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Phytoremediation Strategies for Heavy Metal Contamination: A Review on Sustainable Approach for Environmental Restoration

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Journal of Environmental Protection 2024年第4期15卷 450-474页

作者： Mariam Salifu Matthew Abu John Murtala Abubakar Ibukunoluwa Abimbola Bankole Nneka Damola Ajayi Olawumi Amusan Department of Chemistry and Biochemistry University of Mississippi Olemiss MS USA Department of Biochemistry Ahmadu Bello University Zaria Nigeria Department of plant pathology North Dakota State University Fargo ND USA Directorate of Research and Development Nigerian Institute of Leather and Science Technology (NILEST) Zaria Nigeria Department of Chemistry University of Akron Akron OH USA

Current globalization trends and important breakthroughs globally need a complete study of heavy metal contamination, its causes, its impacts on human and environmental health, and different remediation strategies. Heavy metal pollution is mostly produced by urbanization and industry, which threatens ecosystems and human health. Herein, we discuss a sustainable environmental restoration strategy employing phytoremediation for heavy metal pollution, the carcinogenic, mutagenic, and cytotoxic effects of heavy metals such as cadmium, copper, mercury, selenium, zinc, arsenic, chromium, lead, nickel, and silver, which may be fatal. Phytoremediation, which was prioritized, uses plants to remove, accumulate, and depollute pollutants. This eco-friendly method may safely collect, accumulate, and detoxify toxins using plants, making it popular. This study covers phytostabilization, phytodegradation, rhizodegradation, phytoextraction, phytovolatilization, and rhizofiltration. A phytoremediation process’s efficiency in varied environmental circumstances depends on these components’ complex interplay. This paper also introduces developing phytoremediation approaches including microbe-assisted, chemical-assisted, and organic or bio-char use. These advancements attempt to overcome conventional phytoremediation’s limitations, such as limited suitable plant species, location problems, and sluggish remediation. Current research includes machine learning techniques and computer modeling, biostimulation, genetic engineering, bioaugmentation, and hybrid remediation. These front-line solutions show that phytoremediation research is developing towards transdisciplinary efficiency enhancement. We acknowledge phytoremediation’s promise but also its drawbacks, such as site-specific variables, biomass buildup, and sluggish remediation, as well as ongoing research to address them. In conclusion, heavy metal pollution threatens the ecology and public health and must be reduced. Phytoremediation

关键词： Phytoremediation Heavy-Metal Contamination Sustainability Restoration

Tea plant (Camellia sinensis) lipid metabolism pathway modulated by tea field microbe (Colletotrichum camelliae) to promote disease

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Horticulture Research 2023年第4期10卷 110-123页

作者： Shouan Liu Shuhan Zhang Shengnan He Xiaoyan Qiao A.Runa Laboratory of Tea and Medicinal plant biology College of Plant SciencesJilin UniversityChangchun 130062China Laboratory of Molecular plant pathology College of Plant SciencesJilin UniversityChangchun 130062China Guangdong Provincial Key Laboratory of Tea plant Resources Innovation and Utilization Guangdong Academy of Agricultural Sciences Tea Research InstituteGuangzhou 510640China

Tea is one of the most popular healthy and non-alcoholic beverages *** anthracnose is a disease in tea mature leaves and ultimately affects yield and *** camelliae is a dominant fungal pathogen in the tea field that infects tea plants in *** pathogenic factors of fungus and the susceptible factors in the tea plant are not *** this work,we performed molecular and genetic studies to observe a cerato-platanin protein CcCp1 from ***,which played a key role in fungal pathogenicity.CcCp1 mutants lost fungal virulence and reduced the ability to produce *** and metabolome were then performed and analysed in tea-susceptible and tea-resistant cultivars,Longjing 43 and Zhongcha 108,upon *** wild-type CCA andCcCp1 infection,*** differentially expressed genes and the differentially accumulated metabolites in tea plants were clearly overrepresented such as linolenic acid and linoleic acid metabolism,glycerophospholipid metabolism,phenylalanine biosynthesis and metabolism,biosynthesis of f lavonoid,f lavone and f lavonol *** particular,the accumulation of jasmonic acid was significantly increased in the susceptible cultivar Longjing 43 upon CCA infection,in the fungal CcCp1 protein dependent manner,suggesting the compound involved in regulating fungal *** addition,other metabolites in the glycerophospholipid and phenylalanine pathway were observed in the resistant cultivar Zhongcha 108 upon fungal treatment,suggesting their potential role in defense *** together,this work indicated *** CcCp1 affected the tea plant lipid metabolism pathway to promote disease while the lost function of CcCp1 mutants altered the fungal virulence and plant response.

