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de A Bojórquez-Quintal JE, Sánchez-Cach LA, Ku-González Á, de los Santos-Briones C, de Fátima Medina-Lara M, Echevarría-Machado I, Muñoz-Sánchez JA, Teresa Hernández Sotomayor SM, Estévez MM. Differential effects of aluminum on in vitro primary root growth, nutrient content and phospholipase C activity in coffee seedlings (Coffea arabica). J Inorg Biochem 2014; 134:39-48. [PMID: 24531533 DOI: 10.1016/j.jinorgbio.2014.01.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 01/21/2014] [Accepted: 01/23/2014] [Indexed: 12/17/2022]
Abstract
Coffea arabica is a woody species that grows in acid soils, where aluminum is available and may affect growth and productivity. To determine the effect of aluminum on primary root growth of C. arabica cv. Typica, seedlings were exposed over 30 days to different concentrations of AlCl3 (0, 100, 300 and 500 μM) in vitro. The aluminum effect on primary root growth was dose-dependent: low aluminum concentrations (100 and 300 μM) stimulated primary root growth (6.98 ± 0.15 and 6.45 ± 0.17 cm, respectively) compared to the control (0 μM; 5.24 ± 0.17 cm), while high concentrations (500 μM) induced damage to the root tips and inhibition of primary root growth (2.96 ± 0.28 cm). Aluminum (100 μM) also increased the K and Ca contents around 33% and 35% in the coffee roots. It is possible that aluminum toxicity resides in its association with cell nuclei in the meristematic region of the root. Additionally, after 30 days of treatment with aluminum, two different effects could be observed on phospholipase C (PLC) activity. In shoots, aluminum concentrations ≥ 300 μM inhibited more than 50% of PLC activity. In contrast, in roots a contrasting behavior was determined: low (100 μM) and toxic concentrations (500 μM) increased the activity of PLC (100%). These results suggest the possible involvement of the phosphoinositide signal transduction pathway, with the phospholipase C enzyme participating in the beneficial and toxic effects of aluminum in plants.
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Affiliation(s)
- Jesús E de A Bojórquez-Quintal
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - Lucila A Sánchez-Cach
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - Ángela Ku-González
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - Cesar de los Santos-Briones
- Unidad de Biotecnología, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - María de Fátima Medina-Lara
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - Ileana Echevarría-Machado
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - José A Muñoz-Sánchez
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - S M Teresa Hernández Sotomayor
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico
| | - Manuel Martínez Estévez
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Calle 43 # 130, Col. Chuburná de Hidalgo, 97200 Mérida, Yucatán, Mexico.
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Rivera-Solís RA, Peraza-Echeverria S, Echevarría-Machado I, Herrera-Valencia VA. Chlamydomonas reinhardtii has a small family of purple acid phosphatase homologue genes that are differentially expressed in response to phytate. ANN MICROBIOL 2013. [DOI: 10.1007/s13213-013-0688-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Altúzar-Molina AR, Muñoz-Sánchez JA, Vázquez-Flota F, Monforte-González M, Racagni-Di Palma G, Hernández-Sotomayor SMT. Phospholipidic signaling and vanillin production in response to salicylic acid and methyl jasmonate in Capsicum chinense J. cells. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2011; 49:151-8. [PMID: 21147536 DOI: 10.1016/j.plaphy.2010.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Revised: 10/27/2010] [Accepted: 11/05/2010] [Indexed: 05/20/2023]
Abstract
The phospholipidic signal transduction system involves generation of second messengers by hydrolysis or changes in phosphorylation state. Several studies have shown that the signaling pathway forms part of plant response to phytoregulators such as salicylic acid (SA) and methyl jasmonate (MJ), which have been widely used to stimulate secondary metabolite production in cell cultures. An evaluation was made of the effect of SA and MJ on phospholipidic signaling and capsaicinoid production in Capsicum chinense Jacq. suspension cells. Treatment with SA inhibited phospholipase C (PLC) (EC: 3.1.4.3) and phospholipase D (PLD) (EC: 3.1.4.4) activities in vitro, but increased lipid kinase activities in vitro at different SA concentrations. Treatment with MJ produced increases in PLC and PLD activities, while lipid kinase activities were variable and dose-dependent. The production of vanillin, a precursor of capsaicinoids, increased at specific SA or MJ doses. Preincubation with neomycin, a phospholipase inhibitor, before SA or MJ treatment inhibits increase in vanillin production which suggests that phospholipidic second messengers may participate in the observed increase in vanillin production.
