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Guo A, Hu Y, Shi M, Wang H, Wu Y, Wang Y. Effects of iron deficiency and exogenous sucrose on the intermediates of chlorophyll biosynthesis in Malus halliana. PLoS One 2020; 15:e0232694. [PMID: 32375166 PMCID: PMC7202898 DOI: 10.1371/journal.pone.0232694] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/19/2020] [Indexed: 12/04/2022] Open
Abstract
Malus halliana is an iron (Fe)-efficient apple rootstock growing in calcareous soil that shows obvious 'greenness' traits during Fe deficiency. Recent studies have shown that exogenous sugars can be involved in abiotic stress. To identify the key regulatory steps of chlorophyll (Chl) biosynthesis in M. halliana under Fe deficiency and to verify whether exogenous sucrose (Suc) is involved in Fe deficiency stress, we determined the contents of the Chl precursor and the expression of several Chl biosynthetic genes in M. halliana. The results showed that Fe deficiency caused a significant increase in the contents of protoporphyrin IX (Proto IX), Mg-protoporphyrin IX (Mg-Proto IX) and protochlorophyllide (Pchlide) in M. halliana compared to the Fe-sensitive rootstock Malus hupehensis. Quantitative real-time PCR (RT-qPCR) also showed that the expression of protoporphyrinogen oxidase (PPOX), which synthesizes Proto IX, was upregulated in M. halliana and downregulated in M. hupehensis under Fe deficiency. Exogenous Suc application prominently enhanced the contents of porphobilinogen (PBG) and the subsequent precursor, whereas it decreased the level of δ-aminolaevulinic acid (ALA), suggesting that the transformation from ALA to PBG was catalyzed in M. halliana. Additionally, the transcript level of δ-aminolevulinate acid dehydratase (ALAD) was noticeably upregulated after exogenous Suc treatment. This result, combined with the precursor contents, indicated that Suc accelerated the steps of Chl biosynthesis by modulating the ALAD gene. Therefore, we conclude that PPOX is the key regulatory gene of M. halliana in response to Fe deficiency. Exogenous Suc enhances M. halliana tolerance to Fe deficiency stress by regulating Chl biosynthesis.
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Affiliation(s)
- Aixia Guo
- College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu, China
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou, Gansu, China
| | - Ya Hu
- College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu, China
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Science, Lanzhou, Gansu, China
| | - Mingfu Shi
- College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Hai Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Yuxia Wu
- College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Yanxiu Wang
- College of Horticulture, Gansu Agricultural University, Lanzhou, Gansu, China
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Liu Y, Liu N, Zhou Y, Wang F, Zhang Y, Wu Z. Growth and Physiological Responses in Myriophyllum spicatum L. Exposed to Linear Alkylbenzene Sulfonate. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2073-2081. [PMID: 31099934 DOI: 10.1002/etc.4475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/17/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
The exogenous organic pollutant linear alkylbenzene sulfonate (LAS) is frequently detected in water. Myriophyllum spicatum L., a submerged aquatic plant, is a popular choice for phytoremediation. The present study investigated the growth and physiological responses of M. spicatum to different concentrations of LAS (0, 0.1, 0.5, 1, 10, 50, 100, and 500 mg/L) after 14 and 28 d of treatment. After 14 d, higher LAS doses (50-100 mg/L) significantly reduced the growth of M. spicatum compared with controls. Plants died at 500 mg/L LAS. Chlorophyll a and total chlorophyll contents were markedly increased at higher doses of LAS (10-100 mg/L). Significantly enhanced peroxidase (POD) activity was found at 50 mg/L of LAS, and decreased superoxide dismutase (SOD) activity at 100 mg/L of LAS; other indices showed no significant changes under LAS stress. After 28 d, no significant effect was observed on the growth of plants exposed to LAS doses of 0.1 to 100 mg/L, whereas plants died at 500 mg/L LAS. Compared with controls. SOD activity increased significantly at 0.1 mg/L LAS and maintained the same level as controls at higher concentrations. At all LAS exposures, POD activity was higher than that of controls. Other indices for M. spicatum were not remarkably changed at 28 d. Our results indicate that the oxidative damage to M. spicatum caused by LAS stress after 28 d is clearly less than such damage at 14 d. Environ Toxicol Chem 2019;38:2073-2081. © 2019 SETAC.
