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Vongnhay V, Shukla MR, Ayyanath MM, Sriskantharajah K, Saxena PK. In Vitro Morphogenesis of Tobacco: Modulation of Endogenous Growth Regulators by Tulsi (Holy Basil). PLANTS (BASEL, SWITZERLAND) 2024; 13:2002. [PMID: 39065528 PMCID: PMC11280594 DOI: 10.3390/plants13142002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/15/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024]
Abstract
Plant growth regulators (PGRs) play a vital role in the induction of morphogenesis in vitro. Synthetic PGRs are commonly used to induce organogenesis and somatic embryogenesis from various explants, while natural substances are rarely utilized. This study aimed to enhance the regenerative response in Nicotiana tabacum leaf explants using Tulsi (Ocimum sanctum) leaf extract and to elucidate the biochemical interactions during modulation of endogenous plant growth regulators, including indole-3-acetic acid (IAA), abscisic acid (ABA), zeatin, and 6-(γ, γ-dimethylallylamino) purine (2iP). Tulsi leaf extract significantly improved shoot production through interactions between endogenous hormones and those present in the extract, which enhanced stress mitigation. The 20% Tulsi leaf extract treatment produced significantly more shoots than the control, coinciding with increased endogenous IAA and zeatin levels starting on day 10 in culture. Furthermore, ABA and zeatin concentrations increased on days 15 and 25, respectively, in the 20% Tulsi extract treatment, suggesting their role in the induction of somatic embryo-like structures. ABA likely acts as an activator of stress responses, encouraging the development of these structures. Additionally, 2iP was involved in the induction of both forms of regeneration in the 10% and 20% extract treatments, especially in combination with ABA. These results suggest that Tulsi leaf extract holds promising potential as a natural supplement for increasing plant regeneration in vitro and advancing our understanding of how natural extracts of plant origin can be harnessed to optimize plant regeneration processes in vitro.
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Affiliation(s)
| | | | | | | | - Praveen K. Saxena
- Department of Plant Agriculture, Gosling Research Institute for Plant Preservation, University of Guelph, Guelph, ON N1G 2W1, Canada; (V.V.); (M.R.S.); (M.-M.A.); (K.S.)
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2
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Vongnhay V, Shukla MR, Ayyanath MM, Sriskantharajah K, Saxena PK. Enhanced In Vitro Plant Morphogenesis of Tobacco: Unveiling Indoleamine-Modulated Adaptogenic Properties of Tulsi ( Ocimum sanctum L.). PLANTS (BASEL, SWITZERLAND) 2024; 13:1370. [PMID: 38794439 PMCID: PMC11125241 DOI: 10.3390/plants13101370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/08/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
The medicinal plant tulsi (Ocimum sanctum L.) is acknowledged for its invigorating and healing properties that enhance resilience to stress in various human and animal models by modulating antioxidant compounds. While extensive research has documented these effects in humans, the adaptogenic potential of tulsi in stressful in vitro plant systems has not been explored. This study aimed to elucidate the adaptogenic properties of tulsi leaf extract on the in vitro regeneration of tobacco leaf explants through an investigation of the indoleamines at different developmental stages. Shoot regeneration from leaf explants on the medium supplemented with tulsi extract (20%) was compared to the control, and the differences in indoleamine compounds were analyzed using ultra-performance liquid chromatography. Treatment of the explants with the extract resulted in an almost two-fold increase in the number of regenerants after four weeks of culture, and 9% of the regenerants resembled somatic embryo-like structures. The occurrence of browning in the extract-treated explants stopped on day 10, shoots began to develop, and a significant concentration of tryptamine and N-acetyl-serotonin accumulated. A comparative analysis of indoleamine compounds in intact and cut tobacco leaves also revealed the pivotal role of melatonin and 2-hydroxymelatonin functioning as antioxidants during stress adaptation. This study demonstrates that tulsi is a potent adaptogen that is capable of modulating plant morphogenesis in vitro, paving the way for further investigations into the role of adaptogens in plant stress biology.
