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Li Y, Parven N, Akimoto SI. Interspecific recognition based on cuticular hydrocarbons mediates reproduction control in aphids. Sci Rep 2024; 14:4079. [PMID: 38374306 PMCID: PMC10876990 DOI: 10.1038/s41598-024-54019-7] [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: 07/10/2023] [Accepted: 02/07/2024] [Indexed: 02/21/2024] Open
Abstract
The preset study tested whether an aphid species can control its reproduction by recognizing the presence and density of a rival species. Acyrthosiphon pisum and Megoura crassicauda often coexist on the same leguminous plant. We established clonal colonies from each species and mixed colonies with one A. pisum and one M. crassicauda adult. There were no significant differences in the population growth patterns of the two species at 20 °C. However, mixed colonies increased faster and attained larger colony sizes than the clonal colonies. Thus, positive interspecific interactions were confirmed. A mixed colony was dominated by the members of a clone that produced a greater number of newborns in the initial stage, irrespective of the species. Thus, we confirmed the priority effect in the interspecific competition. To simulate the priority effect, 15 glass beads coated with the hexane extract of M. crassicauda aphids were attached to a cut leaf, to which one A. pisum adult was transferred. The presence of the hexane extract of M. crassicauda greatly reduced the reproductive rate of A. pisum adults. We conclude that aphids can control their reproduction by evaluating the relative density of rivals to fellow aphids based on the cuticular hydrocarbons.
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Affiliation(s)
- Yang Li
- Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan.
- College of Biology and Agriculture, Zunyi Normal University, Zunyi, 563006, Guizhou, China.
| | - Nousheen Parven
- Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan
- Department of Zoology, University of Dhaka, Dhaka University Campus, Dhaka, 1000, Bangladesh
| | - Shin-Ichi Akimoto
- Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo, 060-8589, Japan.
- The Hokkaido University Museum, Hokkaido University, Sapporo, 060-0810, Japan.
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Libertini G. Phenoptosis and the Various Types of Natural Selection. BIOCHEMISTRY. BIOKHIMIIA 2023; 88:2007-2022. [PMID: 38462458 DOI: 10.1134/s0006297923120052] [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: 07/27/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 03/12/2024]
Abstract
In the first description of evolution, the fundamental mechanism is the natural selection favoring the individuals best suited for survival and reproduction (selection at the individual level or classical Darwinian selection). However, this is a very reductive description of natural selection that does not consider or explain a long series of known phenomena, including those in which an individual sacrifices or jeopardizes his life on the basis of genetically determined mechanisms (i.e., phenoptosis). In fact, in addition to (i) selection at the individual level, it is essential to consider other types of natural selection such as those concerning: (ii) kin selection and some related forms of group selection; (iii) the interactions between the innumerable species that constitute a holobiont; (iv) the origin of the eukaryotic cell from prokaryotic organisms; (v) the origin of multicellular eukaryotic organisms from unicellular organisms; (vi) eusociality (e.g., in many species of ants, bees, termites); (vii) selection at the level of single genes, or groups of genes; (viii) the interactions between individuals (or more precisely their holobionts) of the innumerable species that make up an ecosystem. These forms of natural selection, which are all effects and not violations of the classical Darwinian selection, also show how concepts as life, species, individual, and phenoptosis are somewhat not entirely defined and somehow arbitrary. Furthermore, the idea of organisms selected on the basis of their survival and reproduction capabilities is intertwined with that of organisms also selected on the basis of their ability to cooperate and interact, even by losing their lives or their distinct identities.
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Affiliation(s)
- Giacinto Libertini
- Italian Society for Evolutionary Biology (ISEB), Asti, 14100, Italy.
- Department of Translational Medical Sciences, Federico II University of Naples, Naples, 80131, Italy
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5
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Fox S. Synchronous Generative Development amidst Situated Entropy. ENTROPY (BASEL, SWITZERLAND) 2022; 24:89. [PMID: 35052115 PMCID: PMC8775003 DOI: 10.3390/e24010089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/30/2021] [Accepted: 01/04/2022] [Indexed: 12/04/2022]
Abstract
The Sustainable Development Goals have been criticized for not providing sufficient balance between human well-being and environmental well-being. By contrast, joint agent-environment systems theory is focused on reciprocal synchronous generative development. The purpose of this paper is to extend this theory towards practical application in sustainable development projects. This purpose is fulfilled through three interrelated contributions. First, a practitioner description of the theory is provided. Then, the theory is extended through reference to research concerned with multilevel pragmatics, competing signals, commitment processes, technological mediation, and psychomotor functioning. In addition, the theory is related to human-driven biosocial-technical innovation through the example of digital twins for agroecological urban farming. Digital twins being digital models that mirror physical processes; that are connected to physical processes through, for example, sensors and actuators; and which carry out analyses of physical processes in order to improve their performance. Together, these contributions extend extant theory towards application for synchronous generative development that balances human well-being and environmental well-being. However, the practical examples in the paper indicate that counterproductive complexity can arise from situated entropy amidst biosocial-technical innovations: even when those innovations are compatible with synchronous generative development.