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Affiliation(s)
- Yilin Liu
- National Field Station of Freshwater Ecosystem in Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Nian Liu
- National Field Station of Freshwater Ecosystem in Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan, Hubei, China
| | - Yuhong Zhou
- Hanjiang River Hydrology and Water Resources Survey Bureau, Hydrology Bureau of the Yangtze River Water Conservancy Committee, Xiangyang, Hubei, China
| | - Feng Wang
- Hanjiang River Hydrology and Water Resources Survey Bureau, Hydrology Bureau of the Yangtze River Water Conservancy Committee, Xiangyang, Hubei, China
| | - Yizhe Zhang
- Hanjiang River Hydrology and Water Resources Survey Bureau, Hydrology Bureau of the Yangtze River Water Conservancy Committee, Xiangyang, Hubei, China
| | - Zhonghua Wu
- National Field Station of Freshwater Ecosystem in Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan, Hubei, China
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Selby-Pham J, Lutz A, Moreno-Moyano LT, Boughton BA, Roessner U, Johnson AAT. Diurnal Changes in Transcript and Metabolite Levels during the Iron Deficiency Response of Rice. RICE (NEW YORK, N.Y.) 2017; 10:14. [PMID: 28429296 PMCID: PMC5398970 DOI: 10.1186/s12284-017-0152-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 04/04/2017] [Indexed: 05/03/2023]
Abstract
BACKGROUND Rice (Oryza sativa L.) is highly susceptible to iron (Fe) deficiency due to low secretion levels of the mugineic acid (MA) family phytosiderophore (PS) 2'-deoxymugineic acid (DMA) into the rhizosphere. The low levels of DMA secreted by rice have proved challenging to measure and, therefore, the pattern of DMA secretion under Fe deficiency has been less extensively studied relative to other graminaceous monocot species that secrete high levels of PS, such as barley (Hordeum vulgare L.). RESULTS Gene expression and metabolite analyses were used to characterise diurnal changes occurring during the Fe deficiency response of rice. Iron deficiency inducible genes involved in root DMA biosynthesis and secretion followed a diurnal pattern with peak induction occurring 3-5 h after the onset of light; a result consistent with that of other Strategy II plant species such as barley and wheat. Furthermore, triple quadrupole mass spectrometry identified 3-5 h after the onset of light as peak time of DMA secretion from Fe-deficient rice roots. Metabolite profiling identified accumulation of amines associated with metal chelation, metal translocation and plant oxidative stress responses occurring with peak induction 10-12 h after the onset of light. CONCLUSION The results of this study confirmed that rice shares a similar peak time of Fe deficiency associated induction of DMA secretion compared to other Strategy II plant species but has less prominent daily fluctuations of DMA secretion. It also revealed metabolic changes associated with the remediation of Fe deficiency and mitigation of damage from resulting stress in rice roots. This study complements previous studies on the genetic changes in response to Fe deficiency in rice and constitutes an important advance towards our understanding of the molecular mechanisms underlying the rice Fe deficiency response.
