.R.China State Key Laboratory for Managing biotic and Chemical Threats to the Quality and Safety of Agro-Products Key Labory of Biotechnology in Plant Protection of MOA of China and Zhejiang ProvinceInstitute of Plant Protection and MicrobiologyZhejiang Academy of Agricultural SciencesHangzhou 310021P.R.China

The growth-promoting hormones brassinosteroids(BRs)and their key signaling component BZR1 play a vital role in balancing normal growth and defense ***,we discovered that BRs and OsBZR1 up-regulated sakuranetin accumulation and conferred basal defense against Magnaporthe oryzae infection under normal *** shortages,including phosphate(Pi)deficiency,potentially disrupt this growth-defense ***1 and OsSPX2 have been reported to sense Pi concentration and interact with the Pi signal mediator OsPHR2,thus regulating Pi starvation *** this study,we discovered that OsSPX1/2 interacts with OsBZR1 in both Pi-sufficient and Pi-deficient conditions,inhibit-ing BR-responsive *** Pi is sufficient,OsSPX1/2 is captured by OsPHR2,enabling most of OsBzR1 to promote plant growth and maintain basal *** response to Pi starvation,more OsSPX1/2 is released from OsPHR2 to inhibit OsBZR1 activity,resulting in slower ***,our study reveals that the OsBZR1-SPX1/2 module balances the plant growth-immunity trade-off in *** Y.,Zhao Y.,Hu J.,Wang L.,Li L.,Zhang X.,Zhou Z.,Chen L.,Wang H.,Wang J.,and Hong G.(2024).The OsBZR1-OsSPX1/2 module fine-tunes the growth-immunity trade-off in adaptation to phosphate availability in esponse to Pi availability.

关键词： immunity maintain adaptation

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Extracts from Marine Macroalgae and Opuntia ficus-indica Cladodes Enhance Halotolerance and Enzymatic Potential of Diazotrophic Rhizobacteria and Their Impact on Wheat Germination Under Salt Stress

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Pedosphere 2018年第2期28卷 241-254页

作者： Abdelwahab RAI Ameur CHERIF Cristina CRUZ Elhafid NABTI Département de Microbiologie Faculté des Sciences de la Nature et de la Vie Université Ferhat Abbas Sdtif-1 19000 (Algdrie) Universitg de Béjaia FSNV Laboratoire de Maitrise des Energies Renouvelables (LMER) Equipe de Biomasse et Environnement Targa Ouzemmour Béaia 06000 (Algérie) lr biotechnology and bio-geo resources valorization Higher Institute for Biotechnology University of Manouba Sidi Thabet Biotechpole 2020 Sidi Thabet Ariana 2080 (Tunisia) cE3c-Centre for Ecology Evolution and Environmental Changes Campo Grande Bloco C-2 Piso 5 Sala 03 Lisboa 1749-016 CPor- tugal)

Soil salinity, which affects more than 6% of the earth’s land surface and more than 20% of its irrigated areas, is a major threat to agriculture. Diazotrophic bacteria are among the functional groups of soil microbiota that are threatened by this abiotic stress, as their activity is mostly inhibited by salt stress. Seventy bacterial strains with distinct characteristics were isolated from soils by using N-free Jensen’s selective medium. Based on their ability to produce metabolites of agricultural interest, four strains were selected and identified as Flavobacterium johnsoniae, Pseudomonas putida, Achromobacter xylosoxidans, and Azotobacter chroococcum. The selected strains were grown at different NaCl concentrations (0–600 mmol L^(-1) in N-free broth and 0–2 000 mmol L^(-1) in Luria-Bertani medium) in the presence and absence of glycine betaine (GB), aqueous and hydro-alcoholic extracts from marine macroalgae, Ulva lactuca and Enteromorpha intestinalis, and Opuntia ficus-indica cladodes. The selected bacterial strains, GB, and the aforementioned extracts were tested for their ability to promote the germination of wheat (Triticum durum) seeds at 0–300 mmol L^(-1) NaCl. Compared with the results obtained with the synthetic osmoprotectant GB, the extracts from O. ficus-indica, U. lactuca, and E. intestinalis significantly promoted bacterial growth and seed germination under salt stress.