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Affiliation(s)
- Alma R Altúzar-Molina
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán (CICY), Calle 43 No. 130, Col. Chuburná de Hidalgo, 97200 Merida, Yucatán, Mexico
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Poutrain P, Mazars C, Thiersault M, Rideau M, Pichon O. Two distinct intracellular Ca2+-release components act in opposite ways in the regulation of the auxin-dependent MIA biosynthesis in Catharanthus roseus cells. JOURNAL OF EXPERIMENTAL BOTANY 2009; 60:1387-98. [PMID: 19218316 DOI: 10.1093/jxb/erp017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Calcium-mediated signalling is ubiquitous in both animals and plants. Changes in cytoplasmic free Ca(2+) concentration couple diverse arrays of stimuli to their specific responses, the specificity of the stimulus being determined by integrated actions between multiple Ca(2+) mobilization pathways. In this work, a pharmacological approach is reported, aimed at deciphering the role of calcium as a second messenger in the transduction pathway leading to the inhibitory effect of 2,4-dichlorophenoxyacetic acid (2,4-D), in regulating monoterpene indole alkaloid (MIA) biosynthesis in Catharanthus roseus cells. It is demonstrated here that auxin-dependent MIA biosynthesis is differentially regulated by two distinct calcium release components from internal stores in C. roseus showing pharmacological profiles similar to those displayed by animal RyR and IP3 channels. MIA biosynthesis is stimulated by caffeine (Ca(2+)-release activator through RyR channels) and by heparin and TMB8 (Ca(2+)-release inhibitors of IP3 channels) whereas MIA biosynthesis is inhibited by mastoparan (Ca(2+)-release activator of IP3 channels) and by ruthenium red and DHBP (Ca(2+)-release inhibitors of RyR channels). Furthermore, calcium, as 2,4-D, acts on MIA biosynthesis by regulating the monoterpene moiety of the MIA biosynthesis pathway since calcium channel modulators preferentially modulate g10h expression, the gene encoding the enzyme of the secoiridoid monoterpene pathway, that is the major target of 2,4-D action. In addition, the simultaneous use of caffeine (an activator of RyR channel in animals) and TMB8 (an inhibitor of the IP3 channel) in 2,4-D treated cells triggers a synergistic effect on MIA accumulation. This finding suggests an opposite and co-ordinated action of multiple Ca(2+)-release pathways in 2,4-D signal transduction, adding a new level of complexity to calcium signalling in plants and questioning the existence of RyR and IP3 channels in plants.
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Affiliation(s)
- Pierre Poutrain
- Université François Rabelais de Tours, EA 2106 Biomolécules et Biotechnologies végétales, F-37200 Tours, France.
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Tuteja N, Sopory SK. Plant signaling in stress: G-protein coupled receptors, heterotrimeric G-proteins and signal coupling via phospholipases. PLANT SIGNALING & BEHAVIOR 2008; 3:79-86. [PMID: 19516978 PMCID: PMC2633988 DOI: 10.4161/psb.3.2.5303] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Accepted: 11/13/2007] [Indexed: 05/20/2023]
Abstract
Plant growth and development are coordinalely controlled by several internal factors and environmental signals. To sense these environmental signals, the higher plants have evolved a complex signaling network, which may also cross talk with each other. Plants can respond to the signals as individual cells and as whole organisms. Various receptors including phytochromes, G-proteins coupled receptors (GPCR), kinase and hormone receptors play important role in signal transduction but very few have been characterized in plant system. The heterotrimeric G-proteins mediate the coupling of signal transduction from activated GPCR to appropriate downstream effectors and thereby play an important role in signaling. In this review we have focused on some of the recent work on G-proteins and two of the effectors, PLC and PLD, which have been shown to interact with Galpha subunit and also discussed their role in abiotic stress tolerance.
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Affiliation(s)
- Narendra Tuteja
- Plant Molecular Biology Group; International Centre for Genetic Engineering and Biotechnology (ICGEB); Aruna Asaf Ali Marg; New Delhi, India
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