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Mohammed MA, Amer NM, Abdallah HMI, Saleh MS. A comprehensive tool in recycling plant-waste of Gossypium barbadense L agricultural and industrial waste extracts containing gossypin and gossypol: hepatoprotective, anti-inflammatory and antioxidant effects. PLANT METHODS 2024; 20:54. [PMID: 38632634 PMCID: PMC11022478 DOI: 10.1186/s13007-024-01181-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/01/2024] [Indexed: 04/19/2024]
Abstract
Improper management of agricultural and industrial cotton wastes causes environmental pollution and worsens the climate change challenge. Green recycling of cotton could contribute to a circular economy. One of the economic values of cotton wastes lies in their bioactive components. Two types of cotton wastes-agricultural and industrial-of the species Gossypium barbadense L. Giza 95 were targeted in the current study, aiming to maximize their medicinal value and investigate the anti-inflammatory, hepatoprotective, and antioxidant activities of their phytochemical extracts. Phytochemical extraction was performed using different solvents extraction. An anti-inflammatory effect was tested in carrageenan-induced acute edema in a rat paw model. A carbon tetrachloride chronic model of liver injury was used for the assessment of hepatoprotective potential. Liver enzymes (AST and ALT), oxidative stress markers (MDA and GSH), inflammatory biomarkers (C-reactive protein), and histopathological features were investigated. As a result, ethyl acetate proved to be the solvent of best choice to extract the gossypin polyphenolics, where the extracted amount reached 14,826.2 µg/g, followed by butanol (8751.4 µg/g extract). The chloroform (CHCL3) fraction showed the highest amounts of gossypol (190.7 µg/g extract), followed by petroleum ether. Cotton waste's composition analysis showed a wide range of components, including 33 metabolites such as gossypetin, polyphenolics, and other metabolites that possess therapeutic effects. Both chloroform extract and industrial waste extracts showed superior anti-inflammatory and hepatoprotective effects in comparison to other extracts. All tested extracts (ethyl acetate, chloroform, and industrial waste) showed proper antioxidant activities.
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Affiliation(s)
- Mona A Mohammed
- Medicinal and Aromatic Plants Research Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, Dokki, Giza, Egypt.
| | - Nagat M Amer
- Environmental and Occupational Medicine Department, Environment and Climate Change Research Institute, National Research Centre, Dokki, Giza, Egypt
| | - Heba M I Abdallah
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre, Dokki, Giza, Egypt
| | - Mai S Saleh
- Environmental and Occupational Medicine Department, Environment and Climate Change Research Institute, National Research Centre, Dokki, Giza, Egypt
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Jabbour AA, Alzahrani A. The impact of chemical and hormonal treatments to improve seed germination and seedling growth of Juniperus procera Hochst. ex Endi. PeerJ 2024; 12:e17236. [PMID: 38618572 PMCID: PMC11015829 DOI: 10.7717/peerj.17236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 03/22/2024] [Indexed: 04/16/2024] Open
Abstract
Purpose Juniper (Juniperus procera) is a common forest tree species in Saudi Arabia. The decline in many populations of J. procera in Saudi Arabia is mainly due to seed dormancy and loss of natural regeneration. This study assessed the effects of chemical and hormonal treatments on seed germination and seedling growth in juniper plants. Methods The seeds were subjected to either chemical scarification with 90% sulfuric acid and 20% acetic acid for 6 min or hormonal treatment by seed soaking in two concentrations (50 and 100 ppm) of three growth regulators, namely, indole acetic acid (IAA), gibberellins (GA3), and kinetin, for 72 h. A control group without any seed treatment was also prepared. The experiments were performed in an incubator maintained at room temperature and under a light and dark period of 12 h for 6 w. The germinated seeds for each treatment were counted and removed from the dishes. The selected germinated seeds from different treatments were planted in a greenhouse and irrigated with tap water for another 6 weeks. The hormone-treated seedlings were sprayed with their corresponding hormone concentrations 1 w after planting. Results The highest percentage of seed germination was significantly recorded after seed soaking in 50 ppm GA3, whereas treatment with IAA (100 ppm) resulted in the best seedling growth. Seedlings treated with the three phytohormones showed a significant increase in photosynthetic pigments, total soluble sugars, proteins, percentage of oil, IAA, GA3, and kinetin contents of juniper seedlings compared with the control value, whereas abscisic acid content was decreased compared with chemical treatments. Conclusion The investigated different treatments had an effective role in breaking seed dormancy and improving seedling growth of J. procera, which is facing a notable decline in its population worldwide. Moreover, such an effect was more pronounced in the three phytohormones that succeeded in breaking dormancy and growth of the Juniperus plant than in the other treatments.
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Affiliation(s)
- Alae Ahmad Jabbour
- Department of Biology, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Abdulaziz Alzahrani
- Department of Biology, Faculty of Science, Al-Baha University, Alaqiq, Al-Baha, Saudi Arabia
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Alshamsi AAA, Sheteiwy MS, AbuQamar SF, El-Tarabily KA. Enhancement of mangrove growth performance using fish emulsion and halotolerant plant growth-promoting actinobacteria for sustainable management in the UAE. MARINE POLLUTION BULLETIN 2024; 199:115916. [PMID: 38150978 DOI: 10.1016/j.marpolbul.2023.115916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 12/05/2023] [Accepted: 12/10/2023] [Indexed: 12/29/2023]
Abstract
The combination of fish emulsion (FE) and the actinobacterial isolate, Streptomyces griseorubens UAE1 (Sg) capable of producing plant growth regulators (PGRs) and 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase, was evaluated on mangrove (Avicennia marina) in the United Arab Emirates. Under greenhouse and field conditions, sediments amended with the biostimulant FE effectively enhanced mangrove growth compared to those inoculated with Sg only. Plant growth promotion by Sg was more pronounced in the presence of FE (+FE/+Sg) than in individual applications. Our data showed that Sg appeared to use FE as a source of nutrients and precursors for plant growth promotion. Thus, in planta PGR levels following the combined +FE/+Sg were significantly induced. This is the first report in the field of marine agriculture that uses FE as a nutrient base for soil microorganisms to promote mangrove growth. This study will support mangrove restoration along the Arabian Gulf coastline as a nature-based solution to changing climate and economic activities.
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Affiliation(s)
- Al Anoud A Alshamsi
- Department of Biology, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Mohamed S Sheteiwy
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt; Department of Applied Biology, Faculty of Science, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Synan F AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates.
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates.