关键词： field metabolism Tea

Natural Variation in Tomato Reveals Differences in the Recognition of AvrPto and AvrPtoB Effectors from Pseudomonas syringae

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Molecular plant 2016年第5期9卷 639-649页

作者： Christine M. Kraus Kathy R. Munkvold Gregory B. Martin Boyce Thompson Institute for plant Research Ithaca NY 14853 USA plant pathology and plant-microbe biology section School of Integrative Plant Science Cornell University Ithaca NY 14853 USA Beckman Coulter Indianapolis IN 46268 USA

The Pto protein kinase from Solanum pimpinellifolium interacts with Pseudomonas syringae effectors AvrPto or AvrPtoB to activate effector-triggered immunity. The previously solved crystal structures of the AvrPto-Pto and AvrPtoB-Pto complexes revealed that Pro binds each effector through both a shared and a unique interface. Hera we use natural variation in wild species of tomato to further investigate Pto recognition of these two effectors. One species, Solanum chmielewskU, was found to have many accessions that recognize only AvrPtoB. The Pto ortholog from one of these accessions was responsible for recognition of AvrPtoB and it differed from Solanum pimpinellifolium Pto by only 14 amino acids, including two in the AvrPto-specific interface, glutamate-49/glycine-51. Converting these two residues to those in Pro （histidine-49/valine-51） did not restore recognition of AvrPto. Subsequent experiments revealed that a single substitution of a histidine-to-aspartate at position 193 in Pto, which is not near the AvrPto- specific interface, was sufficient for conferring recognRion of AvrPto in plant cells. The reciprocal substi- tution of aspartate-to-histidine-193 in Pto abolished AvrPto recognition, confirming the importance of this residue. Our results reveal new aspects about effector recognition by Pto and demonstrate the value of using natural variation to understand the interaction between resistance proteins and pathogen effectors.

关键词： Effector-triggered immunity natural variation plant immunity Pseudomonas syringae Pto tomato

Cell-type-specific transcriptomics reveals that root hairs and endodermal barriers play important roles in beneficial plant-rhizobacterium interactions

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Molecular plant 2023年第7期16卷 1160-1177页

作者： Eline H.Verbon Louisa M.Liberman Jiayu Zhou Jie Yin CornéM.J.Pieterse Philip N.Benfey loannis A.Stringlis Ronnie de Jonge plant-microbe Interactions Department of BiologyScience4LifeUtrecht UniversityP.0.Box 800.563508 TB Utrechtthe Netherlands Howard Hughes Medical Institute Duke UniversityDurhamNC 27708USA Department of biology Duke UniversityDurhamNC 27708USA Laboratory of plant pathology Agricultural University of Athens75 lera Odos str11855 AthensGreece

Growth-and health-promoting bacteria can boost crop productivity in a sustainable *** simiae WCS417is sucha bacterium that efficiently colonizes roots,modifiesthe architecture of the root systemto increase its size,and induces systemic resistance to make plants more resistant to pests and *** previous work suggested that WCS417-induced phenotypes are controlled by root cell-type-specific ***,it remains unclear how WCS417 affects these *** this study,we transcriptionally profiled five Arabidopsis thaliana root cell types following WCS417 *** found that the cortex and endodermis have the most differentially expressed genes,even though they are not in direct contact with this epiphytic *** of these genes are associated with reduced cell wall biogenesis,and mutant analysis suggests that this downregulation facilitates WCS417-driven root architectural ***,we observed elevated expression of suberin biosynthesis genes and increased deposition of suberin in the endodermis of WCS417-colonized *** an endodermal barrier mutant,we showed the importance of endodermal barrier integrity for optimal plant-beneficial bacterium *** of the transcriptome profiles in the two epidermal cell types that are in direct contact with WcS417-trichoblasts that form root hairs and atrichoblasts that do not-implies a difference in potential for defense gene *** both cell types respond to WCS417,trichoblasts displayed both higher basal and WCS417-dependent activation of defense-related genes compared with *** suggests that root hairs may activate root immunity,a hypothesis that is supported by differential immune responses in root hair *** together,these results highlight the strength of cell-type-specific transcriptional profiling to uncover"masked"biological mechanisms underlying beneficial plant-microbe associations.