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Affiliation(s)
- Stephen Fox
- VTT Technical Research Centre of Finland, FI-02150 Espoo, Finland
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Fu L, Lu D, Li Q, Wang X, Zhou C. Can we 'feel' the temperature of knowledge? Modelling scientific popularity dynamics via thermodynamics. PLoS One 2021; 16:e0244618. [PMID: 33571223 PMCID: PMC7877646 DOI: 10.1371/journal.pone.0244618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/11/2020] [Indexed: 11/17/2022] Open
Abstract
Just like everything in nature, scientific topics flourish and perish. While existing literature well captures article's life-cycle via citation patterns, little is known about how scientific popularity and impact evolves for a specific topic. It would be most intuitive if we could 'feel' topic's activity just as we perceive the weather by temperature. Here, we conceive knowledge temperature to quantify topic overall popularity and impact through citation network dynamics. Knowledge temperature includes 2 parts. One part depicts lasting impact by assessing knowledge accumulation with an analogy between topic evolution and isobaric expansion. The other part gauges temporal changes in knowledge structure, an embodiment of short-term popularity, through the rate of entropy change with internal energy, 2 thermodynamic variables approximated via node degree and edge number. Our analysis of representative topics with size ranging from 1000 to over 30000 articles reveals that the key to flourishing is topics' ability in accumulating useful information for future knowledge generation. Topics particularly experience temperature surges when their knowledge structure is altered by influential articles. The spike is especially obvious when there appears a single non-trivial novel research focus or merging in topic structure. Overall, knowledge temperature manifests topics' distinct evolutionary cycles.
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Affiliation(s)
- Luoyi Fu
- Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Dongrui Lu
- Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Li
- Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xinbing Wang
- Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Chenghu Zhou
- Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
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Derbyshire EJ. Is There Scope for a Novel Mycelium Category of Proteins alongside Animals and Plants? Foods 2020; 9:E1151. [PMID: 32825591 PMCID: PMC7555420 DOI: 10.3390/foods9091151] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 12/20/2022] Open
Abstract
In the 21st century, we face a troubling trilemma of expanding populations, planetary and public wellbeing. Given this, shifts from animal to plant food protein are gaining momentum and are an important part of reducing carbon emissions and consumptive water use. However, as this fast-pace of change sets in and begins to firmly embed itself within food-based dietary guidelines (FBDG) and food policies we must raise an important question-is now an opportunistic time to include other novel, nutritious and sustainable proteins within FBGD? The current paper describes how food proteins are typically categorised within FBDG and discusses how these could further evolve. Presently, food proteins tend to fall under the umbrella of being 'animal-derived' or 'plant-based' whilst other valuable proteins i.e., fungal-derived appear to be comparatively overlooked. A PubMed search of systematic reviews and meta-analytical studies published over the last 5 years shows an established body of evidence for animal-derived proteins (although some findings were less favourable), plant-based proteins and an expanding body of science for mycelium/fungal-derived proteins. Given this, along with elevated demands for alternative proteins there appears to be scope to introduce a 'third' protein category when compiling FBDG. This could fall under the potential heading of 'fungal' protein, with scope to include mycelium such as mycoprotein within this, for which the evidence-base is accruing.
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Cardini A, Pellegrino E, Del Dottore E, Gamper HA, Mazzolai B, Ercoli L. HyLength: a semi-automated digital image analysis tool for measuring the length of roots and fungal hyphae of dense mycelia. MYCORRHIZA 2020; 30:229-242. [PMID: 32300867 DOI: 10.1007/s00572-020-00956-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
In plant-fungus phenotyping, determining fungal hyphal and plant root lengths by digital image analysis can reduce labour and increase data reproducibility. However, the degree of software sophistication is often prohibitive and manual measuring is still used, despite being very time-consuming. We developed the HyLength tool for measuring the lengths of hyphae and roots in in vivo and in vitro systems. The HyLength was successfully validated against manual measures of roots and fungal hyphae obtained from all systems. Compared with manual methods, the HyLength underestimated Medicago sativa roots in the in vivo system and Rhizophagus irregularis hyphae in the in vitro system by about 12 cm per m and allowed to save about 1 h for a single experimental unit. As regards hyphae of R. irregularis in the in vivo system, the HyLength overestimated the length by about 21 cm per m compared with manual measures, but time saving was up to 20.5 h per single experimental unit. Finally, with hyphae of Aspergillus oryzae, the underestimation was about 8 cm per m with a time saving of about 10 min for a single germinating spore. By benchmarking the HyLength against the AnaMorf plugin of the ImageJ/Fiji, we found that the HyLength performed better for dense fungal hyphae, also strongly reducing the measuring time. The HyLength can allow measuring the length over a whole experimental unit, eliminating the error due to sub-area selection by the user and allowing processing a high number of samples. Therefore, we propose the HyLength as a useful freeware tool for measuring fungal hyphae of dense mycelia.