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Gharib FAEL, Osama K, Sattar AMAE, Ahmed EZ. Impact of Chlorella vulgaris, Nannochloropsis salina, and Arthrospira platensis as bio-stimulants on common bean plant growth, yield and antioxidant capacity. Sci Rep 2024; 14:1398. [PMID: 38228623 PMCID: PMC10791689 DOI: 10.1038/s41598-023-50040-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024] Open
Abstract
The use of bio-stimulants in agriculture has emerged as a promising strategy to improve crop growth and yield. One type of bio-stimulant that has gained attention is microalgae extracts, which are known for their high metabolic activity, bioactive compounds, and ability to enhance plant growth and development. To investigate their effectiveness, a pot experiment was conducted at the Experimental Farm of Helwan University in Egypt during the 2022 season. The experiment aimed to evaluate the efficacy of Chlorella vulgaris, Nannochloropsis salina, and Arthrospira platensis (Spirulina platensis) extracts as bio-stimulants, applied through foliar spray at concentrations ranging from 0.25 to 2.0%, on common bean plants. Analysis of algal extract showed that . N. salina had the highest content of promotive growth hormones gibberellins (GA3) (74.85 ± 2.7mg100 g-1 d.wt). and auxins (IAA) (34.57 ± 2.7µg 100 g-1 d.wt.) compared to Chlorella and Arthrospira..The results revealed that the application of C. vulgaris, N. salina, and A. platensis extracts at concentrations up to 1.0% significantly improved various growth parameters, such as root, and shoot length, number of leaves and flowers per plant, leaf area, and total fresh and dry weight per plant. These extracts also positively affected yield attributes, including the number and fresh weight of pods per plant, seed index, seed yield per plant, and per feddan [a unit of land area]. Furthermore, the application of these extracts increased the chlorophyll content index with the maximum values of CCI (17.95. and 17.81%) was obtained at 0.50% N. salina, followed by 0.50% C.vulgaris. In addition to increase in the capacity of both non-enzymatic antioxidants [such as total antioxidant capacity, phenolics, and flavonoids] and enzymatic antioxidants [including catalase and ascorbic oxidase]. The most promising results were observed with the application of N. salina, and C. vulgaris extracts at a concentration of 0.5%. Additionally, the extracts significantly reduced the content of oxidative stress markers, such as malondialdehyde, percentage of electrolyte leakage, and hydrogen peroxide, in common bean plants compared to the control group. Contrarily, the measured parameters were reduced, while the levels of oxidative stress markers and some antioxidants including peroxidase, ascorbic peroxidase, superoxide dismutase, glutathione peroxidase, and glutathione transferase were increased by three algal extracts at a concentration of 2.0%, compared to control plants. Additionally, the application of these microalgae extracts improved the quality parameters, proximate composition, seed energy, and mineral contents of the harvested seeds, with the most significant positive impact was observed at 0.5% concentration of algal extract. These findings demonstrate the successful and safe utilization of extracts from C. vulgaris, N. salina, and A. platensis at concentrations up to 1.0% as bio-stimulants to enhance common bean yields and improve the nutritional quality of dried beans for consumers.
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Affiliation(s)
| | - Kholoud Osama
- Botany and Microbiology Department, Faculty of Science, Helwan University, Helwan, Egypt
| | | | - Eman Zakaria Ahmed
- Botany and Microbiology Department, Faculty of Science, Helwan University, Helwan, Egypt.
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Spirulina platensis Foliar Spraying Curcuma longa Has Improved Growth, Yield, and Curcuminoid Biosynthesis Gene Expression, as Well as Curcuminoid Accumulation. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8060469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The application of Spirulina platensis aqueous extract (SAE) in foliar spraying has been shown to promote plant growth and yield, as well as to modify the compositions of bioactive chemicals in various plant species. Curcuma longa is an antioxidant-rich medicinal herb that is used as a spice and culinary additive. The application of a natural plant growth enhancer, SAE, to C. longa plants was used in this study to test the effect of SAE for increasing active chemical production. The effects of SAE on the growth, yield and chemical composition of C. longa were investigated. SAE boosted the C. longa growth, yield and curcuminoid content, with SAE at 2 g/L having the most impact. The CURS-1, -2, -3 and DCS genes were found to be differentially elevated by SAE treatments in this investigation. When the plant was sprayed with SAE at 2 g/L, the curcuminoid content (bisdemethoxycurcumin, dimethoxycurcumin and curcumin) increased, which corresponded with the curcuminoid gene’s expression level.
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El-Yazied AA, Ibrahim MFM, Ibrahim MAR, Nasef IN, Al-Qahtani SM, Al-Harbi NA, Alzuaibr FM, Alaklabi A, Dessoky ES, Alabdallah NM, Omar MMA, Ibrahim MTS, Metwally AA, Hassan KM, Shehata SA. Melatonin Mitigates Drought Induced Oxidative Stress in Potato Plants through Modulation of Osmolytes, Sugar Metabolism, ABA Homeostasis and Antioxidant Enzymes. PLANTS (BASEL, SWITZERLAND) 2022; 11:1151. [PMID: 35567152 PMCID: PMC9104148 DOI: 10.3390/plants11091151] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 05/05/2023]
Abstract
The effect of melatonin (MT) on potato plants under drought stress is still unclear in the available literature. Here, we studied the effect of MT as a foliar application at 0, 0.05, 0.1, and 0.2 mM on potato plants grown under well-watered and drought stressed conditions during the most critical period of early tuberization stage. The results indicated that under drought stress conditions, exogenous MT significantly (p ≤ 0.05) improved shoot fresh weight, shoot dry weight, chlorophyll (Chl; a, b and a + b), leaf relative water content (RWC), free amino acids (FAA), non-reducing sugars, total soluble sugars, cell membrane stability index, superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (G-POX), and ascorbate peroxidase (APX) compared to the untreated plants. Meanwhile, carotenoids, proline, methylglyoxal (MG), H2O2, lipid peroxidation (malondialdehyde; MDA) and abscisic acid (ABA) were significantly decreased compared to the untreated plants. These responses may reveal the protective role of MT against drought induced carbonyl/oxidative stress and enhancing the antioxidative defense systems. Furthermore, tuber yield was differentially responded to MT treatments under well-watered and drought stressed conditions. Since, applied-MT led to an obvious decrease in tuber yield under well-watered conditions. In contrast, under drought conditions, tuber yield was substantially increased by MT-treatments up to 0.1 mM. These results may imply that under water deficiency, MT can regulate the tuberization process in potato plants by hindering ABA transport from the root to shoot system, on the one hand, and by increasing the non-reducing sugars on the other hand.