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Affiliation(s)
- Jamie Selby-Pham
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Adrian Lutz
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
- Metabolomics Australia, The University of Melbourne, Parkville, Victoria, Australia
| | | | - Berin A Boughton
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
- Metabolomics Australia, The University of Melbourne, Parkville, Victoria, Australia
| | - Ute Roessner
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
- Metabolomics Australia, The University of Melbourne, Parkville, Victoria, Australia
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Pratibha P, Singh SK, Srinivasan R, Bhat SR, Sreenivasulu Y. Gametophyte Development Needs Mitochondrial Coproporphyrinogen III Oxidase Function. PLANT PHYSIOLOGY 2017; 174:258-275. [PMID: 28270625 PMCID: PMC5411134 DOI: 10.1104/pp.16.01482] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 02/28/2017] [Indexed: 05/03/2023]
Abstract
Tetrapyrrole biosynthesis is one of the most essential metabolic pathways in almost all organisms. Coproporphyrinogen III oxidase (CPO) catalyzes the conversion of coproporphyrinogen III into protoporphyrinogen IX in this pathway. Here, we report that mutation in the Arabidopsis (Arabidopsis thaliana) CPO-coding gene At5g63290 (AtHEMN1) adversely affects silique length, ovule number, and seed set. Athemn1 mutant alleles were transmitted via both male and female gametes, but homozygous mutants were never recovered. Plants carrying Athemn1 mutant alleles showed defects in gametophyte development, including nonviable pollen and embryo sacs with unfused polar nuclei. Improper differentiation of the central cell led to defects in endosperm development. Consequently, embryo development was arrested at the globular stage. The mutant phenotype was completely rescued by transgenic expression of AtHEMN1 Promoter and transcript analyses indicated that AtHEMN1 is expressed mainly in floral tissues and developing seeds. AtHEMN1-green fluorescent protein fusion protein was found targeted to mitochondria. Loss of AtHEMN1 function increased coproporphyrinogen III level and reduced protoporphyrinogen IX level, suggesting the impairment of tetrapyrrole biosynthesis. Blockage of tetrapyrrole biosynthesis in the AtHEMN1 mutant led to increased reactive oxygen species (ROS) accumulation in anthers and embryo sacs, as evidenced by nitroblue tetrazolium staining. Our results suggest that the accumulated ROS disrupts mitochondrial function by altering their membrane polarity in floral tissues. This study highlights the role of mitochondrial ROS homeostasis in gametophyte and seed development and sheds new light on tetrapyrrole/heme biosynthesis in plant mitochondria.
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Affiliation(s)
- Pritu Pratibha
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., S.K.S., Y.S.)
- Academy of Scientific and Innovative Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., Y.S.); and
- Indian Council of Agricultural Research-National Research Centre on Plant Biotechnology, New Delhi 110012, India (R.S., S.R.B.)
| | - Sunil Kumar Singh
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., S.K.S., Y.S.)
- Academy of Scientific and Innovative Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., Y.S.); and
- Indian Council of Agricultural Research-National Research Centre on Plant Biotechnology, New Delhi 110012, India (R.S., S.R.B.)
| | - Ramamurthy Srinivasan
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., S.K.S., Y.S.)
- Academy of Scientific and Innovative Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., Y.S.); and
- Indian Council of Agricultural Research-National Research Centre on Plant Biotechnology, New Delhi 110012, India (R.S., S.R.B.)
| | - Shripad Ramachandra Bhat
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., S.K.S., Y.S.);
- Academy of Scientific and Innovative Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., Y.S.); and
- Indian Council of Agricultural Research-National Research Centre on Plant Biotechnology, New Delhi 110012, India (R.S., S.R.B.)
| | - Yelam Sreenivasulu
- Biotechnology Division, Council of Scientific and Industrial Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., S.K.S., Y.S.);
- Academy of Scientific and Innovative Research-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India (P.P., Y.S.); and
- Indian Council of Agricultural Research-National Research Centre on Plant Biotechnology, New Delhi 110012, India (R.S., S.R.B.)
