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Boukteb A, Sato K, Gan P, Kharrat M, Sakouhi H, Shibata A, Shirasu K, Ichihashi Y, Bouhadida M. Global changes in gene expression during compatible and incompatible interactions of faba bean (Vicia faba L.) during Orobanche foetida parasitism. PLoS One 2024; 19:e0301981. [PMID: 38626155 PMCID: PMC11020376 DOI: 10.1371/journal.pone.0301981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 03/26/2024] [Indexed: 04/18/2024] Open
Abstract
Orobanche foetida Poiret is the main constraint facing faba bean crop in Tunisia. Indeed, in heavily infested fields with this parasitic plant, yield losses may reach 90%, and the recent estimation of the infested area is around 80,000 ha. Identifying genes involved in the Vicia faba/O. foetida interaction is crucial for the development of effective faba bean breeding programs. However, there is currently no available information on the transcriptome of faba bean responding to O. foetida parasitism. In this study, we employed RNA sequencing to explore the global gene expression changes associated with compatible and incompatible V. faba/O. foetida interactions. In this perspective, two faba bean varieties (susceptible and resistant) were examined at the root level across three stages of O. foetida development (Before Germination (BG), After Germination (AG) and Tubercule Stage (TS)). Our analyses presented an exploration of the transcriptomic profile, including comprehensive assessments of differential gene expression and Gene Ontology (GO) enrichment analyses. Specifically, we investigated key pathways revealing the complexity of molecular responses to O. foetida attack. In this study, we detected differential gene expression of pathways associated with secondary metabolites: flavonoids, auxin, thiamine, and jasmonic acid. To enhance our understanding of the global changes in V. faba response to O. foetida, we specifically examined WRKY genes known to play a role in plant host-parasitic plant interactions. Furthermore, considering the pivotal role of parasitic plant seed germination in this interaction, we investigated genes involved in the orobanchol biosynthesis pathway. Interestingly, we detected the gene expression of VuCYP722C homolog, coding for a key enzyme involved in orobanchol biosynthesis, exclusively in the susceptible host. Clearly, this study enriches our understanding of the V. faba/O. foetida interaction, shedding light on the main differences between susceptible and resistant faba bean varieties during O. foetida infestation at the gene expression level.
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Affiliation(s)
- Amal Boukteb
- Faculty of Science of Tunis, University of Tunis El Manar, Tunis, Tunisia
- Field Crop Laboratory, National Institute of Agricultural Research of Tunisia, Carthage University, Tunis, Tunisia
| | - Kazuki Sato
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Pamela Gan
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Mohamed Kharrat
- Field Crop Laboratory, National Institute of Agricultural Research of Tunisia, Carthage University, Tunis, Tunisia
| | - Hanen Sakouhi
- Field Crop Laboratory, National Institute of Agricultural Research of Tunisia, Carthage University, Tunis, Tunisia
| | - Arisa Shibata
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Ken Shirasu
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | | | - Mariem Bouhadida
- Field Crop Laboratory, National Institute of Agricultural Research of Tunisia, Carthage University, Tunis, Tunisia
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Ramírez-Parra E, De la Rosa L. Designing Novel Strategies for Improving Old Legumes: An Overview from Common Vetch. PLANTS (BASEL, SWITZERLAND) 2023; 12:1275. [PMID: 36986962 PMCID: PMC10058852 DOI: 10.3390/plants12061275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Common vetch (Vicia sativa L.) is a grain legume used in animal feeding, rich in protein content, fatty acid, and mineral composition that makes for a very adequate component to enrich feedstuff. In addition, relevant pharmacological properties have been reported in humans. The common vetch, similar to other legumes, can fix atmospheric nitrogen, a crucial feature for sustainable agricultural systems. These properties enhance the use of vetch as a cover crop and its sowing in intercropping systems. Moreover, several studies have recently pointed out the potential of vetch in the phytoremediation of contaminated soils. These characteristics make vetch a relevant crop, which different potential improvements target. Varieties with different yields, flowering times, shattering resistance, nutritional composition, rhizobacteria associations, drought tolerance, nitrogen fixation capacity, and other agronomic-relevant traits have been identified when different vetch accessions are compared. Recently, the analysis of genomic and transcriptomic data has allowed the development of different molecular markers to be used for assisted breeding purposes, promoting crop improvement. Here, we review the potential of using the variability of V. sativa genetic resources and new biotechnological and molecular tools for selecting varieties with improved traits to be used in sustainable agriculture systems.