关键词： FACs cell-type-specific transcriptomics root immunity beneficial rhizobacteria suberin root hair

plant Genome Editing Database (PGED): A Call for Submission of Information about Genome-Edited plant Mutants

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Molecular plant 2019年第2期12卷 127-129页

作者： Yi Zheng Ning Zhang Gregory B. Martin Zhangjun Fei Boyce Thompson Institute for plant Research Ithaca NY 14853 USA plant pathology and plant-microbe biology section School of Integrative 2Plant Pathology and Plant-Microbe Biology Section School of Integrative Plant Science Cornell University Ithaca NY 14853 USA USDA-ARS Robert W. Holley Center for Agriculture and Health Ithaca NY 14853 USA These authors contributed equally to this article

Recent advances in genome editing technologies, particularly CRISPR/Cas, enable the alteration of DNA sequences to produce deletions, insertions, and substitutions in genes (Jaganathan et al., 2018), as well as large ... 详细信息

关键词： plant Genome Editing Database (PGED) Genome-Edited plant Mutants

rAL Effectors Drive Transcription Bidirectionally in plants

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Molecular plant 2017年第2期10卷 285-296页

作者： Li Wang Fabio C. Rinaldi Pallavi Singh Erin L. Doyle Zoe E. Dubrow Tuan Tu Tran Alvaro L. Perez-Quintero Boris Szurek Adam J. Bogdanove plant pathology and plant-microbe biology section School of Integrative Plant Science Cornell University 334 Plant Science Building Ithaca NY 14853 USA Department of biology Doane University 1014 Boswell Avenue Crete NE 68333 USA UMR Interactions-plantes-Microorganismes-Environnement IRD-Cirad-Universite Montpellier Montpellier France

TAL effectors delivered by phytopathogenic Xanthomonas species are DNA-sequence-specific transcrip- tional activators of host susceptibility genes and sometimes resistance genes. The modularity of DNA recognition by TAL effectors makes them important also as tools for gene targeting and genome editing. Effector binding elements （EBEs） recognized by native TAL effectors in plants have been identified only on the forward strand of target promoters. Here, we demonstrate that TAL effectors can drive plant tran- scription from EBEs on either strand and in both directions. Furthermore, we show that a native TAL effector from Xanthomonas oryzae pv. oryzicola drives expression of a target with an EBE on each strand of its promoter. By inserting that promoter and derivatives between two reporter genes oriented head to head, we show that the TAL effector drives expression from either EBE in the respective orientations, and that activity at the reverse-strand EBE also potentiates forward transcription driven by activity at the forward-strand EBE. Our results reveal new modes of action for TAL effectors, suggesting the possibility of yet unrecognized targets important in plant disease, expanding the search space for off-targets of custom TAL effectors, and highlighting the potential of TAL effectors for probing fundamental aspects of plant transcription.

关键词： xanthomonas transcription activator-like effector bidirectional reporter enhancer element off-target

Aphids and their transmitted potato viruses: A continuous challenges in potato crops

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Journal of Integrative Agriculture 2020年第2期19卷 367-375页

作者： XU Yi Stewart M.GRAY Department of plant pathology Nanjing Agricultural UniversityNanjing 210095P.R.China section of plant pathology and plant-microbe biology School of Integrated Plant ScienceCornell UniversityIthacaNY 14850USA Emerging Pest and Pathogens Research Unit United States Department of Agriculture–Agricultural Research ServiceIthacaNY 14850USA

Aphid is one of the most destructive insect pests on cultivated plants in temperate *** piercing-sucking mouthparts and phloem feeding behavior directly damage crops and deplete plant ***(Solanum tuberosum L.)is one of the most important food sources on the planet,and several aphid species,e.g.,Myzus persicae(Sulzer)(green peach aphid)and Macrosiphum euphorbiae(Thomas)(potato aphid)(Hemiptera:Aphididae)colonize potato and transmit several economically important ***-transmitted potato viruses have been emerging all over the world as a very serious problem in potato production,inducing a wide variety of foliar and tuber symptoms,leading to severe yield reduction and loss of tuber *** this review,recent advances in understanding the interactions of potato viruses with their hosts,aphid vectors and the environment are described.