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Affiliation(s)
- Alessio Cardini
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127, Pisa, Italy
| | - Elisa Pellegrino
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127, Pisa, Italy.
| | - Emanuela Del Dottore
- Center for Micro-BioRobotics, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Hannes A Gamper
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127, Pisa, Italy
- Free University of Bozen-Bolzano, Faculty of Science and Technology, Universitätsplatz 5 - piazza Università 5, 39100, Bozen-Bolzano, Italy
| | - Barbara Mazzolai
- Center for Micro-BioRobotics, Istituto Italiano di Tecnologia, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Laura Ercoli
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127, Pisa, Italy
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Arbuscular Mycorrhizal Fungi Inoculation as a Climate Adaptation Strategy for Establishment of Swietenia macrophylla King. Seedlings. FORESTS 2020. [DOI: 10.3390/f11050488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Research Highlights: Drought stress significantly decreased the performance of seedlings in the nursery. Seedlings inoculated with Claroideoglomus etunicatum is recommended to produce superior planting stock of mahogany seedlings with better drought resistance in the nursery. Background and Objectives: With numerous intense droughts across tropical regions due to climate change, it is crucial to understand effects of drought stress on tree seedlings to improve crop management practices and avoid failures on large scale planting. Swietenia macrophylla, a commercial timber species in India, is poorly studied in relation to its management including physiological responses to various environmental stresses. Arbuscular mycorrhizal fungi (AMF) is known to improve performance of tree seedlings under drought conditions and produce quality planting stock in nursery. This study aims to understand the responses of mahogany seedlings under different levels of drought stress when inoculated with three types of AMF, namely Funneliformis mosseae, Claroideoglomus etunicatum, and Rhizophagus intraradices. Materials and Methods: The experiment is conducted in pot culture using a factorial completely randomized design. Different irrigation regimes were applied at 100, 80, 60, and 40 percentage of weekly cumulative evapotranspiration. The seedlings were tested for biometric, physiological, and mycorrhizal parameters periodically. Results: Physiological attributes such as rate of photosynthesis, stomatal conductance, transpiration rate, chlorophyll content, and water potential were found to be higher in the daily irrigated (control) seedlings. Performance of the seedlings were poorest in the least irrigated treatment. It was apparent that inoculated seedlings performed better than the non-inoculated ones. Conclusions: Among the three different AMF species used, C. etunicatum was found to be the most beneficial and suitable for the young mahogany seedlings. These seedlings also recorded higher root colonization percentage and total spore count in the rhizosphere soils. Seedlings inoculated with C. etunicatum showed positive influence on rate of photosynthesis, stomatal conductance, transpiration rate, chlorophyll content, relative growth rate (RGR) and water potential of seedlings.
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Schunevitsch M, Lichtenauer P, Medrano Mercado N, Stadler-Kaulich N. The intensity of symbiotic relationships between arbuscular mycorrhizae and differentiated tree species regarding their age group and plant family in semi-arid Andine dynamical agroforestry system. BIONATURA 2019. [DOI: 10.21931/rb/2019.04.04.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
As research on mycorrhiza progress and scientific knowledge about organic partnerships becomes more profound, mycorrhiza symbiosis is considered an essential parameter for the vitality of ecosystems. Concerning polyculture cultivation systems, the implementation of growth-promoting and nutrient-securing symbiotic partners is a crucial step towards preserving the dynamism of involved plants and thus decisive for the yield and success of such cultivation systems. In particular, arbuscular mycorrhizal fungi (AMF) show a considerable tendency in encouraging and maintaining a supply of water and nutrition for plants. Therefore, it was examined how intensive partnerships between AMF and trees in the semi-arid, dynamic agroforestry system of ‘Mollesnejta’ exist and how the species, family and age of trees are related to the respective degree of mycorrhizal intensity. This information is in turn used to decrypt relationships between nutrient provision and nutrient security in agroforestry systems and to improve them especially concerning current climate change. The results reveal that in the examined agroforestry system arbuscular mycorrhizal partnerships were found on all ten considered tree species in this study in the varying intensity of the mycorrhizal structure dependent on tree species and their plant family. Nevertheless, no statistical correlation between the number of mycorrhizal elements according to primary hyphae, ramification or vesicles about the age of the trees could be proven in this study.