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Affiliation(s)
- Ahmed Abou El-Yazied
- Department of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (A.A.E.-Y.); (A.A.M.); (K.M.H.)
| | - Mohamed F. M. Ibrahim
- Department of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt;
| | - Mervat A. R. Ibrahim
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (M.A.R.I.); (M.M.A.O.); (M.T.S.I.)
| | - Ibrahim N. Nasef
- Department of Horticulture, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt;
| | - Salem Mesfir Al-Qahtani
- Biology Department, University College of Tayma, Tabuk University, P.O. Box 741, Tabuk 47512, Saudi Arabia; (S.M.A.-Q.); (N.A.A.-H.)
| | - Nadi Awad Al-Harbi
- Biology Department, University College of Tayma, Tabuk University, P.O. Box 741, Tabuk 47512, Saudi Arabia; (S.M.A.-Q.); (N.A.A.-H.)
| | - Fahad Mohammed Alzuaibr
- Department of Biology, Faculty of Science, University of Tabuk, P.O. Box 741, Tabuk 71491, Saudi Arabia;
| | - Abdullah Alaklabi
- Department of Biology, Faculty of Science, University of Bisha, P.O. Box 551, Bisha 61922, Saudi Arabia;
| | - Eldessoky S. Dessoky
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Nadiyah M. Alabdallah
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia;
| | - Mohamed M. A. Omar
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (M.A.R.I.); (M.M.A.O.); (M.T.S.I.)
| | - Mariam T. S. Ibrahim
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (M.A.R.I.); (M.M.A.O.); (M.T.S.I.)
| | - Amr A. Metwally
- Department of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (A.A.E.-Y.); (A.A.M.); (K.M.H.)
| | - Karim. M. Hassan
- Department of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt; (A.A.E.-Y.); (A.A.M.); (K.M.H.)
| | - Said A. Shehata
- Department of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt;
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Hassanein RA, Hussein OS, Abdelkader AF, Farag IA, Hassan YE, Ibrahim M. Metabolic activities and molecular investigations of the ameliorative impact of some growth biostimulators on chilling-stressed coriander (Coriandrum sativum L.) plant. BMC PLANT BIOLOGY 2021; 21:361. [PMID: 34364372 PMCID: PMC8349021 DOI: 10.1186/s12870-021-03021-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 05/10/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND Priming of seed prior chilling is regarded as one of the methods to promote seeds germination, whole plant growth, and yield components. The application of biostimulants was reported as beneficial for protecting many plants from biotic or abiotic stresses. Their value was as important to be involved in improving the growth parameters of plants. Also, they were practiced in the regulation of various metabolic pathways to enhance acclimation and tolerance in coriander against chilling stress. To our knowledge, little is deciphered about the molecular mechanisms underpinning the ameliorative impact of biostimulants in the context of understanding the link and overlap between improved morphological characters, induced metabolic processes, and upregulated gene expression. In this study, the ameliorative effect(s) of potassium silicate, HA, and gamma radiation on acclimation of coriander to tolerate chilling stress was evaluated by integrating the data of growth, yield, physiological and molecular aspects. RESULTS Plant growth, yield components, and metabolic activities were generally diminished in chilling-stressed coriander plants. On the other hand, levels of ABA and soluble sugars were increased. Alleviation treatment by humic acid, followed by silicate and gamma irradiation, has notably promoted plant growth parameters and yield components in chilling-stressed coriander plants. This improvement was concomitant with a significant increase in phytohormones, photosynthetic pigments, carbohydrate contents, antioxidants defense system, and induction of large subunit of RuBisCO enzyme production. The assembly of Toc complex subunits was maintained, and even their expression was stimulated (especially Toc75 and Toc 34) upon alleviation of the chilling stress by applied biostimulators. Collectively, humic acid was the best the element to alleviate the adverse effects of chilling stress on growth and productivity of coriander. CONCLUSIONS It could be suggested that the inducing effect of the pretreatments on hormonal balance triggered an increase in IAA + GA3/ABA hormonal ratio. This ratio could be linked and engaged with the protection of cellular metabolic activities from chilling injury against the whole plant life cycle. Therefore, it was speculated that seed priming in humic acid is a powerful technique that can benefit the chilled along with non-chilled plants and sustain the economic importance of coriander plant productivity.
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Affiliation(s)
- Raifa A Hassanein
- Department of Botany, Faculty of Science, Ain Shams University, Cairo, 11355, Egypt
| | - Omaima S Hussein
- Department of Natural Products, National Center for Radiation Research and Technology, Atomic Energy Authority, P.O. 29, Cairo, Nasr City, Egypt
| | - Amal F Abdelkader
- Department of Botany, Faculty of Science, Ain Shams University, Cairo, 11355, Egypt
| | - Iman A Farag
- Department of Natural Products, National Center for Radiation Research and Technology, Atomic Energy Authority, P.O. 29, Cairo, Nasr City, Egypt
| | - Yousra E Hassan
- Department of Natural Products, National Center for Radiation Research and Technology, Atomic Energy Authority, P.O. 29, Cairo, Nasr City, Egypt
| | - Mohamed Ibrahim
- Department of Botany, Faculty of Science, Ain Shams University, Cairo, 11355, Egypt.
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Alharbi BM, Abdulmajeed AM, Hassan H. Biochemical and Molecular Effects Induced by Triacontanol in Acquired Tolerance of Rice to Drought Stress. Genes (Basel) 2021; 12:1119. [PMID: 34440293 PMCID: PMC8391767 DOI: 10.3390/genes12081119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 01/30/2023] Open
Abstract
To assess the effect of triacontanol (TRIA) on rice plants grown under normal or drought conditions, rice seeds were presoaked in TRIA (35 ppm) for two hours. After 20 days of sowing, rice seedlings developed from TRIA-treated or untreated seeds were subjected to drought stress. After 10 days of plant exposure to drought stress, data of major growth attributes and the content of photosynthetic pigments were recorded. Moreover, the effect of drought stress on stomatal conductance and the photochemical efficiency of PSII (Fv/Fm) were followed. The data obtained indicated that the species of rice (Oryza sativa L.) cultivar Giza 177 under investigation was sensitive to drought stress where there were significant decreases in the fresh and dry weights of shoots and roots and in stomatal conductance, as well as in the content of chlorophyll a, chlorophyll b, and carotenoids. Seed priming with TRIA enhanced both growth and acquired plant tolerance to drought stress. Thus, TRIA via the enhancement of stomatal conductance through the regulation of stomatal closure, the rate of water loss, ABA metabolism, the accumulation of osmolytes, and the regulation of aquaporins genes improved the water status of plants grown under water scarcity. Moreover, TRIA via increasing the content of free amino acids and sugars under drought stress may increase the chance of plant tissues to retain more water under scarcity conditions.