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Affiliation(s)
| | | | | | | | - Praveen K. Saxena
- Department of Plant Agriculture, Gosling Research Institute for Plant Preservation, University of Guelph, Guelph, ON N1G 2W1, Canada; (V.V.); (M.R.S.); (M.-M.A.); (K.S.)
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3
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Akram S, Sultana B, Aasi MR, Mushtaq M, Liu RH. Salting-Out Assisted Liquid-Liquid Microextraction and Reverse-Phase Chromatographic Quantification of Two Neonicotinoid Insecticides from Fruits and Vegetables. J Chromatogr Sci 2023; 61:875-884. [PMID: 37528755 DOI: 10.1093/chromsci/bmad055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 06/05/2023] [Accepted: 07/14/2023] [Indexed: 08/03/2023]
Abstract
The present monograph describes the salting-out assisted liquid-liquid microextraction (SALLME) and reverse-phase high-performance liquid chromatography with diode array detector (RP-HPLC-DAD) based quantification of two frequently applied neonicotinoid insecticides, i.e., acetamiprid (ACE) and imidacloprid (IMD), from selected tropical fruits (citrus and guava) and vegetables (tomato, okra and cauliflower). The SALLME conditions like pH, liquid/solid ratio and salt ratio (NaCl/Na2SO4) were varied over a wide range of conditions for the enhanced recovery of IMD and ACE from spiked quality control (low, high and medium) of fruits and vegetables. Meanwhile, RP-HPLC-DAD quantification of IMD and ACE was found to be linear over 1-100 μg/L with the coefficient of determination (R2) value ≥0.997 and slope of the calibration curve (sensitivity) ≥2.3 × 104 peak area unit (μAu). The analysis of selected fruits and vegetables after 0 (1 h), 1, 3, 7, 10 and 14 days of foliar application revealed the presence of IMD and ACE residues in okra and guava higher than maximum residual limits set by the Codex Alimentarius Commission until the third day of spray. Overall, the SALLME-RP-HPLC-DAD was found to be a rapid, selective and expedient choice for the routine analysis of neonicotinoids in environmental and food commodities.
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Affiliation(s)
- Sumia Akram
- Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan
- Division of Science and Technology, University of Education, College Road Township Lahore 56000, Pakistan
- Food Science, Cornell University, Ithaca, NY 14852, USA
| | - Bushra Sultana
- Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan
| | | | - Muhammad Mushtaq
- Food Science, Cornell University, Ithaca, NY 14852, USA
- Department of Chemistry, Government College University, Lahore 55300, Pakistan
| | - Rui Hai Liu
- Food Science, Cornell University, Ithaca, NY 14852, USA
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Vaidya H, Solanki VH, Kansara RV, Desai C, Singh S, Patel J, Vyas TK, Patel H. Development of a novel method for multiple phytohormone analysis by UHPLC-MS/MS from bio-enriched organic fertilizer prepared using banana pseudostem sap waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:71482-71490. [PMID: 36376649 DOI: 10.1007/s11356-022-23941-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 10/28/2022] [Indexed: 06/14/2023]
Abstract
Banana harvesting generates a large amount of banana pseudostem waste, which is generally burnt or thrown away, despite containing many nutrients. Bio-enriched organic fertilizer (BOF) was prepared from banana pseudostem sap (BPS), and it has been patented (Patent No. WO 2013/001478 Al). Several reports revealed that its application increases plant growth promotion of various horticulture crops. Apart from macro- and micronutrients, it also contained phytohormones. Hence, the present study aims to detect and quantify phytohormone in it. A novel method was developed to extract four phytohormones, viz., indole-3-acetic acid (IAA), indole-3-butyric acid (IBA), gibberellic acid (GA3), and salicylic acid (SA) using single solvent from BPS and BOF. Extracted hormones were analyzed by ultrahigh-performance liquid chromatography coupled with heated electrospray ionization tandem mass spectrometry (UHPLC-HESI-MS/MS). BOF showed a higher concentration of IAA, IBA, GA3, and SA than BPS. Thus, this is the first time a method has been reported to extract and detect phytohormones from banana pseudostem sap.