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Affiliation(s)
- Maxim Schunevitsch
- Student of Phytotechnology in Horticulture, Beuth University of Applied Science, Berlin, Germany
| | - Philipp Lichtenauer
- Student of Phytotechnology in Horticulture, Beuth University of Applied Science, Berlin, Germany
| | - Nora Medrano Mercado
- Lab. De Chagas e Inmunoparasitologia-Depto. De Biologia- Fac. de Ciencias y Tecnologia-Univ Mayor de San Simon, Cochabamba, Bolivia
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Shao X, Wang L, Zhang Q, Liu Y, Yang X. Future direction of searching for root economics spectrum: focusing on the fibrous roots “absorptive unit”. Ecosphere 2019. [DOI: 10.1002/ecs2.2716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Xinliang Shao
- College of Forestry Henan Agricultural University Zhengzhou 450002 China
- Zhengzhou Yaoling Technology Co., Ltd. Zhengzhou 450000 China
| | - Lijun Wang
- College of Light Industry and Food Engineering Guangxi University Nanning 530004 China
| | - Qin Zhang
- Zhengzhou Yaoling Technology Co., Ltd. Zhengzhou 450000 China
| | - Yuhui Liu
- Zhengzhou Yaoling Technology Co., Ltd. Zhengzhou 450000 China
| | - Xitian Yang
- College of Forestry Henan Agricultural University Zhengzhou 450002 China
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Wu Q, Tang Y, Dong T, Liao Y, Li D, He X, Xu X. Additional AM Fungi Inoculation Increase Populus cathayana Intersexual Competition. FRONTIERS IN PLANT SCIENCE 2018; 9:607. [PMID: 29868065 PMCID: PMC5951968 DOI: 10.3389/fpls.2018.00607] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 04/17/2018] [Indexed: 05/14/2023]
Abstract
Sex-specific responses to mycorrhiza have been reported in dioecious plant species, but little attention has been paid to the influence of arbuscular mycorrhizal (AM) fungi on competitive ability under intersexual competition. To further address whether this competition is affected by an additional AM fungi supply, Populus cathayana saplings were chosen and subjected to two mycorrhizal treatments [inoculated and non-inoculated (control) with an additional AM fungi Funneliformis mosseae] while growing with the opposite sex for 3 months. Compared with the control, the additional AM fungi inoculation induced P. cathayana saplings to exhibit significant sexual differences in root structure and nutrient uptake (e.g., cortical layer, cross-section area, radius of root tips, and N, K, and Mg content), and enlarged sexual differences in morphology and biomass accumulation (e.g., leaf number increment, shoot height increment, total leaf area, total specific root length, stem dry mass, leaf dry mass, and total dry mass). Meanwhile, inoculated females presented higher values in most of these traits mentioned above than males under intersexual competition. Therefore, we conclude that the intersexual competition can be increased by an additional AM fungi supply, with females gaining more symbiosis-mediated benefits than males.
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Affiliation(s)
- Qiuping Wu
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, China
| | - Yun Tang
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, China
| | - Tingfa Dong
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, China
- Institute of Plant Adaptation and Utilization in Southwest Mountain, China West Normal University, Nanchong, China
| | - Yongmei Liao
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, China
| | - Dadong Li
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, China
| | - Xinhua He
- Centre of Excellence for Soil Biology, College of Resources and Environment, Southwest University, Beibei, China
| | - Xiao Xu
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, China
- College of Grassland, Resources, and Environment, Inner Mongolia Agricultural University, Hohhot, China
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Vahabi K, Reichelt M, Scholz SS, Furch ACU, Matsuo M, Johnson JM, Sherameti I, Gershenzon J, Oelmüller R. Alternaria Brassicae Induces Systemic Jasmonate Responses in Arabidopsis Which Travel to Neighboring Plants via a Piriformsopora Indica Hyphal Network and Activate Abscisic Acid Responses. FRONTIERS IN PLANT SCIENCE 2018; 9:626. [PMID: 29868082 PMCID: PMC5952412 DOI: 10.3389/fpls.2018.00626] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 04/20/2018] [Indexed: 05/20/2023]
Abstract
Stress information received by a particular local plant tissue is transferred to other tissues and neighboring plants, but how the information travels is not well understood. Application of Alternaria Brassicae spores to Arabidopsis leaves or roots stimulates local accumulation of jasmonic acid (JA), the expression of JA-responsive genes, as well as of NITRATE TRANSPORTER (NRT)2.5 and REDOX RESPONSIVE TRANSCRIPTION FACTOR1 (RRTF1). Infection information is systemically spread over the entire seedling and propagates radially from infected to non-infected leaves, axially from leaves to roots, and vice versa. The local and systemic NRT2.5 responses are reduced in the jar1 mutant, and the RRTF1 response in the rbohD mutant. Information about A. brassicae infection travels slowly to uninfected neighboring plants via a Piriformospora Indica hyphal network, where NRT2.5 and RRTF1 are up-regulated. The systemic A. brassicae-induced JA response in infected plants is converted to an abscisic acid (ABA) response in the neighboring plant where ABA and ABA-responsive genes are induced. We propose that the local threat information induced by A. brassicae infection is spread over the entire plant and transferred to neighboring plants via a P. indica hyphal network. The JA-specific response is converted to a general ABA-mediated stress response in the neighboring plant.
