Phytohormones and microRNAs as sensors and regulators of leaf senescence: Assigning macro roles to small molecules
Ageing or senescence is an intricate and highly synchronized developmental phase in the life of plant parts including leaf. Senescence not only means death of a plant part, but during this process, different macromolecules undergo degradation and the resulting components are transported to other par...
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Veröffentlicht in: | Biotechnology advances 2013-12, Vol.31 (8), p.1153-1171 |
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description | Ageing or senescence is an intricate and highly synchronized developmental phase in the life of plant parts including leaf. Senescence not only means death of a plant part, but during this process, different macromolecules undergo degradation and the resulting components are transported to other parts of the plant. During the period from when a leaf is young and green to the stage when it senesces, a multitude of factors such as hormones, environmental factors and senescence associated genes (SAGs) are involved. Plant hormones including salicylic acid, abscisic acid, jasmonic acid and ethylene advance leaf senescence, whereas others like cytokinins, gibberellins, and auxins delay this process. The environmental factors which generally affect plant development and growth, can hasten senescence, the examples being nutrient dearth, water stress, pathogen attack, radiations, high temperature and light intensity, waterlogging, and air, water or soil contamination. Other important influences include carbohydrate accumulation and high carbon/nitrogen level. To date, although several genes involved in this complex process have been identified, still not much information exists in the literature on the signalling mechanism of leaf senescence. Now, the Arabidopsis mutants have paved our way and opened new vistas to elucidate the signalling mechanism of leaf senescence for which various mutants are being utilized. Recent studies demonstrating the role of microRNAs in leaf senescence have reinforced our knowledge of this intricate process. This review provides a comprehensive and critical analysis of the information gained particularly on the roles of several plant growth regulators and microRNAs in regulation of leaf senescence. |
doi_str_mv | 10.1016/j.biotechadv.2013.02.003 |
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Senescence not only means death of a plant part, but during this process, different macromolecules undergo degradation and the resulting components are transported to other parts of the plant. During the period from when a leaf is young and green to the stage when it senesces, a multitude of factors such as hormones, environmental factors and senescence associated genes (SAGs) are involved. Plant hormones including salicylic acid, abscisic acid, jasmonic acid and ethylene advance leaf senescence, whereas others like cytokinins, gibberellins, and auxins delay this process. The environmental factors which generally affect plant development and growth, can hasten senescence, the examples being nutrient dearth, water stress, pathogen attack, radiations, high temperature and light intensity, waterlogging, and air, water or soil contamination. Other important influences include carbohydrate accumulation and high carbon/nitrogen level. To date, although several genes involved in this complex process have been identified, still not much information exists in the literature on the signalling mechanism of leaf senescence. Now, the Arabidopsis mutants have paved our way and opened new vistas to elucidate the signalling mechanism of leaf senescence for which various mutants are being utilized. Recent studies demonstrating the role of microRNAs in leaf senescence have reinforced our knowledge of this intricate process. This review provides a comprehensive and critical analysis of the information gained particularly on the roles of several plant growth regulators and microRNAs in regulation of leaf senescence.</description><identifier>ISSN: 0734-9750</identifier><identifier>EISSN: 1873-1899</identifier><identifier>DOI: 10.1016/j.biotechadv.2013.02.003</identifier><identifier>PMID: 23453916</identifier><identifier>CODEN: BIADDD</identifier><language>eng</language><publisher>Kidlington: Elsevier Inc</publisher><subject>abscisic acid ; air ; Arabidopsis ; Arabidopsis - genetics ; Arabidopsis - growth & development ; Arabidopsis mutants ; Auxins ; Biological and medical sciences ; Biotechnology ; carbon ; Cellular Senescence ; Cytokinins ; death ; environmental factors ; Ethylene ; flooded conditions ; Fundamental and applied biological sciences. Psychology ; genes ; Genes, Plant ; gibberellins ; growth and development ; hormones ; jasmonic acid ; Leaf senescence ; leaves ; light intensity ; MicroRNA ; MicroRNAs ; mutants ; nitrogen ; pathogens ; PCD ; plant development ; Plant Growth Regulators ; Plant Leaves ; salicylic acid ; Senescence associated genes (SAGs) ; soil pollution ; soil water ; temperature ; water stress</subject><ispartof>Biotechnology advances, 2013-12, Vol.31 (8), p.1153-1171</ispartof><rights>2013 Elsevier Inc.