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Affiliation(s)
- Harihar Vaidya
- Soil and Water Management Research Unit, Navsari Agricultural University, Near Eru Junction, Navsari, 396450, Gujarat, India.
| | - Vanrajsinh H Solanki
- Food Quality Testing Laboratory, Navsari Agricultural University, Navsari, 396450, Gujarat, India
| | - Rohan V Kansara
- Food Quality Testing Laboratory, Navsari Agricultural University, Navsari, 396450, Gujarat, India
| | - Chirag Desai
- Soil and Water Management Research Unit, Navsari Agricultural University, Near Eru Junction, Navsari, 396450, Gujarat, India
| | - Susheel Singh
- Food Quality Testing Laboratory, Navsari Agricultural University, Navsari, 396450, Gujarat, India
| | - Jayesh Patel
- Soil and Water Management Research Unit, Navsari Agricultural University, Near Eru Junction, Navsari, 396450, Gujarat, India
| | - Trupti K Vyas
- Food Quality Testing Laboratory, Navsari Agricultural University, Navsari, 396450, Gujarat, India
| | - Hiren Patel
- School of Sciences, P.P. Savani University, Surat, 394135, Gujarat, India
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Thallusin Quantification in Marine Bacteria and Algae Cultures. Mar Drugs 2022; 20:md20110690. [PMID: 36355014 PMCID: PMC9696546 DOI: 10.3390/md20110690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
Thallusin, a highly biologically active, phytohormone-like and bacterial compound-inducing morphogenesis of the green tide-forming macroalga Ulva (Chlorophyta), was determined in bacteria and algae cultures. A sensitive and selective method was developed for quantification based on ultra-high-performance liquid chromatography coupled with electrospray ionization and a high-resolution mass spectrometer. Upon C18 solid phase extraction of the water samples, thallusin was derivatized with iodomethane to inhibit the formation of Fe−thallusin complexes interfering with the chromatographic separation. The concentration of thallusin was quantified during the relevant phases of the bacterial growth of Maribacter spp., ranging from 0.16 ± 0.01 amol cell−1 (at the peak of the exponential growth phase) to 0.86 ± 0.13 amol cell−1 (late stationary phase), indicating its accumulation in the growth medium. Finally, we directly determined the concentration of thallusin in algal culture to validate our approach for monitoring applications. Detection and quantification limits of 2.5 and 7.4 pmol L−1, respectively, were reached, which allow for quantifying ecologically relevant thallusin concentrations. Our approach will enable the surveying of thallusin in culture and in nature and will thus contribute to the chemical monitoring of aquaculture.
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Ashokkumar V, Jayashree S, Kumar G, Aruna Sharmili S, Gopal M, Dharmaraj S, Chen WH, Kothari R, Manasa I, Hoon Park J, Shruthi S, Ngamcharussrivichai C. Recent developments in biorefining of macroalgae metabolites and their industrial applications - A circular economy approach. BIORESOURCE TECHNOLOGY 2022; 359:127235. [PMID: 35487449 DOI: 10.1016/j.biortech.2022.127235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/21/2022] [Accepted: 04/23/2022] [Indexed: 06/14/2023]
Abstract
The macroalgal industry is expanding, and the quest for novel ingredients to improve and develop innovative products is crucial. Consumers are increasingly looking for natural-derived ingredients in cosmetic products that have been proven to be effective and safe. Macroalgae-derived compounds have growing popularity in skincare products as they are natural, abundant, biocompatible, and renewable. Due to their high biomass yields, rapid growth rates, and cultivation process, they are gaining widespread recognition as potentially sustainable resources better suited for biorefinery processes. This review demonstrates macroalgae metabolites and their industrial applications in moisturizers, anti-aging, skin whitening, hair, and oral care products. These chemicals can be obtained in combination with energy products to increase the value of macroalgae from an industrial perspective with a zero-waste approach by linking multiple refineries. The key challenges, bottlenecks, and future perspectives in the operation and outlook of macroalgal biorefineries were also discussed.