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Affiliation(s)
- Khabat Vahabi
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Jena, Germany
| | - Michael Reichelt
- Department of Biochemistry, Max-Planck Institute for Chemical Ecology, Jena, Germany
| | - Sandra S. Scholz
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Jena, Germany
| | - Alexandra C. U. Furch
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Jena, Germany
| | - Mitsuhiro Matsuo
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Jena, Germany
| | - Joy M. Johnson
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Jena, Germany
| | - Irena Sherameti
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Jena, Germany
| | - Jonathan Gershenzon
- Department of Biochemistry, Max-Planck Institute for Chemical Ecology, Jena, Germany
| | - Ralf Oelmüller
- Department of Plant Physiology, Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Friedrich-Schiller-University Jena, Jena, Germany
- *Correspondence: Ralf Oelmüller
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Vannini A, Guarnieri M, Paoli L, Sorbo S, Basile A, Loppi S. Bioaccumulation, physiological and ultrastructural effects of glyphosate in the lichen Xanthoria parietina (L.) Th. Fr. CHEMOSPHERE 2016; 164:233-240. [PMID: 27591374 DOI: 10.1016/j.chemosphere.2016.08.058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 08/11/2016] [Accepted: 08/12/2016] [Indexed: 06/06/2023]
Abstract
This study compared bioaccumulation as well as physiological (content of ergosterol as marker of fungal vitality and photosynthetic efficiency as marker of algal vitality) and ultrastructural effects of glyphosate in the lichen Xanthoria parietina, with the herbicide being provided either by soaking or spraying of the samples. The results showed that bioaccumulation of glyphosate is fast and proportional to the dose supplied, and is independent on the way it is supplied. Toxic effects resulting from glyphosate uptake by both soaking and spraying were evident at physiological and ultrastructural level, both in the algal and fungal partner, with negative effects being generally dose- and time-dependent. Since our results showed that the concentration of glyphosate bioaccumulated in X. parietina remains stable (at least up to 90 days), a perspective is open for using lichens in biomonitoring of atmospheric pollution by glyphosate as a side effect of the application of this herbicide.
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Affiliation(s)
- Andrea Vannini
- Department of Life Sciences, University of Siena, Via P.A. Mattioli 4, I-53100, Siena, Italy
| | - Massimo Guarnieri
- Department of Life Sciences, University of Siena, Via P.A. Mattioli 4, I-53100, Siena, Italy
| | - Luca Paoli
- Department of Life Sciences, University of Siena, Via P.A. Mattioli 4, I-53100, Siena, Italy
| | - Sergio Sorbo
- CeSMA, University of Naples Federico II, Via Cinthia, I-80126, Napoli, Italy
| | - Adriana Basile
- Department of Biology, University of Naples Federico II, Via Foria 223, I-80139, Napoli, Italy
| | - Stefano Loppi
- Department of Life Sciences, University of Siena, Via P.A. Mattioli 4, I-53100, Siena, Italy
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Cicatelli A, Castiglione S. A step forward in tree physiological research on soil copper contamination. TREE PHYSIOLOGY 2016; 36:403-406. [PMID: 27009117 DOI: 10.1093/treephys/tpw014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 02/14/2016] [Indexed: 06/05/2023]
Affiliation(s)
- Angela Cicatelli
- Dipartimento di Chimica e Biologia 'A. Zambelli', Università degli Studi di Salerno, Fisciano (SA) 84084, Italy
| | - Stefano Castiglione
- Dipartimento di Chimica e Biologia 'A. Zambelli', Università degli Studi di Salerno, Fisciano (SA) 84084, Italy
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16
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Vannini A, Guarnieri M, Bačkor M, Bilová I, Loppi S. Uptake and toxicity of glyphosate in the lichen Xanthoria parietina (L.) Th. Fr. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 122:193-7. [PMID: 26247898 DOI: 10.1016/j.ecoenv.2015.07.030] [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: 04/27/2015] [Revised: 07/22/2015] [Accepted: 07/27/2015] [Indexed: 06/04/2023]
Abstract
This study investigated if treatment of the lichen Xanthoria parietina (L.) Th. Fr. with glyphosate caused uptake of this herbicide as well as physiological alterations. Samples were treated with Glifene SL®, a common commercial glyphosate-based herbicide, at the lowest recommended doses (3.6g/L) as well as with doses slightly higher than the highest suggested (36 g/L). The results clearly showed glyphosate uptake in X. parietina proportionally to the dose provided. Adverse physiological effects were evident on the photosynthetic apparatus (photosynthetic efficiency, chlorophyll a content, chlorophyll degradation) as well as on the fungal respiration rates and cell membrane integrity (ergosterol content, dehydrogenase activity) already after 24h from treatment, also at the low application dose. It is concluded that lichens are suitable organisms for monitoring unwanted biological effects from the application of glyphosate-based herbicides, as well as for detecting the accumulation of this compound in the biota, thus screening for its environmental fate.