关键词： glycine betaine Ulva lactuca Enteromorpha intestinalis plant growth-promoting rhizobacteria (PGPR) seed germi-nation Triticum durum

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Synergistic fluorescent hydrogel actuators with selective spatial shape/color-changing behaviors via interfacial supramolecular assembly

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SmartMat 2024年第2期5卷 93-102页

作者： Wei Lu Ruijia Wang Muqing Si Yi Zhang Shuangshuang Wu Ning Zhu Wenqin Wang Tao Chen Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboChina School of Chemical Sciences University of Chinese Academy of SciencesBeijingChina Faculty of Materials Science and Chemical Engineering Ningbo UniversityNingboChina College of biotechnology and Pharmaceutical Engineering Nanjing Tech UniversityNanjingJiangsuChina

biomimetic intelligent polymeric hydrogel actuators with cooperative fluorescence-color switchable behaviors are expected to find great potential applications in soft robotics,visual detection/display,and camouflage ***,it remains challenging to realize the spatial manipulation of synergistic shape/color-changing ***,we report an interfacial supramolecular assembly(ISA)approach that enables the construction of robust fluorescent polymeric hydrogel actuators with spatially anisotropic *** the basis of this ISA approach,diverse 2D/3D soft fluorescent hydrogel actuators,including chameleon-and octopi-shaped ones with spatially anisotropic structures,were facilely assembled from two different fluorescent hydrogel building blocks sharing the same physically cross-linked agar *** control over synergistic shape/color-changing behaviors was then realized in one single anisotropic hydrogel *** proposed ISA approach is universal and expected to open promising avenues for developing powerful bioinspired intelligent soft actuators/robotics with selective spatial shape/color-changing behaviors.

关键词： actuator anisotropic structure interfacial supramolecular assembly multicolor fluorescent hydrogels self-gluing

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Patterns of genetic and morphometric diversity in the marbled crab(Pachygrapsus marmoratus, Brachyura, Grapsidae)populations across the Tunisian coast

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Acta Oceanologica Sinica 2015年第6期34卷 49-58页

作者： Temim Deli Hiba Bahles Khaled Said Noureddine Chatti Laboratory of Genetics Biodiversity and Enhancement of Bioresources (LR11ES41) University of Monastir Higher Institute of Biotechnology of Monastir

The present study reports on population structure analysis of the marbled crab Pachygrapsus marmoratus （Fabricius, 1787） from the Tunisian coast, an appropriate location to study biogeographical processes because of the presence of a well-known discontinuous biogeographic area （the Siculo-Tunisian Strait）. Patterns of morphological and genetic variation of this highly dispersive and continuously distributed decapod species were assessed among its geographically close populations which cover almost the entire Tunisian coastline. A total of 386 specimens from nine sites were collected and examined for morphometric variability at 14 morphometric traits. The results of multivariate analyses of linear morphometric traits showed the existence of sexual dimorphism in this species by PERMANOVA （Permutational multivariate analysis of variance）. In addition, both CDA （Canonical discriminant analysis） and NPMANOVA （Non parametric MANOVA test） analyses revealed statistically significant differences among the studied locations for both sexes. Overall, the outcome of CDA analysis showed that over 87% of individuals could be assigned correctly to three regional groups in both sexes （North, Center and South）. Specifically, SIMPER （Similarity Percentages） analysis showed that carapace length, carapace width and merus length were major contributors to the morphometric separation between populations. The pattern of phenotypic variation suggested by morphometric analyses was found to be highly discordant with that suggested by the analysis of a mitochondrial marker （cytochrome oxidase I, COI）. Indeed, the results inferred from restriction fragment analysis of the COI in 180 crabs, suggested high genetic homogeneity. Very low levels of haplotype diversity （h） were found in almost all the studied populations, associated with non significant genetic distances for nearly all population comparisons. Explanations to these morphometric and mtDNA patterns as well as the discrepancy between the