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Affiliation(s)
- Veeramuthu Ashokkumar
- Center for Transdisciplinary Research, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India; Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Faculty of Science, Chulalongkorn University, Pathum wan, Bangkok 10330, Thailand.
| | - Shanmugam Jayashree
- Department of Biotechnology, Stella Maris College (Autonomous), Chennai 600086, India
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea; Institute of Chemistry, Bioscience and Environmental Engineering, Faculty of Science and Technology, University of Stavanger, Box 8600 Forus, 4036 Stavanger, Norway
| | - S Aruna Sharmili
- Department of Biotechnology, Stella Maris College (Autonomous), Chennai 600086, India
| | - Mayakkannan Gopal
- Department of Marine Biotechnology, Academy of Maritime Education and Training [AMET] (Deemed to be University), Chennai 603112, Tamil Nadu, India
| | - Selvakumar Dharmaraj
- Department of Marine Biotechnology, Academy of Maritime Education and Training [AMET] (Deemed to be University), Chennai 603112, Tamil Nadu, India
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
| | - Richa Kothari
- Department of Environmental Sciences, Central University of Jammu, Rahya Suchani, (Bagla) Samba, J&K 181143, India
| | - Isukapatla Manasa
- Department of Biotechnology, Stella Maris College (Autonomous), Chennai 600086, India
| | - Jeong Hoon Park
- Sustainable Technology and Wellness R&D Group, Korea Institute of Industrial Technology (KITECH), 102 Jejudaehak-ro, Jeju-si, Jeju-do 63243, South Korea
| | | | - Chawalit Ngamcharussrivichai
- Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Faculty of Science, Chulalongkorn University, Pathum wan, Bangkok 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology (PETROMAT), Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
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Tang Y, Xie H, Sun J, Li X, Zhang Y, Dai X. Alkaline thermal hydrolysis of sewage sludge to produce high-quality liquid fertilizer rich in nitrogen-containing plant-growth-promoting nutrients and biostimulants. WATER RESEARCH 2022; 211:118036. [PMID: 35032873 DOI: 10.1016/j.watres.2021.118036] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 12/05/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
To produce liquid fertilizer containing nitrogen-containing plant-growth-promoting nutrients (N-PGPN) and plant-growth-promoting biostimulants (N-PGPB) from sewage sludge is attracting increasing interest recently, due to its superb fertilizing effect and the ease of application. Thus, this study aims to investigate the feasibility of producing high-quality liquid fertilizer with N-PGPN and N-PGPB recovery through alkaline thermal hydrolysis (ATH) using Ca(OH)2. Results suggested that ATH treatment was superior in N solubilization (TSN/TN > 54%) and organic N maintenance in sludge liquor (> 80%) when compared to single thermal hydrolysis (TH). More surprisingly, ATH also promoted the production of N-PGPN and N-PGPB. As for N-PGPN, the maximum free amino acids (FAAs) accumulation in ATH liquor was 56.82 g/L at 120 °C while soluble protein (SPN) and soluble humic acid (SHA) reached 8.30-8.88 g/L and 1.88-2.05 g/L at 140-160 °C. The greatest N-PGPB produced by ATH treatment was achieved at 160 °C, with the detection of 1.156 mg/L phytohormones (indole-3-acetic acid and hydroxyphenyl acetic acids) and 4.95 mg/L allelochemicals (indolic derivatives and aromatic carboxylic acids). The 2D correlation FTIR maps analyses suggested, compared with TH, ATH could achieve protein hydrolysis before polysaccharides solubilization and denaturation with the temperature increased, thus avoiding Maillard reaction and benefiting N-PGPB production. Moreover, the laboratory investigation and field study indicated the usage of ATH liquor improved the growth of plants without inducing heavy metal contamination and soil salinization. Hence, ATH is a promising technology to produce high-quality liquid fertilizer rich with N-PGPN and N-PGPB from sewage sludge, especially suitable for such sludge with a low VS/TS ratio where biological treatment is inapplicable.
