caa a22 4500 606208771 CHVBK 20210128101024.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00425-015-2256-x doi (NATIONALLICENCE)springer-10.1007/s00425-015-2256-x Physiological role of phenolic biostimulants isolated from brown seaweed Ecklonia maxima on plant growth and development [Elektronische Daten] [Adeyemi Aremu, Nqobile Masondo, Kannan Rengasamy, Stephen Amoo, Jiří Gruz, Ondřej Bíba, Michaela Šubrtová, Aleš Pěnčík, Ondřej Novák, Karel Doležal, Johannes Van Staden] Main conclusion : Eckol, a major phenolic compound isolated from brown seaweed significantly enhanced the bulb size and bioactive compounds in greenhouse-grown Eucomis autumnalis. We investigated the effect of eckol and phloroglucinol (PG) (phenolic compounds) isolated from the brown seaweed, Ecklonia maxima (Osbeck) Papenfuss on the growth, phytochemical and auxin content in Eucomis autumnalis (Mill.) Chitt. The model plant is a popular medicinal species with increasing conservation concern. Eckol and PG were tested at 10−5, 10−6 and 10−7M using soil drench applications. After 4months, growth parameters, phytochemical and auxin content were recorded. When compared to the control, eckol (10−6M) significantly improved bulb size, fresh weight and root production while the application of PG (10−6M) significantly increased the bulb numbers. However, both compounds had no significant stimulatory effect on aerial organs. Bioactive phytochemicals such as p-hydroxybenzoic and ferulic acids were significantly increased in eckol (10−5M) and PG (10−6M) treatments, compared to the control. Aerial (1,357pmol/g DW) and underground (1,474pmol/g DW) parts of eckol-treated (10−5M) plants yielded the highest concentration of indole-3-acetic acid. Overall, eckol and PG elicited a significant influence on the growth and physiological response in E. autumnalis. Considering the medicinal importance of E. autumnalis and the increasing strains on its wild populations, these compounds are potential tools to enhance their cultivation and growth. Springer-Verlag Berlin Heidelberg, 2015 Asparagaceae nationallicence Auxins nationallicence Conservation nationallicence Phaeophyceae nationallicence Phytohormones nationallicence Seaweeds nationallicence IAA : Indole-3-acetic acid nationallicence IAAsp : Indole-3-acetyl-l-aspartic acid nationallicence IAC : Immunoaffinity chromatography nationallicence MRM : Multiple reaction monitoring nationallicence MS : Murashige and Skoog (1962) medium nationallicence OxIAA : 2-Oxindole-3-acetic acid nationallicence PG : Phloroglucinol nationallicence PGR : Plant growth regulator nationallicence PPF : Photosynthetic photon flux nationallicence SPE : Solid-phase extraction nationallicence UHPLC : Ultra high performance liquid chromatography-tandem mass spectrometry nationallicence UV : Ultra-violet nationallicence Aremu Adeyemi Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut Masondo Nqobile Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut Rengasamy Kannan Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut Amoo Stephen Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut Gruz Jiří Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut Bíba Ondřej Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut Šubrtová Michaela Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut Pěnčík Aleš Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut Novák Ondřej Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut Doležal Karel Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut Van Staden Johannes Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut Planta Springer Berlin Heidelberg 241/6(2015-06-01), 1313-1324 0032-0935 241:6<1313 2015 241 425 https://doi.org/10.1007/s00425-015-2256-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00425-015-2256-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aremu Adeyemi Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut NATIONALLICENCE 700 1- Masondo Nqobile Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut NATIONALLICENCE 700 1- Rengasamy Kannan Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut NATIONALLICENCE 700 1- Amoo Stephen Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut NATIONALLICENCE 700 1- Gruz Jiří Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut NATIONALLICENCE 700 1- Bíba Ondřej Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut NATIONALLICENCE 700 1- Šubrtová Michaela Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut NATIONALLICENCE 700 1- Pěnčík Aleš Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut NATIONALLICENCE 700 1- Novák Ondřej Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut NATIONALLICENCE 700 1- Doležal Karel Laboratory of Growth Regulators & Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University and Institute of Experimental Botany AS CR, Šlechtitelů 11, 783 71, Olomouc, Czech Republic aut NATIONALLICENCE 700 1- Van Staden Johannes Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg Campus, Private Bag X01, 3209, Scottsville, South Africa aut NATIONALLICENCE 773 0- Planta Springer Berlin Heidelberg 241/6(2015-06-01), 1313-1324 0032-0935 241:6<1313 2015 241 425