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Affiliation(s)
- Basmah M. Alharbi
- Biology Department, Faculty of Science, University of Tabuk, Tabuk 71421, Saudi Arabia;
| | | | - Heba Hassan
- Botany Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
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Mathew BT, Torky Y, Amin A, Mourad AHI, Ayyash MM, El-Keblawy A, Hilal-Alnaqbi A, AbuQamar SF, El-Tarabily KA. Halotolerant Marine Rhizosphere-Competent Actinobacteria Promote Salicornia bigelovii Growth and Seed Production Using Seawater Irrigation. Front Microbiol 2020; 11:552. [PMID: 32308651 PMCID: PMC7145952 DOI: 10.3389/fmicb.2020.00552] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 03/13/2020] [Indexed: 12/12/2022] Open
Abstract
Salicornia bigelovii is a promising halophytic cash crop that grows in seawater of the intertidal zone of the west-north coast of the UAE. This study assess plant growth promoting (PGP) capabilities of halotolerant actinobacteria isolated from rhizosphere of S. bigelovii to be used as biological inoculants on seawater-irrigated S. bigelovii plants. Under laboratory conditions, a total of 39 actinobacterial strains were isolated, of which 22 were tolerant to high salinity (up to 8% w/v NaCl). These strains were further screened for their abilities to colonize S. bigelovii roots in vitro; the most promising ones that produced indole-3-acetic acid, polyamines (PA) or 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase (ACCD) were selected for rhizosphere-competency under naturally competitive environment. Three outstanding rhizosphere-competent isolates, Streptomyces chartreusis (Sc), S. tritolerans (St), and S. rochei (Sr) producing auxins, PA and ACCD, respectively, were investigated individually and as consortium (Sc/St/Sr) to determine their effects on the performance of S. bigelovii in the greenhouse. Individual applications of strains on seawater-irrigated plants significantly enhanced shoot and root dry biomass by 32.3-56.5% and 42.3-71.9%, respectively, in comparison to non-inoculated plants (control). In addition, plants individually treated with Sc, St and Sr resulted in 46.1, 60.0, and 69.1% increase in seed yield, respectively, when compared to control plants. Thus, the synergetic combination of strains had greater effects on S. bigelovii biomass (62.2 and 77.9% increase in shoot and root dry biomass, respectively) and seed yield (79.7% increase), compared to the control treatment. Our results also showed significant (P < 0.05) increases in the levels of photosynthetic pigments, endogenous auxins and PA, but a reduction in the levels of ACC in tissues of plants inoculated with Sc/St/Sr. We conclude that the consortium of isolates was the most effective treatment on S. bigelovii growth; thus confirmed by principal component and correlation analyses. To this best of our knowledge, this is the first report about halotolerant rhizosphere-competent PGP actinobacteria thriving in saline soils that can potentially contribute to promoting growth and increasing yield of S. bigelovii. These halotolerant actinobacterial strains could potentially be exploited as biofertilizers to sustain crop production in arid coastal areas.
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Affiliation(s)
- Betty T. Mathew
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Yaser Torky
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Amr Amin
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Abdel-Hamid I. Mourad
- Department of Mechanical Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Mutamed M. Ayyash
- Department of Food, Nutrition and Health Sciences, College of Food and Agriculture, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Ali El-Keblawy
- Department of Applied Biology, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Synan F. AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, United Arab Emirates
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al-Ain, United Arab Emirates
- College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA, Australia
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10
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Bahmani R, Modareszadeh M, Bihamta MR. Genotypic variation for cadmium tolerance in common bean (Phaseolus vulgaris L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110178. [PMID: 31927193 DOI: 10.1016/j.ecoenv.2020.110178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/03/2020] [Accepted: 01/05/2020] [Indexed: 06/10/2023]
Abstract
Given the limitation of crop production in Cd-polluted areas, the identification and selection of plant genotypes tolerant to Cd stress are of great significance. In the present work, we show the existence of genotypic variation for Cd tolerance in common bean. The laboratory screening of 25 bean genotypes indicated a significant positive correlation of the mean productivity (MP) and the geometric mean productivity (GMP) with plant fresh weight both in control and Cd-treated plants. A principal component analysis further confirmed this variation and, together with other analyses, led to the selection of genotypes G-11867, Taylor, Emerson, and D-81083 as tolerant genotypes. A total of six bean genotypes with different degrees of Cd tolerance were selected, and their long-term physiological responses to Cd (0, 45, and 90 mg/kg soil) were evaluated. Increasing Cd concentrations led to higher Cd accumulation both in roots and shoots, and to significant rises in the levels of the oxidative stress biomarkers malondialdehyde (MDA), dityrosine (D-T), and 8-hydroxy-2'-deoxyguanosine (8-OH-2'-dG). Remarkable reductions in plant hormone levels and chlorophyll contents, as well as in dry and fresh weight, were observed in Cd-treated plants. Among the examined genotypes, Emerson, Taylor, and G-11867 were found to be more tolerant to Cd owing to lower Cd accumulation and lower oxidative stress levels, as well as higher chlorophyll and hormone contents. Our results contribute to the understanding of the physiological and biochemical basis of Cd tolerance in bean plants and may therefore, be useful for breeding programs directed towards obtaining bean varieties showing low Cd accumulation.
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Affiliation(s)
- Ramin Bahmani
- School of Biological Sciences, Seoul National University, Seoul, 08826, South Korea.
| | - Mahsa Modareszadeh
- Department of Molecular Biology, Sejong University, Seoul, 143-747, South Korea
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11
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Liu G, Liu J, Pei W, Li X, Wang N, Ma J, Zang X, Zhang J, Yu S, Wu M, Yu J. Analysis of the MIR160 gene family and the role of MIR160a_A05 in regulating fiber length in cotton. PLANTA 2019; 250:2147-2158. [PMID: 31620865 DOI: 10.1007/s00425-019-03271-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 09/05/2019] [Indexed: 05/20/2023]
Abstract
The MIR160 family in Gossypium hirsutum and G. barbadense was characterized, and miR160a_A05 was found to increase cotton-fiber length by downregulating its target gene (ARF17) and several GH3 genes. Cotton fiber is the most important raw material for the textile industry. MicroRNAs are involved in regulating cotton-fiber development, but a role in fiber elongation has not been demonstrated. In this study, miR160a was found to be differentially expressed in elongating fibers between two interspecific (between Gossypium hirsutum and G. barbadense) backcross inbred lines (BILs) with different fiber lengths. The gene MIR160 colocalized with a previously mapped fiber-length quantitative trait locus. Its target gene ARF17 was differentially expressed between the two BILs during fiber elongation, but in the inverse fashion. Bioinformatics was used to analyze the MIR160 family in both G. hirsutum and G. barbadense. Moreover, qRT-PCR analysis identified MIR160a as the functional MIR160 gene encoding the miR160a precursor during fiber elongation. Using virus-induced gene silencing and overexpression, overexpressed MIR160a_A05 resulted in significantly longer fibers compared with wild type, whereas suppression of miR160 resulted in significantly shorter fibers. Expression levels of the target gene auxin-response factor 17 (ARF17) and related genes GH3 in the two BILs and/or the virus-infected plants demonstrated similar changes in response to modulation of miR160a level. Finally, overexpression or suppression of miR160 increased or decreased, respectively, the cellular level of indole-3-acetic acid, which is involved in fiber elongation. These results describe a specific regulatory mechanism for fiber elongation in cotton that can be utilized for future crop improvement.
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Affiliation(s)
- Guoyuan Liu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China
| | - Ji Liu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China
| | - Wenfeng Pei
- Xinjiang Research Base, State Key Laboratory of Cotton Biology, Xinjiang Agricultural University, Urumqi, 830001, China
| | - Xihua Li
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China
| | - Nuohan Wang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China
| | - Jianjiang Ma
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China
| | - Xinshan Zang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China
| | - Jinfa Zhang
- Department of Plant and Environmental Sciences, New Mexico State University, Box 30003, Las Cruces, NM, 88003, USA
| | - Shuxun Yu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China.
| | - Man Wu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China.
| | - Jiwen Yu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Key Laboratory for Cotton Genetic Improvement, Ministry of Agriculture, Zhengzhou University, Anyang, 455000, Henan, China.