关键词： Pachygrapsus marmoratus Tunisian coast multivariate analysis morphological differentiation COI genetic homogeneity

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Genetic and morphological divergence in the purple sea urchin Paracentrotus lividus(Echinodermata,Echinoidea)across the African Mediterranean coast

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Acta Oceanologica Sinica 2017年第12期36卷 52-66页

作者： Temim Deli Mohamed Hbib Ben Attia Rym Zitari-Chatti Khaled Said Noureddine Chatti Laboratory of Genetics Biodiversity and Enhancement of Bioresources(LR11ES41)University of MonastirHigher Institute of Biotechnology of MonastirMonastir 5000Tunisia

The present investigation focuses on population structure analysis of the purple sea urchin Paracentrotus lividus across the African Mediterranean coast, with the main aim of assessing the influence of the Siculo-Tunisian Strait on gene flow disruption in this highly dispersive echinoid species. For this purpose, patterns of morphological and genetic variation were assessed among its populations from the western and eastern Mediterranean coasts. A total of 302 specimens from seven Tunisian sites were collected and examined for morphometric variability at twelve morphometric traits. Concordant results, inferred from CDA（canonical discriminant analyses）, pairwise NPMANOVA（non parametric multivariate analysis of variance） comparisons and MDS（multidimensional scaling） plot, unveiled significant inter-population differences in the measured traits among the studied populations. Furthermore, the combined use of the one way ANOSIM（analysis of similarities） and the Discriminant/Hotelling analysis allowed unravelling two morphologically differentiated groups assigned to both western and eastern Mediterranean basins. The SIMPER（similarity percentages） routine analysis showed that total dry weight, test diameter and spine length were major contributors to the morphometric separation between locations and between groups. Pattern of phenotypic divergence discerned in P. lividus across the Siculo-Tunisian Strait is interestingly in congruence with that inferred from the genetic investigation of the purple sea urchin populations from the same region based on the analysis of the mt DNA COI（cytochrome oxidase I） gene in 314 specimens from nineteen locations covering a wider geographic transect, streching westward to the Algerian coast and eastward to the Libyan littoral. The specific haplotypic composition characterizing each Mediterranean basin,as inferred from the minimum spanning network, confirmed the geographic partioning of genetic variation, as revealed by F-statistics and AMO

关键词： Paracentrotus lividus Siculo-Tunisian Strait morphological differentiation COI genetic divergence

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Excellent effects and possible mechanisms of action of a new antibody–drug conjugate against EGFR-positive triple-negative breast cancer

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Military Medical Research 2022年第4期9卷 419-431页

作者： Dan-Dan Zhou Wei-Qi Bai Xiao-Tian Zhai Li-Ping Sun Yong-Su Zhen Zhuo-Rong Li Qing-Fang Miao NHC Key Laboratory of biotechnology of Antibiotics Institute of Medicinal BiotechnologyChinese Academy of Medical Sciences and Peking Union Medical CollegeNo.1 Tiantan XilBeijing 100050China Department of Organic Chemistry Institute of Medicinal BiotechnologyChinese Academy of Medical Sciences and Peking Union Medical CollegeNo.1 Tiantan XiliBeijing 100050China