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Affiliation(s)
- Elena Ramírez-Parra
- Centro de Biotecnología y Genómica de Plantas, (CBGP, UPM-INIA/CSIC) Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas, Universidad Politécnica de Madrid, Campus de Montegancedo, Pozuelo de Alarcón, 28223 Madrid, Spain
| | - Lucía De la Rosa
- Centro de Recursos Fitogenéticos, (CRF-INIA/CSIC) Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas, Alcalá de Henares, 28805 Madrid, Spain
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Boukteb A, Sakaguchi S, Ichihashi Y, Kharrat M, Nagano AJ, Shirasu K, Bouhadida M. Analysis of Genetic Diversity and Population Structure of Orobanche foetida Populations From Tunisia Using RADseq. FRONTIERS IN PLANT SCIENCE 2021; 12:618245. [PMID: 33927733 PMCID: PMC8078179 DOI: 10.3389/fpls.2021.618245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/10/2021] [Indexed: 05/25/2023]
Abstract
Orobanche foetida Poiret is a holoparasitic plant that lacks chlorophyll and totally depending on its host for its growth. Orobanche foetida parasitizes host plant roots and extract nutrient and water via a haustorium. Although O. foetida distributes in the Mediterranean region as a wild plant parasite, it parasitizes faba bean causing serious damages which may reach 90% yield losses in Tunisia. Analysis of genetic diversity of the parasite is important to better understand its evolution and spread, remained largely unknown. In this work, we present the first study on genetic diversity and population structure using the robust technique Restriction-site-Associated DNA sequencing (RADseq) for Orobanche spp. We collected 244 samples of O. foetida from 18 faba bean fields in the north of Tunisia including 17 populations from the north-west and one population form the north-east. To overcome the difficulty of SNP discovery in O. foetida genome as a non-model and tetraploid plant, we utilized three different informatics pipelines, namely UNEAK, pyRAD and Stacks. This study showed that genetic differentiation occurred in the Tunisian O. foetida emphasizing the isolation by distance effect. However, no strong population clustering was detected in this work basing on the three data sets and clustering methods used. The present study shed the light on the current distribution and the genetic variation situation of the fetid broomrape in Tunisia, highlighting the importance of understanding the evolution of this parasite and its genetic background. This will aid in developing efficient strategies to control this parasite and its expansion in Tunisia and worldwide.