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Apicella P, Cascone S, De Santis F, Lamberti G. Iron Chelates: Production Processes and Reaction Evolution Analysis. CHEM ENG COMMUN 2015. [DOI: 10.1080/00986445.2015.1114476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Huang D, Dai W. Molecular characterization of the basic helix-loop-helix (bHLH) genes that are differentially expressed and induced by iron deficiency in Populus. PLANT CELL REPORTS 2015; 34:1211-24. [PMID: 25721202 DOI: 10.1007/s00299-015-1779-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 02/12/2015] [Accepted: 02/17/2015] [Indexed: 05/22/2023]
Abstract
Two Populus bHLH genes ( PtFIT and PtIRO ) were cloned and characterized. The iron deficiency tolerance may be regulated by the PtFIT -dependent response pathway in Populus. Five orthologs of eight Arabidopsis basic helix-loop-helix (bHLH) genes responding to iron deficiency in Populus were analyzed. Open reading frame (ORF) regions of two bHLH genes (PtFIT and PtIRO) were isolated from the iron deficiency tolerant (PtG) and susceptible (PtY) genotypes of Populus tremula 'Erecta'. Gene sequence analyses showed that each of the two genes was identical in PtG and PtY. Phylogenetic analysis revealed that PtFIT was clustered with the bHLH genes regulating iron deficiency responses, while PtIRO was clustered with another group of the bHLH genes regulating iron deficiency responses in a FIT-independent pathway. Tissue-specific expression analysis indicated that PtFIT was only detected in the root among all tested tissues, while PtIRO was rarely detected in all tested tissues. Real-time PCR showed that PtFIT was up-regulated in roots under the iron-deficient condition. A higher level of PtFIT transcripts was detected in PtG than in PtY. Pearson Correlation Coefficient calculations indicated a strong positive correlation (r = 0.94) between PtFIT and PtIRT1 in PtG. It suggests that the iron deficiency tolerance of PtG may be regulated by the PtFIT-dependent response pathway. The PtFIT-transgenic poplar plants had an increased expression level of PtFIT and PtIRT1 responding to iron deficiency. One PtFIT-transgenic line (TL2) showed enhanced iron deficiency tolerance with higher chlorophyll content and Chl a/b ratio under iron deficiency than the control plants, indicating that PtFIT is involved in iron deficiency response in Populus. The results would provide useful information to understand iron deficiency response mechanisms in woody species.
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Affiliation(s)
- Danqiong Huang
- Department of Plant Sciences, North Dakota State University, Fargo, ND, USA
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7
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Saha P, Raychaudhuri SS, Chakraborty A, Sudarshan M. PIXE analysis of trace elements in relation to chlorophyll concentration in Plantago ovata Forsk. Appl Radiat Isot 2010; 68:444-9. [PMID: 20047839 DOI: 10.1016/j.apradiso.2009.12.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Revised: 12/01/2009] [Accepted: 12/01/2009] [Indexed: 10/20/2022]
Abstract
Plantago ovata Forsk - an economically important medicinal plant - was analyzed for trace elements and chlorophyll in a study of the effects of gamma radiation on physiological responses of the seedlings. Proton-induced X-ray emission (PIXE) technique was used to quantify trace elements in unirradiated and gamma-irradiated plants at the seedling stage. The experiments revealed radiation-induced changes in the trace element and chlorophyll concentrations.
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Affiliation(s)
- Priyanka Saha
- Department of Biophysics, Molecular Biology and Bioinformatics, University of Calcutta, Kolkata, India
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9
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10
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Abstract
A method for reproducibly estimating the protoheme content of plant tissues has been developed. The tissue sample is homogenized in 80% acetone to remove pigments and lipids; protoheme is then extracted from the tissue residue with 2% HCl in acetone and quantitatively transferred into diethyl ether. After evaporation of the ether, the residue is dissolved in alkaline pyridine, and the protoheme concentration is estimated from a dithionite-reduced-minus-ferricyanide-oxidized spectrum. When compared to some other methods, this procedure gives consistently higher yields.