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Affiliation(s)
- Yanfei Tang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Hao Xie
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Jing Sun
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Xiaoou Li
- Nantong Yuezichun Biological Agriculture Technology Co., Ltd, Nantong 226000, China
| | - Yue Zhang
- China Civil Engineering Society Water Industry Association, Beijing 100082, China
| | - Xiaohu Dai
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
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Tang Y, Sun J, Dong B, Dai X. Thermal Hydrolysis Pretreatment-Anaerobic Digestion Promotes Plant-Growth Biostimulants Production from Sewage Sludge by Upregulating Aromatic Amino Acids Transformation and Quinones Supply. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:1938-1950. [PMID: 35005906 DOI: 10.1021/acs.est.1c06506] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Micromolecular plant-growth biostimulants (micro-PBs) production from sewage sludge is attracting increasing interest, as it is expected to enhance the fertilizing effect of sludge for land application. This study attempted to promote effective micro-PBs production from sewage sludge through thermal hydrolysis pretreatment-anaerobic digestion (THP-AD) and explore the underpinning regulation mechanisms. Results showed that the highest effective micro-PB production in digested sludge was achieved in THP(160 °C)-AD by day 12, with 80.73 mg/kg volatile solid (VS) of phytohormones and 417.75 mg/kg VS of allelochemicals, and these effective micro-PBs all originated from aromatic amino acids (AAAs). The metabolomic and metagenomic results revealed that, as compared with THP(120 °C)-AD and AD without THP, THP(160°C)-AD uniquely upregulated AAAs biosynthesis and consequently improved AAAs metabolism toward effective micro-PBs production. Further exploration of related microbial pathways and metabolites suggested that the upregulated AAAs biosynthesis in THP(160 °C)-AD in the early stage was partially attributed to the enhanced carbohydrate release. More importantly, the results showed that the amount of quinones, which probably facilitate energy generation via acting as electron-transfer mediators, was significantly positively correlated with the abundance of AAAs biosynthesis genes (R2 = 0.93). Hence, the improved initial release and biosynthesis of quinones are critical in enhancing the AAAs biosynthesis in THP(160 °C)-AD. Moreover, the enhanced quinones supply and the consequent active AAAs transformation in THP(160 °C)-AD reinforced the humification process, highly supporting effective micro-PBs stabilization. The important roles of quinones in effective micro-PBs production and stabilization in sludge anaerobic digestion should be considered in technology development for micro-PBs recovery.
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Affiliation(s)
- Yanfei Tang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Jing Sun
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Bin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xiaohu Dai
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
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Ali O, Ramsubhag A, Jayaraman J. Biostimulant Properties of Seaweed Extracts in Plants: Implications towards Sustainable Crop Production. PLANTS (BASEL, SWITZERLAND) 2021; 10:531. [PMID: 33808954 PMCID: PMC8000310 DOI: 10.3390/plants10030531] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/19/2021] [Accepted: 01/23/2021] [Indexed: 02/01/2023]
Abstract
The use of seaweed-based bioproducts has been gaining momentum in crop production systems owing to their unique bioactive components and effects. They have phytostimulatory properties that result in increased plant growth and yield parameters in several important crop plants. They have phytoelicitor activity as their components evoke defense responses in plants that contribute to resistance to several pests, diseases, and abiotic stresses including drought, salinity, and cold. This is often linked to the upregulation of important defense-related genes and pathways in the plant system, priming the plant defenses against future attacks. They also evoke phytohormonal responses due to their specific components and interaction with plant growth regulation. Treatment by seaweed extracts and products also causes significant changes in the microbiome components of soil and plant in support of sustainable plant growth. Seaweed extracts contain a plethora of substances which are mostly organic, but trace levels of inorganic nutrient elements are also present. Fractionation of seaweed extracts into their components and their respective bioassays, however, has not yielded favorable growth effects. Only the whole seaweed extracts have been consistently proven to be very effective, which highlights the role of multiple components and their complex interactive effects on plant growth processes. Since seaweed extracts are highly organic, they are ideally suited for organic farming and environmentally sensitive crop production. They are also very compatible with other crop inputs, paving the way for an integrated management approach geared towards sustainability. The current review discusses the growth and functional effects evoked by seaweed extracts and their modes and mechanisms of action in crop plants which are responsible for elicitor and phytostimulatory activities. The review further analyses the potential value of seaweed extracts in integrated crop management systems towards sustainable crop production.