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Affiliation(s)
- Andrea Vannini
- Department of Life Sciences, University of Siena, via P.A. Mattioli 4, I-53100 Siena, Italy.
| | - Massimo Guarnieri
- Department of Life Sciences, University of Siena, via P.A. Mattioli 4, I-53100 Siena, Italy
| | - Martin Bačkor
- Institute of Biology and Ecology, P.J. Šafárik University, Manesova 23, 040 01 Košice, Slovakia
| | - Ivana Bilová
- Institute of Biology and Ecology, P.J. Šafárik University, Manesova 23, 040 01 Košice, Slovakia
| | - Stefano Loppi
- Department of Life Sciences, University of Siena, via P.A. Mattioli 4, I-53100 Siena, Italy
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Nygren P, Leblanc HA. Dinitrogen fixation by legume shade trees and direct transfer of fixed N to associated cacao in a tropical agroforestry system. TREE PHYSIOLOGY 2015; 35:134-147. [PMID: 25618898 DOI: 10.1093/treephys/tpu116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Natural abundance of (15)N (δ (15)N) was determined in bulk soil, rhizospheric soil and vegetation in an organically managed cacao (Theobroma cacao L.) plantation with Inga edulis Mart. legume trees (inga) as the principal shade for studying the nitrogen (N) cycle in the system. Cacao without contact with legumes in an adjacent plantation was used as the reference for N2 fixation and direct N transfer calculations. Bulk and rhizospheric soils contained 72 and 20%, respectively, of whole- system N. No vegetation effect on δ (15)N in rhizospheric soil was detected, probably due to the high native soil N pool. Fine roots of the cacaos associated with inga contained ∼35% of N fixed from the atmosphere (Nf) out of the total N. Leaves of all species had significantly higher δ (15)N than fine roots. Twenty percent of system Nf was found in cacao suggesting direct N transfer from inga via a common mycelial network of mycorrhizal fungi or recycling of N-rich root exudates of inga. Inga had accumulated 98 kg [Nf] ha(-1) during the 14-year history of the plantation. The conservative estimate of current N2 fixation rate was 41 kg [Nf] ha(-1) year(-1) based on inga biomass only and 50 kg [Nf] ha(-1) year(-1) based on inga and associated trees.
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Affiliation(s)
- Pekka Nygren
- Department of Forest Science PO Box 27, 00014 University of Helsinki Finland Current address: Finnish Society of Forest Science, PO Box 18, 01301 Vantaa Finland
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18
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19
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Resource Transfer Between Plants Through Ectomycorrhizal Fungal Networks. ECOLOGICAL STUDIES 2015. [DOI: 10.1007/978-94-017-7395-9_5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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20
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Liu Q, Lu D, Jin H, Yan Z, Li X, Yang X, Guo H, Qin B. Allelochemicals in the rhizosphere soil of Euphorbia himalayensis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8555-8561. [PMID: 25088250 DOI: 10.1021/jf502020v] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Weed infestation has been known to cause considerable reductions in crop yields, thereby hindering sustainable agriculture. Many plants in genus Euphorbia affect neighboring plants and other organisms by releasing chemicals into the environment. In view of the serious threat of weeds to agriculture, the allelochemicals of Euphorbia himalayensis and their allelopathic effects were investigated. The extract of root exudates from rhizosphere soil exhibited allelopathic activities against crops (wheat, rape, and lettuce) and grasses (Poa annua, Festuca rubra, and red clover). Bioassay-guided fractionation and isolation from the root extract of E. himalayensis led to the characterization of two ellagic acid derivatives and a jatrophane diterpene, which observably showed phytotoxic activities against lettuce, Festuca arundinacea, and F. rubra. They were further confirmed by ultra-performance liquid chromatography-tandem mass spectrometry to have concentrations of 3.6, 3.8, and 8.99 nmol/g in the rhizospere soil, respectively. Bioassay indicated that the combination of the allelochemicals could be selective plant growth regulator in agriculture.
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Affiliation(s)
- Quan Liu
- Key Laboratory of Chemistry of Northwestern Plant Resources of the Chinese Academy of Sciences (CAS) and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou, Gansu 730000, People's Republic of China
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21
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Nadeem SM, Ahmad M, Zahir ZA, Javaid A, Ashraf M. The role of mycorrhizae and plant growth promoting rhizobacteria (PGPR) in improving crop productivity under stressful environments. Biotechnol Adv 2014; 32:429-48. [DOI: 10.1016/j.biotechadv.2013.12.005] [Citation(s) in RCA: 328] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 12/17/2013] [Accepted: 12/19/2013] [Indexed: 10/25/2022]
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22
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Hijacking common mycorrhizal networks for herbivore-induced defence signal transfer between tomato plants. Sci Rep 2014; 4:3915. [PMID: 24468912 PMCID: PMC3904153 DOI: 10.1038/srep03915] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 01/13/2014] [Indexed: 11/08/2022] Open
Abstract
Common mycorrhizal networks (CMNs) link multiple plants together. We hypothesized that CMNs can serve as an underground conduit for transferring herbivore-induced defence signals. We established CMN between two tomato plants in pots with mycorrhizal fungus Funneliformis mosseae, challenged a 'donor' plant with caterpillar Spodoptera litura, and investigated defence responses and insect resistance in neighbouring CMN-connected 'receiver' plants. After CMN establishment caterpillar infestation on 'donor' plant led to increased insect resistance and activities of putative defensive enzymes, induction of defence-related genes and activation of jasmonate (JA) pathway in the 'receiver' plant. However, use of a JA biosynthesis defective mutant spr2 as 'donor' plants resulted in no induction of defence responses and no change in insect resistance in 'receiver' plants, suggesting that JA signalling is required for CMN-mediated interplant communication. These results indicate that plants are able to hijack CMNs for herbivore-induced defence signal transfer and interplant defence communication.