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2013 Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c428t-c2e3e319136ea1961583fdc37ff41108ef883d8f29adc47fbf8c6380e5e2a6a13</citedby><cites>FETCH-LOGICAL-c428t-c2e3e319136ea1961583fdc37ff41108ef883d8f29adc47fbf8c6380e5e2a6a13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.biotechadv.2013.02.003$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28032285$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23453916$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sarwat, Maryam</creatorcontrib><creatorcontrib>Naqvi, Afsar Raza</creatorcontrib><creatorcontrib>Ahmad, Parvaiz</creatorcontrib><creatorcontrib>Ashraf, Muhammad</creatorcontrib><creatorcontrib>Akram, Nudrat Aisha</creatorcontrib><title>Phytohormones and microRNAs as sensors and regulators of leaf senescence: Assigning macro roles to small molecules</title><title>Biotechnology advances</title><addtitle>Biotechnol Adv</addtitle><description>Ageing or senescence is an intricate and highly synchronized developmental phase in the life of plant parts including leaf. Senescence not only means death of a plant part, but during this process, different macromolecules undergo degradation and the resulting components are transported to other parts of the plant. During the period from when a leaf is young and green to the stage when it senesces, a multitude of factors such as hormones, environmental factors and senescence associated genes (SAGs) are involved. Plant hormones including salicylic acid, abscisic acid, jasmonic acid and ethylene advance leaf senescence, whereas others like cytokinins, gibberellins, and auxins delay this process. The environmental factors which generally affect plant development and growth, can hasten senescence, the examples being nutrient dearth, water stress, pathogen attack, radiations, high temperature and light intensity, waterlogging, and air, water or soil contamination. Other important influences include carbohydrate accumulation and high carbon/nitrogen level. To date, although several genes involved in this complex process have been identified, still not much information exists in the literature on the signalling mechanism of leaf senescence. Now, the Arabidopsis mutants have paved our way and opened new vistas to elucidate the signalling mechanism of leaf senescence for which various mutants are being utilized. Recent studies demonstrating the role of microRNAs in leaf senescence have reinforced our knowledge of this intricate process. This review provides a comprehensive and critical analysis of the information gained particularly on the roles of several plant growth regulators and microRNAs in regulation of leaf senescence.</description><subject>abscisic acid</subject><subject>air</subject><subject>Arabidopsis</subject><subject>Arabidopsis - genetics</subject><subject>Arabidopsis - growth & development</subject><subject>Arabidopsis mutants</subject><subject>Auxins</subject><subject>Biological and medical sciences</subject><subject>Biotechnology</subject><subject>carbon</subject><subject>Cellular Senescence</subject><subject>Cytokinins</subject><subject>death</subject><subject>environmental factors</subject><subject>Ethylene</subject><subject>flooded conditions</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>genes</subject><subject>Genes, Plant</subject><subject>gibberellins</subject><subject>growth and development</subject><subject>hormones</subject><subject>jasmonic acid</subject><subject>Leaf senescence</subject><subject>leaves</subject><subject>light intensity</subject><subject>MicroRNA</subject><subject>MicroRNAs</subject><subject>mutants</subject><subject>nitrogen</subject><subject>pathogens</subject><subject>PCD</subject><subject>plant development</subject><subject>Plant Growth Regulators</subject><subject>Plant Leaves</subject><subject>salicylic acid</subject><subject>Senescence associated genes (SAGs)</subject><subject>soil pollution</subject><subject>soil water</subject><subject>temperature</subject><subject>water stress</subject><issn>0734-9750</issn><issn>1873-1899</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkEtv1DAURi1ERYfCXwBvkNgkXNt5OOyGipdUtRXQteVxrmc8cuJiJ5X673GUgS5ZWZ_vuQ8dQiiDkgFrPhzLnQsTmoPuH0oOTJTASwDxjGyYbEXBZNc9JxtoRVV0bQ3n5GVKRwBWQy1ekHMuqlp0rNmQeHt4nMIhxCGMmKgeezo4E8OP621OiSYcU4hrIeJ-9npaYrDUo7ZLGZPB0eBHuk3J7Uc37umg8wQag88Tp0DToL2nQ45mzl-vyJnVPuHr03tB7r58_nX5rbi6-fr9cntVmIrLqTAcBQrWMdGgZl3Dailsb0RrbcUYSLRSil5a3uneVK3dWWkaIQFr5LrRTFyQ9-vc-xh-z5gmNbh8q_d6xDAnxaqGyabjwDMqVzTfnVJEq-6jG3R8VAzUYlwd1ZNxtRhXwFU2nlvfnLbMuwH7f41_FWfg3QnQyWhvox6NS0-cBMG5rDP3duWsDkrvY2bufuZNDQDUdcuXVZ9WArO1B4dRJeMW972LaCbVB_f_e_8AcwSu2g</recordid><startdate>20131201</startdate><enddate>20131201</enddate><creator>Sarwat, Maryam</creator><creator>Naqvi, Afsar Raza</creator><creator>Ahmad, Parvaiz</creator><creator>Ashraf, Muhammad</creator><creator>Akram, Nudrat Aisha</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20131201</creationdate><title>Phytohormones and microRNAs as sensors and regulators of leaf senescence: Assigning macro roles to small molecules</title><author>Sarwat, Maryam ; Naqvi, Afsar Raza ; Ahmad, Parvaiz ; Ashraf, Muhammad ; Akram, Nudrat Aisha</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-c2e3e319136ea1961583fdc37ff41108ef883d8f29adc47fbf8c6380e5e2a6a13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>abscisic acid</topic><topic>air</topic><topic>Arabidopsis</topic><topic>Arabidopsis - genetics</topic><topic>Arabidopsis - growth & development</topic><topic>Arabidopsis mutants</topic><topic>Auxins</topic><topic>Biological and medical sciences</topic><topic>Biotechnology</topic><topic>carbon</topic><topic>Cellular Senescence</topic><topic>Cytokinins</topic><topic>death</topic><topic>environmental factors</topic><topic>Ethylene</topic><topic>flooded conditions</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>genes</topic><topic>Genes, Plant</topic><topic>gibberellins</topic><topic>growth and development</topic><topic>hormones</topic><topic>jasmonic acid</topic><topic>Leaf senescence</topic><topic>leaves</topic><topic>light intensity</topic><topic>MicroRNA</topic><topic>MicroRNAs</topic><topic>mutants</topic><topic>nitrogen</topic><topic>pathogens</topic><topic>PCD</topic><topic>plant development</topic><topic>Plant Growth Regulators</topic><topic>Plant Leaves</topic><topic>salicylic acid</topic><topic>Senescence associated genes (SAGs)</topic><topic>soil pollution</topic><topic>soil water</topic><topic>temperature</topic><topic>water stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sarwat, Maryam</creatorcontrib><creatorcontrib>Naqvi, Afsar Raza</creatorcontrib><creatorcontrib>Ahmad, Parvaiz</creatorcontrib><creatorcontrib>Ashraf, Muhammad</creatorcontrib><creatorcontrib>Akram, Nudrat Aisha</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Biotechnology advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sarwat, Maryam</au><au>Naqvi, Afsar Raza</au><au>Ahmad, Parvaiz</au><au>Ashraf, Muhammad</au><au>Akram, Nudrat Aisha</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phytohormones and microRNAs as sensors and regulators of leaf senescence: Assigning macro roles to small molecules</atitle><jtitle>Biotechnology advances</jtitle><addtitle>Biotechnol Adv</addtitle><date>2013-12-01</date><risdate>2013</risdate><volume>31</volume><issue>8</issue><spage>1153</spage><epage>1171</epage><pages>1153-1171</pages><issn>0734-9750</issn><eissn>1873-1899</eissn><coden>BIADDD</coden><abstract>Ageing or senescence is an intricate and highly synchronized developmental phase in the life of plant parts including leaf. Senescence not only means death of a plant part, but during this process, different macromolecules undergo degradation and the resulting components are transported to other parts of the plant. During the period from when a leaf is young and green to the stage when it senesces, a multitude of factors such as hormones, environmental factors and senescence associated genes (SAGs) are involved. Plant hormones including salicylic acid, abscisic acid, jasmonic acid and ethylene advance leaf senescence, whereas others like cytokinins, gibberellins, and auxins delay this process. The environmental factors which generally affect plant development and growth, can hasten senescence, the examples being nutrient dearth, water stress, pathogen attack, radiations, high temperature and light intensity, waterlogging, and air, water or soil contamination. Other important influences include carbohydrate accumulation and high carbon/nitrogen level. To date, although several genes involved in this complex process have been identified, still not much information exists in the literature on the signalling mechanism of leaf senescence. Now, the Arabidopsis mutants have paved our way and opened new vistas to elucidate the signalling mechanism of leaf senescence for which various mutants are being utilized. Recent studies demonstrating the role of microRNAs in leaf senescence have reinforced our knowledge of this intricate process. This review provides a comprehensive and critical analysis of the information gained particularly on the roles of several plant growth regulators and microRNAs in regulation of leaf senescence.</abstract><cop>Kidlington</cop><pub>Elsevier Inc</pub><pmid>23453916</pmid><doi>10.1016/j.biotechadv.2013.02.003</doi><tpages>19</tpages></addata></record> |
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subjects | abscisic acid air Arabidopsis Arabidopsis - genetics Arabidopsis - growth & development Arabidopsis mutants Auxins Biological and medical sciences Biotechnology carbon Cellular Senescence Cytokinins death environmental factors Ethylene flooded conditions Fundamental and applied biological sciences. Psychology genes Genes, Plant gibberellins growth and development hormones jasmonic acid Leaf senescence leaves light intensity MicroRNA MicroRNAs mutants nitrogen pathogens PCD plant development Plant Growth Regulators Plant Leaves salicylic acid Senescence associated genes (SAGs) soil pollution soil water temperature water stress |
title | Phytohormones and microRNAs as sensors and regulators of leaf senescence: Assigning macro roles to small molecules |
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