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12
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Aldesuquy H, Haroun S, Abo-Hamed S, El-Saied AW. Involvement of spermine and spermidine in the control of productivity and biochemical aspects of yielded grains of wheat plants irrigated with waste water. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.ejbas.2013.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Heshmat Aldesuquy
- Department of Botany, Faculty of Science, Mansoura University, P.O. Box 35516, Mansoura, Egypt
| | - Samia Haroun
- Department of Botany, Faculty of Science, Mansoura University, P.O. Box 35516, Mansoura, Egypt
| | - Samy Abo-Hamed
- Department of Botany, Faculty of Science, Mansoura University, P.O. Box 35516, Mansoura, Egypt
| | - Abdel-Whab El-Saied
- Department of Botany, Faculty of Science, Mansoura University, P.O. Box 35516, Mansoura, Egypt
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13
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Abd El-Naby ZM, Hafez WAEK, Hashem HA. Remediation of salt-affected soil by natural and chemical amendments to improve berseem clover yield and nutritive quality. AFRICAN JOURNAL OF RANGE & FORAGE SCIENCE 2019; 36:49-60. [DOI: 10.2989/10220119.2018.1518929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 08/25/2018] [Accepted: 08/29/2018] [Indexed: 09/01/2023]
Affiliation(s)
| | | | - Hanan Ahmed Hashem
- Botany Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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14
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Mohamed HI, Akladious SA. Changes in antioxidants potential, secondary metabolites and plant hormones induced by different fungicides treatment in cotton plants. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2017; 142:117-122. [PMID: 29107234 DOI: 10.1016/j.pestbp.2017.04.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 01/27/2017] [Accepted: 04/06/2017] [Indexed: 05/08/2023]
Abstract
The use of fungicides for an effective control of plant diseases has become crucial in the last decades in the agriculture system. Seeds of cotton plants were treated with systemic and contact fungicides to study the efficiency of seed dressing fungicides in controlling damping off caused by Rhizoctonia solani under greenhouse conditions and its effect on plant growth and metabolism. The results showed that Mon-cut showed the highest efficiency (67.99%) while each of Tondro and Hemixet showed the lowest efficiency (31.99%) in controlling damping off. Rhizolex T, Mon-cut and Tondro fungicides caused significant decrease in plant height, dry weight of plant, phytohormones, photosynthetic pigments, soluble sugars, soluble proteins, total free amino acids but caused significant increases in total phenols, flavonoids, antioxidant enzymes, ascorbic acid, reduced glutathione, MDA and hydrogen peroxide as compared with untreated plants. On the other hand, the other fungicides (Maxim, Hemixet and Flosan) increased all the above recorded parameters as compared with untreated plants. Our results indicated that the fungicides application could be a potential tool to increase plant growth, the antioxidative defense mechanisms and decreased infection with plant diseases.
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Affiliation(s)
- Heba Ibrahim Mohamed
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, El Makres St. Roxy, Cairo 1575, Egypt.
| | - Samia Ageeb Akladious
- Biological and Geological Sciences Department, Faculty of Education, Ain Shams University, El Makres St. Roxy, Cairo 1575, Egypt
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15
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Hu H, He X, Tu L, Zhu L, Zhu S, Ge Z, Zhang X. GhJAZ2 negatively regulates cotton fiber initiation by interacting with the R2R3-MYB transcription factor GhMYB25-like. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2016; 88:921-935. [PMID: 27419658 DOI: 10.1111/tpj.13273] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/06/2016] [Accepted: 07/13/2016] [Indexed: 05/18/2023]
Abstract
Jasmonic acid (JA) signaling has been well studied in Arabidopsis. Most reports focus on the role of JA in biological pathways, such as stress resistance, trichome initiation and anthocyanin accumulation. The JASMONATE ZIM-DOMAIN (JAZ) protein is one of the important repressors in the JA signaling pathway. Previous studies showed that JA functions in fiber initiation and elongation, but little is known about how JAZ genes function in fiber development. In this study, a cotton JAZ protein (GhJAZ2) containing a highly conserved TIFY motif and a C-terminal Jas domain was identified, and its function during cotton fiber development was analysed. Gene expression analysis showed that GhJAZ2 was preferentially expressed in the root, hypocotyl, flower and ovule 1 day before anthesis. Overexpression of GhJAZ2 inhibited both lint and fuzz fiber initiation, and reduced the fiber length. Yeast two-hybrid assays showed that GhJAZ2 interacted with the R2R3-MYB transcription factors GhMYB25-like and GhGL1, the bHLH transcription factor GhMYC2, the WD repeat protein GhWD40 and the unknown protein GhJI1. Among these transcription factors, previous studies showed that downregulation of GhMYB25-like leads to a fiberless phenotype in cotton seeds. Molecular and genetic evidence showed that the GhJAZ2 protein suppresses fiber initiation in the overexpressing lines by interacting with GhMYB25-like and suppressing GhMYB25-like activity. Our results suggested that GhJAZ2 functions as a primary transcription repressor during lint and fuzz fiber initiation by interacting with GhMYB25-like, GhGL1, GhMYC2, GhWD40 and GhJI1 to regulate the JA signaling pathway.
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Affiliation(s)
- Haiyan Hu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Xin He
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Lili Tu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Longfu Zhu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Sitao Zhu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Zonghe Ge
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
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16
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El-Batal AI, Gharib FAEL, Ghazi SM, Hegazi AZ, Hafz AGMAE. Physiological Responses of Two Varieties of Common Bean ( Phaseolus VulgarisL.) to Foliar Application of Silver Nanoparticles. NANOMATERIALS AND NANOTECHNOLOGY 2016; 6:13. [DOI: 10.5772/62202] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Affiliation(s)
- Ahmed Ibrahim El-Batal
- Drug Radiation Research Department, Biotechnology Division, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo, Egypt
| | | | - Safia Mohammed Ghazi
- Botany and Microbiology Department, Faculty of Science, Helwan University, Egypt
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17
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Sanchez SE, Cuevas DA, Rostron JE, Liang TY, Pivaroff CG, Haynes MR, Nulton J, Felts B, Bailey BA, Salamon P, Edwards RA, Burgin AB, Segall AM, Rohwer F. Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins. J Vis Exp 2015:e52854. [PMID: 26132888 PMCID: PMC4544906 DOI: 10.3791/52854] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Current investigations into phage-host interactions are dependent on extrapolating knowledge from (meta)genomes. Interestingly, 60 - 95% of all phage sequences share no homology to current annotated proteins. As a result, a large proportion of phage genes are annotated as hypothetical. This reality heavily affects the annotation of both structural and auxiliary metabolic genes. Here we present phenomic methods designed to capture the physiological response(s) of a selected host during expression of one of these unknown phage genes. Multi-phenotype Assay Plates (MAPs) are used to monitor the diversity of host substrate utilization and subsequent biomass formation, while metabolomics provides bi-product analysis by monitoring metabolite abundance and diversity. Both tools are used simultaneously to provide a phenotypic profile associated with expression of a single putative phage open reading frame (ORF). Representative results for both methods are compared, highlighting the phenotypic profile differences of a host carrying either putative structural or metabolic phage genes. In addition, the visualization techniques and high throughput computational pipelines that facilitated experimental analysis are presented.