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23
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Simard SW, Beiler KJ, Bingham MA, Deslippe JR, Philip LJ, Teste FP. Mycorrhizal networks: Mechanisms, ecology and modelling. FUNGAL BIOL REV 2012. [DOI: 10.1016/j.fbr.2012.01.001] [Citation(s) in RCA: 157] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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24
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Fungal biomass production in response to elevated atmospheric CO2 in a Glomus mosseae–Prunus cerasifera model system. Mycol Prog 2010. [DOI: 10.1007/s11557-010-0721-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Ceccarelli N, Curadi M, Picciarelli P, Martelloni L, Sbrana C, Giovannetti M. Globe artichoke as a functional food. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2010. [DOI: 10.1007/s12349-010-0021-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Agnati LF, Baluska F, Barlow PW, Guidolin D. Mosaic, self-similarity logic, and biological attraction principles: three explanatory instruments in biology. Commun Integr Biol 2010; 2:552-63. [PMID: 20195461 DOI: 10.4161/cib.2.6.9644] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 07/27/2009] [Accepted: 07/27/2009] [Indexed: 11/19/2022] Open
Abstract
From a structural standpoint, living organisms are organized like a nest of Russian matryoshka dolls, in which structures are buried within one another. From a temporal point of view, this type of organization is the result of a history comprised of a set of time backcloths which have accompanied the passage of living matter from its origins up to the present day. The aim of the present paper is to indicate a possible course of this 'passage through time, and suggest how today's complexity has been reached by living organisms. This investigation will employ three conceptual tools, namely the Mosaic, Self-Similarity Logic, and the Biological Attraction principles. Self-Similarity Logic indicates the self-consistency by which elements of a living system interact, irrespective of the spatiotemporal level under consideration. The term Mosaic indicates how, from the same set of elements assembled according to different patterns, it is possible to arrive at completely different constructions: hence, each system becomes endowed with different emergent properties. The Biological Attraction principle states that there is an inherent drive for association and merging of compatible elements at all levels of biological complexity. By analogy with the gravitation law in physics, biological attraction is based on the evidence that each living organism creates an attractive field around itself. This field acts as a sphere of influence that actively attracts similar fields of other biological systems, thereby modifying salient features of the interacting organisms. Three specific organizational levels of living matter, namely the molecular, cellular, and supracellular levels, have been considered in order to analyse and illustrate the interpretative as well as the predictive roles of each of these three explanatory principles.
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Affiliation(s)
- Luigi F Agnati
- Department of BioMedical Sciences, University of Modena and IRCCS Lido, Venezia, Italy.
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27
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Plant–microbes interactions in enhanced fertilizer-use efficiency. Appl Microbiol Biotechnol 2009; 85:1-12. [DOI: 10.1007/s00253-009-2196-0] [Citation(s) in RCA: 299] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Revised: 08/07/2009] [Accepted: 08/08/2009] [Indexed: 10/20/2022]
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28
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Agnati LF, Fuxe K, Baluška F, Guidolin D. Implications of the ‘Energide’ concept for communication and information handling in the central nervous system. J Neural Transm (Vienna) 2009; 116:1037-52. [DOI: 10.1007/s00702-009-0193-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Accepted: 01/28/2009] [Indexed: 12/11/2022]
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Mikkelsen BL, Rosendahl S, Jakobsen I. Underground resource allocation between individual networks of mycorrhizal fungi. THE NEW PHYTOLOGIST 2008; 180:890-8. [PMID: 18801003 DOI: 10.1111/j.1469-8137.2008.02623.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Fusions between individual mycelia of arbuscular mycorrhizal (AM) fungi have been observed in two-dimensional systems but never in soil systems. Here, phosphorus ((32)P) labelling was used to demonstrate nutrient transfer between individual mycelia and to investigate the possible role of anastomosis. Trifolium subterraneum colonized by Glomus mosseae were grown in root-retaining mesh bags, which were placed 20 cm apart. The mycelium of one plant, the donor, had access to (32)P-labelled soil placed adjacent to the mesh bag. Transfer of (32)P from the donor mycelium to the receiver plant was measured at three harvests. In a second-harvest control treatment the receiver was colonized by Glomus caledonium in order to determine whether transfer occurred by other means than hyphal fusions. Significant amounts of P were transferred to the receiver plant at the last harvests when the two mycelia of G. mosseae overlapped. The transfer probably occurred via anastomoses between the mycelia as no transfer of (32)P was detected between the mycelia of different fungi at the second harvest. The indicated ability of AM fungal mycelia to anastomose in soil has implications for the formation of large plant-interlinking functional networks, long-distance nutrient transport and retention of nutrients in readily plant-available pools.