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Affiliation(s)
- L C Stillman
- Department of Biological Sciences, University of Illinois at Chicago Circle 60680, USA
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11
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Stocking CR. Iron deficiency and the structure and physiology of maize chloroplasts. PLANT PHYSIOLOGY 1975; 55:626-31. [PMID: 16659137 PMCID: PMC541676 DOI: 10.1104/pp.55.4.626] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The ultrastructure of mesophyll chloroplasts of maize (Zea mays L.) was more severely affected by iron deficiency that induced mild chlorosis than was the ultrastructure of bundle sheath plastids. Ferredoxin and ribulose diphosphate carboxylase levels were severely decreased by iron deficiency. Malic enzyme was less affected, and phosphoenolpyruvate carboxylase activity remained high even under severe iron deficiency. Iron deficient leaves fixed carbon into malic and aspartic acids but the rate of entrance of carbon into the sugar phosphates and sucrose was greatly reduced compared to the control. Chlorophyll a/b ratios ranged from low values of less than 2 in severely iron deficient leaves to high values exceeding 4 in leaves showing little iron deficiency.
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Affiliation(s)
- C R Stocking
- Department of Botany, University of California, Davis, California 95616
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12
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Duggan J, Gassman M. Induction of porphyrin synthesis in etiolated bean leaves by chelators of iron. PLANT PHYSIOLOGY 1974; 53:206-15. [PMID: 16658677 PMCID: PMC541365 DOI: 10.1104/pp.53.2.206] [Citation(s) in RCA: 45] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Primary leaves of 7- to 9-day-old etiolated seedlings of Phaseolus vulgaris L. var. Red Kidney infiltrated in darkness with aqueous solutions of alpha, alpha'-dipyridyl, o-phenanthroline, pyridine-2-aldoxime, pyridine-2-aldehyde, 8-hydroxyquinoline, or picolinic acid synthesize large amounts of magnesium protoporphyrin monomethyl ester and lesser amounts of magnesium protoporphyrin, protoporphyrin, and protochlorophyllide. Pigment formation proceeds in a linear manner for up to 21 hours after vacuum infiltration with 10 mm alpha, alpha'-dipyridyl. Etiolated tissues of Zea mays L., Cucumis sativus L., and Pisum sativum L. respond in the same way to dipyridyl treatment. Compounds active in eliciting this response are aromatic heterocyclic nitrogenous bases which also act as bidentate chelators and form extremely stable complexes with iron; other metal ion chelators, such as ethylenediaminetetraacetic acid, salicylaldoxime, and sodium diethyldithiocarbamate, do not elicit any pigment synthesis. The ferrous, ferric, cobaltous, and zinc chelates of alpha, alpha'-dipyridyl are similarly ineffective. If levulinic acid is supplied to etiolated bean leaves together with alpha, alpha'-dipyridyl, porphyrin production is inhibited and delta-aminolevulinic acid accumulates in the tissue. Synthesis of porphyrins proceeds in the presence of 450 micrograms per milliliter chloramphenicol or 50 micrograms per milliliter cycloheximide with only partial diminution. We propose that heme or an iron-protein complex blocks the action of the enzyme(s) governing the synthesis of delta-aminolevulinic acid in etiolated leaves in the dark and that iron chelators antagonize this inhibition, leading to the biosynthesis of delta-aminolevulinic acid and porphyrins.