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Affiliation(s)
| | - Daniel A Cuevas
- Computational Science Research Center, San Diego State University
| | | | - Tiffany Y Liang
- Bioinformatics and Medical Informatics Research Center, San Diego State University
| | | | | | - Jim Nulton
- Department of Mathematics and Statistics, San Diego State University
| | - Ben Felts
- Department of Mathematics and Statistics, San Diego State University
| | - Barbara A Bailey
- Department of Mathematics and Statistics, San Diego State University
| | - Peter Salamon
- Department of Mathematics and Statistics, San Diego State University
| | - Robert A Edwards
- Department of Biology, San Diego State University; Department of Computer Science, San Diego State University; Mathematics and Computer Science Division, Argonne National Laboratory
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18
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Zayed EM, Abd Elbar OH. Morphogenesis of immature female inflorescences of date palm in vitro. ANNALS OF AGRICULTURAL SCIENCES 2015; 60:113-120. [DOI: 10.1016/j.aoas.2015.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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19
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Talaat IM, Khattab HI, Ahmed AM. Changes in growth, hormones levels and essential oil content of Ammi visnaga L. plants treated with some bioregulators. Saudi J Biol Sci 2014; 21:355-65. [PMID: 25183946 PMCID: PMC4150225 DOI: 10.1016/j.sjbs.2013.10.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 10/28/2013] [Accepted: 10/31/2013] [Indexed: 11/19/2022] Open
Abstract
The effects of foliar application of different concentrations of amino acids (tyrosine and phenylalanine) and phenolic acids (trans-cinnamic acid, benzoic acid and salicylic acid) on growth, pigment content, hormones levels and essential oil content of Ammi visnaga L were carried out during two successive seasons. It is clear that foliar application of either amino acids or phenolics significantly promoted the growth parameters in terms of shoot height, fresh and dry biomass, number of branches and number of umbels per plant. The increment of growth parameter was associated with elevated levels of growth promoters (IAA, GA3, total cytokinins) and low level of ABA. The greatest increase in the previously mentioned parameters was measured in plants exposed to different concentrations of phenols particularly in benzoic acid-treated plants. Such effect was concentration dependent. All treatments led to significant increments in yield seeds and oil content. Moreover, gas liquid chromatographic analysis revealed that the main identified components of essential oil were 2,2-dimethyl butanoic acid, isobutyl isobutyrate, α-isophorone, thymol, fenchyl acetate and linalool. Phenolics and amino acid treatments resulted in qualitative differences in these components of essential oil.
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Affiliation(s)
- Iman M. Talaat
- Botany Department, National Research Centre, Cairo, Egypt
| | - Hemmat I. Khattab
- Botany Department, Faulty of Science, Ain-Shams University, Cairo, Egypt
| | - Aisha M. Ahmed
- Botany Department, National Research Centre, Cairo, Egypt
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20
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Areco VA, Figueroa S, Cosa MT, Dambolena JS, Zygadlo JA, Zunino MP. Effect of pinene isomers on germination and growth of maize. BIOCHEM SYST ECOL 2014. [DOI: 10.1016/j.bse.2014.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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21
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Abdelgawad ZA, Khalafaallah AA, Abdallah MM. Impact of Methyl Jasmonate on Antioxidant Activity and Some Biochemical Aspects of Maize Plant Grown under Water Stress Condition. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/as.2014.512117] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Selim A, Zayed M, Zayed M. Magnetic field treated water effects on germination, growth and physio-chemical aspects of some economic plants. ACTA ACUST UNITED AC 2013. [DOI: 10.1556/abot.55.2013.1-2.7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Hao J, Tu L, Hu H, Tan J, Deng F, Tang W, Nie Y, Zhang X. GbTCP, a cotton TCP transcription factor, confers fibre elongation and root hair development by a complex regulating system. JOURNAL OF EXPERIMENTAL BOTANY 2012; 63:6267-81. [PMID: 23105133 PMCID: PMC3481214 DOI: 10.1093/jxb/ers278] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
As the most important natural raw material for textile industry, cotton fibres are an excellent model for studying single-cell development. Although expression profiling and functional genomics have provided some data, the mechanism of fibre development is still not well known. A class I TCP transcription factor (designated GbTCP), encoding 344 amino acids, was isolated from the normalized cDNA library of sea-island cotton fibre (from -2 to 25 days post anthesis). GbTCP was preferentially expressed in the elongating cotton fibre from 5 to 15 days post anthesis. Some expression was also observed in stems, apical buds, and petals. RNAi silencing of GbTCP produced shorter fibre, a reduced lint percentage, and a lower fibre quality than the wild-type plants. Overexpression of GbTCP enhanced root hair initiation and elongation in Arabidopsis and regulated branching. Solexa sequencing and Affymetrix GeneChip analysis indicated that GbTCP positively regulates the level of jasmonic acid (JA) and, as a result, activates downstream genes (reactive oxygen species, calcium signalling, ethylene biosynthesis and response, and several NAC and WRKY transcription factors) necessary for elongation of fibres and root hairs. JA content analysis in cotton also confirmed that GbTCP has a profound effect on JA biosynthesis. In vitro ovule culture showed that an appropriate concentration of JA promoted fibre elongation. The results suggest that GbTCP is an important transcription factor for fibre and root hair development by regulating JA biosynthesis and response and other pathways, including reactive oxygen species, calcium channel and ethylene signalling.
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Affiliation(s)
- Juan Hao
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Lili Tu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Haiyan Hu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Jiafu Tan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Fenglin Deng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Wenxin Tang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Yichun Nie
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
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Chen J, Huang B, Li Y, Du H, Gu Y, Liu H, Zhang J, Huang Y. Synergistic influence of sucrose and abscisic acid on the genes involved in starch synthesis in maize endosperm. Carbohydr Res 2011; 346:1684-91. [PMID: 21640984 DOI: 10.1016/j.carres.2011.05.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 04/20/2011] [Accepted: 05/03/2011] [Indexed: 11/27/2022]
Abstract
Starch is the major carbon reserve in plant storage organs, the synthesis of which is orchestrated by four major enzymes, ADP-glucose pyrophosphorylase, starch synthase, starch-branching enzyme and starch-debranching enzyme. There is much information available on the function of these key enzymes; however, little is known about their transcriptional regulation. In order to understand the transcriptional regulation of starch biosynthesis, the expression profiles of 24 starch genes were investigated in this work. The results showed major transcriptional changes for 15 of the 24 starch genes observed in maize endosperm, most of which are elevated at the early and middle stages of the developing endosperm. Sucrose, abscisic acid (ABA) and indole-3-acetic acid (IAA) had a significant correlation with the expression of 15 genes, indicating that sugars and phytohormones might take part in the regulation of starch synthesis. Also, we found that there is interaction of abscisic acid and sucrose on the regulation of the expression of these genes.