Background:Triple-negative breast cancer(TNBC)is the most aggressive subtype and occurs in approximately 15%–20%of diagnosed breast *** is characterized by its highly metastatic and recurrent features,as well as a lack of specific targets and targeted *** growth factor receptor(EGFR)is highly expressed in a variety of tumors,especially in ***004-VC-MMAE is a new EGFR-targeting antibody–drug conjugate produced by our *** study aimed to evaluate its antitumor activities against EGFR-positive TNBC and further studied its possible mechanism of antitumor ***:lr004-VC-MMAE was prepared by coupling a cytotoxic payload(MMAE)to an anti-EGFR antibody(lr004)via a linker,and the drug-to-antibody ratio(DAR)was analyzed by *** gene expression of EGFR in a series of breast cancer cell lines was assessed using a publicly available microarray dataset(GSE41313)and Western ***-MB-468 and MDA-MB-231 cells were treated with lr004-VC-MMAE(0,0.0066,0.066,0.66,6.6 nmol/L),and the inhibitory effects of lr004-VC-MMAE on cell proliferation were examined by CCK-8 and colony *** migration and invasion capacity of MDA-MB-468 and MDA-MB-231 cells were tested at different lr004-VCMMAE concentrations(2.5 and 5 nmol/L)with wound healing and Transwell invasion *** cytometric analysis and tumorsphere-forming assays were used to detect the killing effects of lr004-VC-MMAE on cancer stem cells(MDA-MB-468 and MDA-MB-231 cells).The mouse xenograft models were also used to evaluate the antitumor efficacy of lr004-VC-MMAE in ***,BALB/c nude mice were subcutaneously inoculated with MDA-MB-468 or MDAMB-231 *** they were randomly divided into 4 groups(n=6 per group)and treated with PBS,naked lr004(10 mg/kg),lr004-VC-MMAE(10 mg/kg),or doxorubicin,*** sizes and the body weights of mice were measured every 4 *** effects of lr004-VC-MMAE on apoptosis and cell cycle distribution were analyzed

关键词： Triple-negative breast cancer Epidermal growth factor receptor Antibody–drug conjugate Targeted therapy Antitumor effect

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Effectiveness of plant growth-promoting rhizobacterium Pantoea sp. BRM17 in enhancing canola growth on phosphogypsum-amended soil

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Pedosphere 2020年第4期30卷 570-576页

作者： Houda TRIFI Issam BENSALEM Naima KOLSI BENZINA Amine FOURATI Maria Clara COSTA Wafa ACHOUAK Haitham SGHAIER Mouldi SAIDI Laboratory of biotechnology and Nuclear Technology(lr16CNSTN01) National Center for Nuclear Sciences and Technology(CNSTN)Sidi Thabet Technopark 2020(Tunisia) Faculty of Sciences of Bizerte Carthage UniversityJarzouna 7021(Tunisia) Soil Sciences and Environment Laboratory National Institute of Agronomy of TunisiaTunis Mahrajene 1082(Tunisia) Tunisian Chemical Group Route de Gabes Km 3.5Sfax 3018(Tunisia) Centro de Ciencias do Mar Universidade do AlgarveCampus de GambelasFaro 8005-139(Portugal) Laboratory of Microbial Ecology of the Rhizosphere and Extreme Environment CEA CadaracheSaint Paul Lez Durance 13108(France) Laboratory of Energy and Matter for Development of Nuclear Sciences(lrJ6CNSTN02) National Center for Nuclear Sciences and Technology(CNSTN)Sidi Thabet Technopark 2020(Tunisia) Laboratory of biotechnology and bio-georesources valorization(lr1IES31) National Center for Nuclear Sciences and Technology(CNSTN)Sidi Thabet Technopark 2020(Tunisia)

Dear Editor,Phosphogypsum(PG)is the main by-product generated during phosphoric acid production from mineral *** contains mainly calcium sulfate dehydrate(CaSO4:2H2O),phosphate,fuoride,heavy metals,and radionuclides(Elloumi et al.,2015).Around 170×10^6 t PG is produced annually worldwide,although PG management is an environ-mental concern in several countries.

关键词： annually soil metals

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Interplay between ABA and GA Modulates the Timing of Asymmetric Cell Divisions in the Arabidopsis Root Ground Tissue

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Molecular Plant 2016年第6期9卷 870-884页

作者： Shin Ae Lee Sejeong Jang Eun Kyung Yoon Jung-Ok Heo Kwang Suk Chang Ji Won Choi Souvik Dhar Gyuree Kim Jeong-Eun Choe Jae Bok Heo Chian Kwon Jae-Heung Ko Yong-Sic Hwang Jun Lim Department of Systems biotechnology Konkuk University Seour 05029 Korea Department of Molecular biotechnology Dong-A University Busan 49201 Korea Department of Molecular biology Dankook University Yongin 16890 Korea Department of Plant and Environmental New resources Kyung Hee University Yongin 17104 Korea These authors contributed equally to this article. Present address: The Sainsbury Laboratory University of Cambridge Cambridge CB2 1LR United Kingdom Present address: Department of Life Science Research Institute for Natural Sciences Hanyang University Seoul 04763 Korea