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Affiliation(s)
| | | | - Jayaraj Jayaraman
- Department of Life Sciences, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago; (O.A.); (A.R.)
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Yalçın S, Uzun M, Karakaş Ö, Sözgen Başkan K, Okudan EŞ, Apak MR. Determination of Total Antioxidant Capacities of Algal Pigments in Seaweed by the Combination of High-Performance Liquid Chromatography (HPLC) with A Cupric Reducing Antioxidant Capacity (CUPRAC) Assay. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1855439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Sibel Yalçın
- Chemistry Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Merve Uzun
- Institute of Graduate Students, Chemistry Department, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Özge Karakaş
- Institute of Graduate Students, Chemistry Department, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Kevser Sözgen Başkan
- Chemistry Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
| | - Emine Şükran Okudan
- Faculty of Aquatic Sciences and Fisheries, Akdeniz University, Antalya, Turkey
| | - Mustafa Reşat Apak
- Chemistry Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
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11
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Yalçın S, Okudan EŞ, Karakaş Ö, Önem AN. Determination of Major Phytohormones in Fourteen Different Seaweeds Utilizing SPE–LC–MS/MS. J Chromatogr Sci 2019; 58:98-108. [DOI: 10.1093/chromsci/bmz074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 06/20/2019] [Accepted: 08/20/2019] [Indexed: 01/30/2023]
Abstract
Abstract
Analysis of plant growth regulators (PGRs) should be approached by considering their extremely low concentrations and serious interfering effects that result from the matrix of various plant tissues. In the current research, the separation and simultaneous determination of different classes of phytohormones in 14 seaweeds collected from Turkey seashores were achieved by using solid-phase extraction (SPE) followed by a rapid and sensitive liquid chromatography tandem mass detection method. OASIS HLB (Hydrophilic-Lipophilic Balance) cartridges were successfully used for SPE process to eliminate the matrix effect and enhance the PGRs including zeatin, benzyl amino purine, indole-3-acetic acid, abscisic acid and gibberellic acid within partially different polarities. Based on the optimized experimental conditions, the method presented excellent performance related to linearity (r, 0.9996–0.9999) within the ranges of 0.5–500 ng/mL, relative standard deviation values ((1.43–2.01) for intraday and (2.36–3.50) for interday)), the limit of detection (0.01–0.84 μg/L) and the limit of quantification (0.02–2.76 μg/L). The obtained results confirm that the SPE–liquid chromatography/tandem mass spectrometry method performed is highly effective and convenient for routine analyses of trace amounts of the tested phytohormones in seaweeds and any other plant samples as well.
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Affiliation(s)
- Sibel Yalçın
- Chemistry Department, Faculty of Engineering, Istanbul University Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
| | - Emine Şükran Okudan
- Marine Biology Department, Faculty of Aquatic Sciences and Fisheries, Akdeniz University, Antalya 07070, Turkey
| | - Özge Karakaş
- Chemistry Department, Faculty of Engineering, Istanbul University Cerrahpaşa, Avcilar, Istanbul 34320, Turkey
| | - Ayşe Nur Önem
- Application & Research Center for the Measurement of Food Antioxidants, Istanbul University Cerrahpaşa, Avcılar, Istanbul 34320, Turkey
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