关键词： aphids virus potato vector transmission

Metabolites Composition of Bacillus subtilis HussainT-AMU Determined by LC-MS and Their Effect on Fusarium Dry Rot of Potato Seed Tuber

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Phyton-International Journal of Experimental Botany 2023年第3期92卷 783-799页

作者： Touseef Hussain Abrar A.Khan Heba I.Mohamed plant pathology and Nematology section Department of BotanyAligarh Muslim UniversityAligarhIndia Biological and Geological Sciences Department Faculty of EducationAin Shams UniversityCairoEgypt

Fusarium dry rot is considered to be the most critical soilborne and postharvest disease that damages potato tubers worldwide when they are stored for a long *** study was performed to demonstrate the effect of crude extract,culture filtrate,and cell suspension obtained from the bacterium Bacillus subtilis Hussain T-AMU,on the net house and *** oil-contaminated soil,through the serial dilution method,biosurfactant bacteria were isolated on nutrient agar *** isolate and screen the prospective biosurfactant strain,various biosurfactant screening methods were *** protocols were carried out for morphological,molecular,and chemical *** disease incidences were significantly decreased under net house and field conditions after treatment with biosurfactant extract(20%,70%),culture filtrate(23%,49%),and bacterial cell suspension(46%,27%),*** results indicate a significant effect of *** HussainT-AMU against Fusarium *** characterization of the partially purified extract by gas-chromatography indicated the existence of a high amount of methyl ester fatty *** quantitative analysis determined the presence of lipopeptide-surfactin,fengycin,and iturin in the biosurfactant *** electron microscopy revealed that morphological variation was revealed in the structure of stomata size in leaves and in the mycelia of the pathogen that was *** promising biocontrol agent can be a plausible option for further research and can also be used for the production of green biomolecules at an additional industrial level.

关键词： Biosurfactant biocontrol agents disease severity lipopeptide stomata

Rice St#pe Virus Interferes with S-acylation of Remorin and Induces Its Autophagic Degradation to Facilitate Virus Infection

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Molecular plant 2018年第2期11卷 269-287页

作者： Shuai Fu Yi Xu Chenyang Li Yi Li dianxiang Wu Xueping Zhou State Key Laboratory of Rice biology Institute of Biotechnology Zhejiang University Hangzhou 310058 China State Key Laboratory for biology of plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 China State Key Laboratory of Protein and plant Gene Research College of Life Sciences Peking University Beijing 100871 China section of plant pathology and plant-microbe biology School of Integrated Plant Science Cornell University Ithaca NY USA

Remorins are plant-specific membrane-associated proteins and were proposed to play crucial roles in plant-pathogen interactions. However, little is known about how pathogens counter remorin-mediated host responses. In this study, by quantitative whole-proteome analysis we found that the remorin protein （NbREM1） is downregulated early in Rice stripe virus （RSV） infection. We further discovered that the turn- over of NbREM1 is regulated by S-acylation modification and its degradation is mediated mainly through the autophagy pathway. Interestingly, RSV can interfere with the S-acylation of NbREM1, which is required to negatively regulate RSV infection by restricting virus cell-to-cell trafficking. The disruption of NbREM1 S-acylation affects its targeting to the plasma membrane microdomain, and the resulting accumulation of non-targeted NbREM1 is subjected to autophagic degradation, causing downregulation of NbREMI. Moreover, we found that RSV-encoded movement protein, NSvc4, alone can interfere with NbREM1 S-acylation through binding with the C-terminal domain of NbREM1 the S-acylation of OsREM1.4, the homologous remorin of NbREM1, and thus remorin-mediated defense against RSV in rice, the original host of RSV, indicating that downregulation of the remorin protein level by interfering with its S-acylation is a common strategy adopted by RSV to overcome remorin-mediated inhibition of virus movement.

关键词： remorins S-acylation autophagy rice stripe virus movement