In multicellular organisms, controlling the timing and extent of asymmetric cell divisions （ACDs） is crucial for correct patterning. During post-embryonic root development in Arabidopsis thaliana, ground tissue （GT） maturation involves an additional ACD of the endodermis, which generates two different tissues： the endo- dermis （inner） and the middle cortex （outer）. It has been reported that the abscisic acid （ABA） and gibberellin （GA） pathways are involved in middle cortex （MC） formation. However, the molecular mechanisms under- lying the interaction between ABA and GA during GT maturation remain largely unknown. Through transcriptome analyses, we identified a previously uncharacterized C2H2-type zinc finger gene, whose expression is regulated by GA and ABA, thus named GAZ （GA- AND ABA-RESPONSIVE ZINC FINGER）. Seedlings ectopically overexpressing GAZ （GAZ-OX） were sensitive to ABA and GA during MC formation, whereas GAZ-SRDX and RNAi seedlings displayed opposite phenotypes. In addition, our results indicated that GAZ was involved in the transcriptional regulation of ABA and GA homeostasis. In agreement with pre- vious studies that ABA and GA coordinate to control the timing of MC formation, we also confirmed the unique interplay between ABA and GA and identified factors and regulatory networks bridging the two hor- mone pathways during GT maturation of the Arabidopsis root.

关键词： ABA GA GRAS ground tissue root development transcription factor

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The relationships between maize(Zea mays L.)lodging resistance and yield formation depend on dry matter allocation to ear and stem

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The Crop Journal 2023年第1期11卷 258-268页

作者： Ping Zhang Shuangcheng Gu Yuanyuan Wang Chenchen Xu Yating Zhao Xiaoli Liu Pu Wang Shoubing Huang College of Agronomy and biotechnology China Agricultural UniversityBeijing 100193China College of Agronomy South China Agricultural UniversityGuangzhou 510642GuangdongChina

Lodging is a critical constraint to yield *** appear to be tradeoffs between yield formation and lodging resistance in ***,it is feasible to reduce lodging risk as well as increase grain yield by optimizing dry-matter allocation to different organs under different environments.A three-year field experiment was conducted using four maize cultivars with differing lodging resistances and five growing environments in 2018–***-susceptible(LS)cultivars on average yielded more than lodging-resistant(lr)cultivars when lodging was not *** yield components kernel number per ear(KN)and thousand-kernel weight(TKW)were both negatively correlated with lodging resistance traits(stalk bending strength,rind penetration strength,and dry matter weight per internode length).Before silking,the lr cultivar Lishou 1(LS1)transported more assimilates to the basal stem,resulting in a thicker basal stem,which reduced dry matter allocation to the ear and in turn *** lower KN of LS1 was also due partly to the lower plant height(PH),which increased lodging resistance but limited plant dry matter *** contrast,the LS cultivars Xianyu 335(XY335)and Xundan 20(XD20)produced and allocated more photoassimilates to ears,but limited dry matter allocation to *** silking,LS cultivars showed higher TKW than lr cultivars as a function of high photoassimilate productivity and high assimilate allocation to the *** higher lodging resistance of LS1 was due mainly to the greater assimilate allocation to stem after silking and lower PH and ear height(EH).High-yielding and high-lr traits of Fumin(FM985)were related to optimized EH and stem anatomical structure,higher leaf productivity,low assimilate demand for kernel formation,and assimilate partitioning to ear.A high presilking temperature accelerated stem extension but reduced stem dry matter accumulation and basal stem ***-silking temperature influences lodging resistance and yield m

关键词： Corn Lodging Yield formation Physical traits Dry matter allocation

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