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Affiliation(s)
- Jiang Chen
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
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25
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Gamma Irradiation Regulation of Nitrate Level in Rocket (Eruca vesicaria subsp. sativa) Plants. ACTA ACUST UNITED AC 2008. [DOI: 10.1300/j153v08n01_08] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Lee JJ, Woodward AW, Chen ZJ. Gene expression changes and early events in cotton fibre development. ANNALS OF BOTANY 2007; 100:1391-401. [PMID: 17905721 PMCID: PMC2759220 DOI: 10.1093/aob/mcm232] [Citation(s) in RCA: 221] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2007] [Accepted: 08/01/2007] [Indexed: 05/17/2023]
Abstract
BACKGROUND Cotton is the dominant source of natural textile fibre and a significant oil crop. Cotton fibres, produced by certain species in the genus Gossypium, are seed trichomes derived from individual cells of the epidermal layer of the seed coat. Cotton fibre development is delineated into four distinct and overlapping developmental stages: fibre initiation, elongation, secondary wall biosynthesis and maturation. SCOPE Recent advances in gene expression studies are beginning to provide new insights into a better understanding of early events in cotton fibre development. Fibre cell development is a complex process involving many pathways, including various signal transduction and transcriptional regulation components. Several analyses using expressed sequence tags and microarray have identified transcripts that preferentially accumulate during fibre development. These studies, as well as complementation and overexpression experiments using cotton genes in arabidopsis and tobacco, indicate some similar molecular events between trichome development from the leaf epidermis and fibre development from the ovule epidermis. Specifically, MYB transcription factors regulate leaf trichome development in arabidopsis and may regulate seed trichome development in cotton. In addition, transcript profiling and ovule culture experiments both indicate that several phytohormones and other signalling pathways mediate cotton fibre development. Auxin and gibberellins promote early stages of fibre initiation; ethylene- and brassinosteroid-related genes are up-regulated during the fibre elongation phase; and genes associated with calmodulin and calmodulin-binding proteins are up-regulated in fibre initials. Additional genomic data, mutant and functional analyses, and genome mapping studies promise to reveal the critical factors mediating cotton fibre cell development.
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Affiliation(s)
- Jinsuk J. Lee
- Sections of Molecular Cell and Developmental Biology
- Center for Computational Biology and Bioinformatics
| | - Andrew W. Woodward
- Sections of Molecular Cell and Developmental Biology
- Center for Computational Biology and Bioinformatics
| | - Z. Jeffrey Chen
- Sections of Molecular Cell and Developmental Biology
- Integrative Biology
- Center for Computational Biology and Bioinformatics
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, One University Station A4800, Austin, TX 78712, USA
- For correspondence. E-mail
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27
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. SAEK, . MMS. The Allelopathic Potentialities of Acacia nilotica and Eucalyptus rostrata on Monocot (Zea mays L.) and Dicot (Phaseolus vulgaris L.) Plants. ACTA ACUST UNITED AC 2004. [DOI: 10.3923/biotech.2005.23.34] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Aldesuquy HS, Haroun SA, Abo-Hamed SA, El-Saied AA. Ameliorating effect of kinetin on pigments, photosynthetic characteristics, carbohydrate contents and productivity of cadmium treatedSorghum bicolorplants. ACTA ACUST UNITED AC 2004. [DOI: 10.1556/abot.46.2004.1-2.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Aldesuquy HS, Mansour FA, Abo-Hamed SA. Effect of the culture filtrates ofStreptomyces on growth and productivity of wheat plants. Folia Microbiol (Praha) 1998. [DOI: 10.1007/bf02820792] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Sundberg B, Sandberg G, Jensen E. Identification and Quantification of Indole-3-methanol in Etiolated Seedlings of Scots Pine (Pinus sylvestris L.). PLANT PHYSIOLOGY 1985; 77:952-5. [PMID: 16664170 PMCID: PMC1064639 DOI: 10.1104/pp.77.4.952] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Combined gas chromatography-mass spectrometry has been used to identify indole-3-methanol in a purified buffer extract from etiolated seedlings of Pinus sylvestris L. Quantitative estimates obtained by high performance liquid chromatography with fluorescence detection, corrected for losses occurring during purification, indicated that etiolated seedlings of P. sylvestris contained 19.7 +/- 1.4 nanograms (+/- standard deviation) indole-3-methanol per gram fresh weight. The stability of indole-3-methanol at different pH levels was investigated. The rate of conversion, to a less polar unidentified substance, was enhanced with increasing acidity.
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Affiliation(s)
- B Sundberg
- Department of Forest Genetics and Plant Physiology, The Swedish University of Agricultural Sciences, S-901 83 Umeå, Sweden
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Saftner RA, Wyse RE. Effect of plant hormones on sucrose uptake by sugar beet root tissue discs. PLANT PHYSIOLOGY 1984; 74:951-5. [PMID: 16663540 PMCID: PMC1066799 DOI: 10.1104/pp.74.4.951] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Abscisic acid (ABA), auxins, cytokinins, gibberellic acid, alone or in combination were tested for their effects on short-term sucrose uptake in sugar beet (Beta vulgaris cv USH-20) roots. The effect of ABA on active sucrose uptake varied from no effect to the more generally observed 1.4-to 3.0-fold stimulation. A racemic mixture of ABA and its trans isomer were more stimulatory than ABA alone. Pretreating and/or simultaneously treating the tissue with K(+) or IAA prevented the ABA response while cytokinins and gibberellic acid did not. While the variable sensitivities of beet root to ABA may somehow be related to the auxin and alkali cation status of the tissue, tissue sensitivity to ABA was not correlated with ABA uptake, accumulation, or metabolic patterns. In contrast to ABA, indoleacetic acid (IAA) and other auxins strongly inhibited active sucrose uptake in beet roots. Cytokinins enhanced the auxin-induced inhibition of sucrose uptake but ABA and gibberellic acid did not modify or counteract the auxin effect. Trans-zeatin, benzyladenine, kinetin, and gibberellins had no effect on active sucrose uptake. None of the hormones or hormone mixtures tested had any significant effect on passive sucrose uptake. The effects of IAA and ABA on sucrose uptake were detectable within 1 h suggesting a rather close relationship between the physiological activities of IAA and ABA and the operation of the active transport system.
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Affiliation(s)
- R A Saftner
- United States Department of Agriculture, Agricultural Research Service, Plant Hormone Laboratory, Beltsville, Maryland 20705
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32
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Determination of indole-3-acetic acid and abscisic acid in Japanese chestnuts by column chromatography on sephadex G-10 and reversed-phase high-performance liquid chromatography. J Chromatogr A 1984. [DOI: 10.1016/s0021-9673(01)87680-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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34
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35
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Vold BS. Production and characterization of antibodies and establishment of a radioimmunoassay for ribosylzeatin. PLANT PHYSIOLOGY 1981; 67:401-3. [PMID: 16661682 PMCID: PMC425693 DOI: 10.1104/pp.67.3.401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
An antibody directed towards ribosyl-trans-zeatin has been produced and characterized. The antiserum was produced in rabbits using ribosyl-zeatin-bovine serum albumin as an immunogen. A radioimmunoassay which employed this antiserum and a tritiated antigen was established. As little as 10 picomoles ribosyl-trans-zeatin could be detected. The specificity of the antiserum was measured in the radioimmunoassay by using nonradioactive nucleosides as competitive inhibitors. Changes in position N(6) were more effective in decreasing antibody recognition than changes in position 2. Of particular interest was the interaction of the isomer ribosyl-cis-zeatin. This compound was significantly less active as an inhibitor than ribosyl-trans-zeatin, demonstrating that the antibody was sensitive to minor changes in the structure of the antigen.The use of this antibody and the radioimmunoassay for ribosylzeatin provides a rapid method for the detection of ribosylzeatin, as well as offering the potential for immunoadsorbent columns which would be useful in the purification of macromolecules, such as tRNA, which contain the ribosylzeatin moiety.