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Affiliation(s)
- J Duggan
- Department of Biological Sciences, The University of Illinois at Chicago Circle, Chicago, Illinois 60680
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Ramaswamy NK, Nair PM. -Aminolevulinic acid synthetase from cold-stored potatoes. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 293:269-77. [PMID: 4685279 DOI: 10.1016/0005-2744(73)90399-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Yubisui T, Yoneyama Y. -Aminolevulinic acid synthetase of Rhodopseudomonas spheroides: purification and properties of the enzyme. Arch Biochem Biophys 1972; 150:77-85. [PMID: 4537311 DOI: 10.1016/0003-9861(72)90012-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Abstract
1. Coproporphyrinogenase was extracted and purified from tobacco (Nicotiana tabacum L.). Enzyme activity was mainly located in mitochondria rather than in chloroplasts. The enzyme was purified by differential centrifugation, ammonium sulphate fractionation, calcium phosphate gel adsorption and dialysis. A 69-fold final purification was obtained. 2. An apparent K(m) value of 3.6x10(-5)m was found, the value being largely dependent on the amount of coproporphyrin III recovered after reduction with sodium amalgam to coproporphyrinogen III. Protoporphyrin formation was linear up to 3h and decreased with further incubation. The enzyme activity increased with the concentration of enzyme protein up to 30mug/ml of solution. 3. Enzyme activity was greatly enhanced by increasing Fe(2+) concentrations up to 0.5mm, beyond which inhibition occurred. Co(2+) and Mn(2+) were also found to activate at low concentrations (0.1mm) and inhibit at higher concentrations (5mm). Fe(3+) and Cu(2+), both at 0.1mm, and o-phenanthroline and EDTA, each at 1mm, were found to be inhibitory.
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16
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Machold O, Scholz G. [Iron metabolism and chlorophyll formation in higher plants]. THE SCIENCE OF NATURE - NATURWISSENSCHAFTEN 1969; 56:447-52. [PMID: 5362717 DOI: 10.1007/bf00601057] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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17
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Elmstrom GW, Howard FD. Iron accumulation, root peroxidase activity, and varietal interactions in soybean genotypes that differ in iron nutrition. PLANT PHYSIOLOGY 1969; 44:1108-14. [PMID: 16657175 PMCID: PMC396224 DOI: 10.1104/pp.44.8.1108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Four soybean genotypes (Glycine max L. Merrill) differing in their ability to accumulate iron were studied: the efficient genotypes Hawkeye (HA) and A62-9 (E-9) and the inefficient genotypes PI-54619-5-1 (PI) and A62-10 (I-10).The distribution of iron in the tissues of plants grown in a growth chamber in nutrient solutions containing various levels of iron was determined. A greater amount of iron was associated with the roots of inefficient plants than with roots of efficient plants, indicating a slower rate of iron translocation in the former. After determination of the amount of iron in the shoots at low levels of nutrient iron, the ability of the several genotypes to accumulate iron was rated HA> E-9> I-10>/= PI. At the highest level of nutrient iron the rated efficiencies were E-9> HA> I-10> PI. Accumulation of iron in the primary leaves provided an excellent indication of whole-plant iron accumulation. A reduction in accumulation of iron by efficient plants occurred when the plants were grown together in the same solution as inefficient ones.
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Affiliation(s)
- G W Elmstrom
- Department of Vegetable Crops, University of California, Davis, California 95616
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Agarwala SC, Sharma CP, Farooq S. Effect of Iron Supply on Growth, Chlorophyll, Tissue Iron and Activity of Certain Enzymes in Maize and Radish. PLANT PHYSIOLOGY 1965; 40:493-9. [PMID: 16656116 PMCID: PMC550322 DOI: 10.1104/pp.40.3.493] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Affiliation(s)
- S C Agarwala
- Department of Botany, Lucknow University, Lucknow, India
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Marschner H. Anreicherung von Porphyrinen und Protochlorophyllid in Gerstensprossen unter dem Einfluß von Cäsium. ACTA ACUST UNITED AC 1965. [DOI: 10.1016/s0367-1615(17)33390-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Marsh HV, Evans HJ, Matrone G. Investigations of the Role of Iron in Chlorophyll Metabolism. II. Effect of Iron Deficiency on Chlorophyll Synthesis. PLANT PHYSIOLOGY 1963; 38:638-42. [PMID: 16655845 PMCID: PMC549988 DOI: 10.1104/pp.38.6.638] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Affiliation(s)
- H V Marsh
- North Carolina State College, Raleigh
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