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Affiliation(s)
- Bolette L Mikkelsen
- Biosystems Department, Risø National Laboratory for Sustainable Energy, Technical University of Denmark, P.O. Box 49, DK-4000 Roskilde, Denmark
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Sbrana C, Nuti MP, Giovannetti M. Self-anastomosing ability and vegetative incompatibility of Tuber borchii isolates. MYCORRHIZA 2007; 17:667-675. [PMID: 17721790 DOI: 10.1007/s00572-007-0144-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Accepted: 07/17/2007] [Indexed: 05/16/2023]
Abstract
In this work, different mycelial isolates of the ectomycorrhizal fungus Tuber borchii were analysed for their ability to form self-anastomoses, which were monitored by time-lapse live-cell imaging, providing a description of the anastomosis process. Self-fusions were evidenced in three out of five isolates, with frequencies ranging between 50 and 88% of hyphal contacts. Time-lapse video microscopy evidenced that during pre-contact events, hyphae were capable of growth re-orientation functional to hyphal contact: the time elapsed between hyphal growth re-direction and complete fusion ranged from 115 to 200 min. After anastomosis, protoplasmic flow occurred between fused hyphae and nuclei could be detected in fusion bridges. Vegetative incompatibility was also assessed by analysing macroscopic and microscopic hyphal interactions between paired T. borchii mycelia. Both plate-pairing tests and microscopic analyses showed vegetative compatibility only within the same isolate, whereas different degrees of incompatible responses were observed in inter-isolate pairings. The diversity of T. borchii strains revealed by cytomorphological approaches is consistent with their genetic diversity obtained by molecular methods.
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Affiliation(s)
- Cristiana Sbrana
- Institute of Biology and Agricultural Biotechnology C.N.R., UO Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - Marco P Nuti
- Department of Crop Plant Biology, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
| | - Manuela Giovannetti
- Department of Crop Plant Biology, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy.
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Beaubois E, Girard S, Lallechere S, Davies E, Paladian F, Bonnet P, Ledoigt G, Vian A. Intercellular communication in plants: evidence for two rapidly transmitted systemic signals generated in response to electromagnetic field stimulation in tomato. PLANT, CELL & ENVIRONMENT 2007; 30:834-44. [PMID: 17547655 DOI: 10.1111/j.1365-3040.2007.01669.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Exposing all of a wild-type tomato plant to electromagnetic radiation evoked rapid and substantial accumulation of basic leucine-zipper transcription factor (bZIP) mRNA in the terminal leaf (#4) with kinetics very similar to that seen in response to wounding, while in the abscisic acid (ABA) mutant (Sitiens), the response was more rapid, but transient. Submitting just the oldest leaf (#1) of a wild-type plant to irradiation evoked bZIP mRNA accumulation both locally in the exposed leaf and systemically in the unexposed (distant) leaf #4, although systemic accumulation was delayed somewhat. Accumulation of Pin2 mRNA was less than bZIP in both the exposed and distant leaves in wild type, but there was no delay in the systemic response. In Sitiens, bZIP mRNA accumulation was far less than in wild type in both local and distant leaves, while Pin2 mRNA accumulation was stronger in the exposed leaf, but totally prevented in the systemic leaf. In the jasmonic acid (JA) mutant (JL-5) and in wild-type plants treated with the ABA biosynthesis inhibitor, naproxen, responses were similar to those in the ABA mutant, while treatment of the exposed leaf with calcium antagonists totally abolished both local and systemic increases in bZIP transcript accumulation.
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32
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Avio L, Pellegrino E, Bonari E, Giovannetti M. Functional diversity of arbuscular mycorrhizal fungal isolates in relation to extraradical mycelial networks. THE NEW PHYTOLOGIST 2006; 172:347-57. [PMID: 16995921 DOI: 10.1111/j.1469-8137.2006.01839.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We investigated the functional significance of extraradical mycorrhizal networks produced by geographically different isolates of the arbuscular mycorrhizal fungal (AMF) species Glomus mosseae and Glomus intraradices. A two-dimensional experimental system was used to visualize and quantify intact extraradical mycelium (ERM) spreading from Medicago sativa roots. Growth, phosphorus (P) and nitrogen (N) nutrition were assessed in M. sativa plants grown in microcosms. The AMF isolates were characterized by differences in extent and interconnectedness of ERM. Phenotypic fungal variables, such as total hyphal length, hyphal density, hyphal length per mm of total or colonized root length, were positively correlated with M. sativa growth response variables, such as total shoot biomass and plant P content. The utilization of an experimental system in which size, growth rate, viability and interconnectedness of ERM extending from mycorrhizal roots are easily quantified under realistic conditions allows the simultaneous evaluation of different isolates and provides data with a predictive value for selection of efficient AMF.
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Affiliation(s)
- Luciano Avio
- Institute of Biology and Agricultural Biotechnology, UO Pisa, CNR, Via del Borghetto 80, 56124 Pisa, Italy
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