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Affiliation(s)
- B S Vold
- Department of Microbiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico 87131
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36
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Arteca RN, Poovaiah BW, Smith OE. Use of High Performance Liquid Chromatography for the Determination of Endogenous Hormone Levels in Solanum tuberosum L. Subjected to Carbon Dioxide Enrichment of the Root Zone. PLANT PHYSIOLOGY 1980; 65:1216-9. [PMID: 16661363 PMCID: PMC440513 DOI: 10.1104/pp.65.6.1216] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Changes in cytokinin, auxin, and abscisic acid levels were determined by high performance liquid chromatography following CO(2) enrichment of the root zone. Both trans zeatin and zeatin riboside significantly decreased in the roots 6 days after treatment with CO(2). In the leaves zeatin riboside increased whereas trans zeatin showed no significant difference from the control. Indoleacetic acid in the leaves increased dramatically for 6 days following CO(2) treatment; however, indoleacetic acid levels in the roots increased slightly after 2 days and remained higher than the control. Abscisic acid increased shortly after CO(2) treatments; after 6 days this difference was no longer evident.
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Affiliation(s)
- R N Arteca
- Department of Horticulture and Landscape Architecture, Washington State University, Pullman, Washington 99164
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37
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38
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Summons RE, Duke CC, Eichholzer JV, Entsch B, Letham DS, MacLeod JK, Parker CW. Mass spectrometric analysis of cytokinins in plant tissues. II—Quantitation of cytokinins inZea mays kernels using deuterium labelled standards. ACTA ACUST UNITED AC 1979. [DOI: 10.1002/bms.1200060908] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Mauk CS, Langille AR. Physiology of Tuberization in Solanum tuberosum L: cis-Zeatin Riboside in the Potato Plant: Its Identification and Changes in Endogenous Levels as Influenced by Temperature and Photoperiod. PLANT PHYSIOLOGY 1978; 62:438-42. [PMID: 16660533 PMCID: PMC1092142 DOI: 10.1104/pp.62.3.438] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Using high pressure liquid chromatography, the cucumber cotyledon bioassay, and mass spectrometry a cytokinin isolated from Solanum tuberosum L. cv. Katahdin plant tissues has been identified as cis-zeatin riboside. Zeatin riboside (ZR) levels in plants grown under inducing conditions (28 C day and 13 C night with a 10-hour photoperiod) were significantly higher than those in plants grown under noninducing conditions (30 C day and 28 C night with an 18-hour photoperiod). The highest level of ZR was noted in below-ground tissue after 4 days exposure to inducing conditions, with tuber initiation observed after 8 days. A companion study conducted to determine the effect of ZR on in vitro tuberization of noninduced rhizomes revealed that after 1 month in culture, controls exhibited 0% tuberization, while ZR treatments of 0.3 and 3.0 milligrams per liter showed 39 and 75% tuberization, respectively.
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Affiliation(s)
- C S Mauk
- Department of Plant and Soil Sciences, University of Maine, Orono, Maine 04473
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40
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Sweetser PB, Swartzfager DG. Indole-3-acetic Acid Levels of Plant Tissue as Determined by a New High Performance Liquid Chromatographic Method. PLANT PHYSIOLOGY 1978; 61:254-8. [PMID: 16660271 PMCID: PMC1091843 DOI: 10.1104/pp.61.2.254] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A method for the analysis of indole-3-acetic acid (IAA) in plant extracts has been developed based on high performance liquid chromatography separation of IAA on a microparticulate strong anion exchange column followed by quantitation with two selective detectors: an electrochemical, carbon paste amperometric detector and/or a fluorescence detector. The detection limit for IAA is less than 1 nanogram with the fluorescence detector and less than 50 picograms with the electrochemical detector.The IAA levels are reported for various tissues of wheat, pinto beans, soybeans, cotton, and corn.
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Affiliation(s)
- P B Sweetser
- E. I. du Pont de Nemours and Company, Central Research and Development Department, Experimental Station, Wilmington, Delaware 19898
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41
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Tisserat B, Murashige T. Probable indentity of substances in citrus that repress asexual embryogenesis. IN VITRO 1977; 13:785-9. [PMID: 590971 DOI: 10.1007/bf02627858] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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42
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Gas Chromatographic Identification and Quantitative Estimation of Natural Auxins in Developing Plant Organs. ACTA ACUST UNITED AC 1977. [DOI: 10.1007/978-3-642-66589-9_9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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43
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Beutelmann P, Bauer L. Purification and identification of a cytokinin from moss callus cells. PLANTA 1977; 133:215-217. [PMID: 24425252 DOI: 10.1007/bf00380679] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/1976] [Accepted: 09/20/1976] [Indexed: 06/03/2023]
Abstract
A cytokinin was isolated from the culture medium of callus cells of the moss hybridFunaria hygrometrica (L.) Sibth xPhyscomitrium piriforme Brid. The purification procedure included ethyl-acetate extraction, silver-salt precipitation, crystallization as picrate, and ion exchange chromatography. The structure of the cytokinin was confirmed as N(6)-(Δ(2)-isopentenyl)adenine by means of gas chromatography and mass spectrometry. The concentration of the compound in the culture medium was determined at ca. 10(-6) M.
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Affiliation(s)
- P Beutelmann
- MSU/ERDA Plant Research Laboratory, 48824, East Lansing, MI, USA
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Rivier L, Milon H, Pilet PE. Gas chromatography-mass spectrometric determinations of abscisic acid levels in the cap and the apex of maize roots. PLANTA 1977; 134:23-27. [PMID: 24419574 DOI: 10.1007/bf00390089] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/1976] [Accepted: 10/26/1976] [Indexed: 06/03/2023]
Abstract
Quantitative analyses of abscisic acid (ABA) in different parts of maize root tips (Zea mays L. cv. Kelvedon 33) were performed by mass fragmentography using the hexadeuterated analog of ABA as internal standard. It was found that the cap and the apex contained 36.1 μg and 66.5 μg ABA kg(-1) fresh weight, respectively. The possibility that the growth regulator formed in the cap and inhibiting the elongation of the extending zone of the root is ABA is discussed.
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Affiliation(s)
- L Rivier
- Institute of Plant Biology and Physiology of the University, Place de la Riponne, CH-1005, Lausanne, Switzerland
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