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Affiliation(s)
- Amal Boukteb
- Faculty of Science of Tunis, University of Tunis El Manar, Tunis, Tunisia
- Field Crop Laboratory, National Institute of Agricultural Research of Tunisia, Carthage University, Tunis, Tunisia
| | - Shota Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan
| | | | - Mohamed Kharrat
- Field Crop Laboratory, National Institute of Agricultural Research of Tunisia, Carthage University, Tunis, Tunisia
| | | | - Ken Shirasu
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Mariem Bouhadida
- Field Crop Laboratory, National Institute of Agricultural Research of Tunisia, Carthage University, Tunis, Tunisia
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Brahmi I, Mabrouk Y, Brun G, Delavault P, Belhadj O, Simier P. Phenotypical and biochemical characterisation of resistance for parasitic weed (Orobanche foetida Poir.) in radiation-mutagenised mutants of chickpea. PEST MANAGEMENT SCIENCE 2016; 72:2330-2338. [PMID: 26997099 DOI: 10.1002/ps.4278] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/16/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Some radiation-mutagenised chickpea mutants potentially resistant to the broomrape, Orobanche foetida Poir., were selected through field trials. The objectives of this work were to confirm resistance under artificial infestation, in pots and mini-rhizotron systems, and to determine the developmental stages of broomrape affected by resistance and the relevant resistance mechanisms induced by radiation mutagenesis. RESULTS Among 30 mutants tested for resistance to O. foetida, five shared strong resistance in both pot experiments and mini-rhizotron systems. Resistance was not complete, but the few individuals that escaped resistance displayed high disorders of shoot development. Results demonstrated a 2-3-fold decrease in stimulatory activity of root exudates towards broomrape seed germination in resistant mutants in comparison with non-irradiated control plants and susceptible mutants. Resistance was associated with an induction of broomrape necrosis early during infection. When infested, most of the resistant mutants shared enhanced levels of soluble phenolic contents, phenylalanine ammonia lyase activity, guaiacol peroxidase activity and polyphenol oxidase activity, in addition to glutathione and notably ascorbate peroxidase gene expression in roots. CONCLUSION Results confirmed enhanced resistance in chickpea radiation-mutagenised mutants, and demonstrated that resistance is based on alteration of root exudation, presumed cell-wall reinforcement and change in root oxidative status in response to infection. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Ines Brahmi
- Laboratoire de Biochimie et de Technobiologie, Faculté des Sciences de Tunis, Université de Tunis, Tunis, Tunisia
- Laboratoire de Biologie et Pathologies Végétales, Université de Nantes, Nantes, France
| | - Yassine Mabrouk
- Laboratoire de Biochimie et de Technobiologie, Faculté des Sciences de Tunis, Université de Tunis, Tunis, Tunisia
- Unité d'Utilisation Médicale et Agricole des Techniques Nucléaires, Centre National des Sciences et Technologies Nucléaires, Sidi Thabet, Tunisia
| | - Guillaume Brun
- Laboratoire de Biologie et Pathologies Végétales, Université de Nantes, Nantes, France
| | - Philippe Delavault
- Laboratoire de Biologie et Pathologies Végétales, Université de Nantes, Nantes, France
| | - Omrane Belhadj
- Laboratoire de Biochimie et de Technobiologie, Faculté des Sciences de Tunis, Université de Tunis, Tunis, Tunisia
| | - Philippe Simier
- Laboratoire de Biologie et Pathologies Végétales, Université de Nantes, Nantes, France.
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Rubiales D, Rojas-Molina MM, Sillero JC. Characterization of Resistance Mechanisms in Faba Bean ( Vicia faba) against Broomrape Species ( Orobanche and Phelipanche spp.). FRONTIERS IN PLANT SCIENCE 2016; 7:1747. [PMID: 27920790 PMCID: PMC5118618 DOI: 10.3389/fpls.2016.01747] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Accepted: 11/07/2016] [Indexed: 05/11/2023]
Abstract
Faba bean (Vicia faba) production in Mediterranean and Near East agriculture is severely constrained by broomrape infection. The most widely distributed broomrape species affecting faba bean is Orobanche crenata, although O. foetida and Phelipanche aegyptiaca are of local importance. Only moderately resistant cultivars are available to farmers. Rizotrons studies allowed the dissection of resistance components in faba bean accessions against the very infective species O. crenata, O. foetida var. broteri and P. aegyptiaca, and to the inappropriate P. ramosa and O. foetida var. foetida. Results confirm that some levels of incomplete resistance are available, resulting in a reduced number of broomrape tubercles successfully formed per faba bean plant. Interestingly, the intermediate levels of resistance of cv. Baraca were operative against all broomrape populations and species studied, confirming previous reports on the stability of resistance of Baraca in field trials in different countries. Low induction of seed germination played a major role in the resistance against the inappropriate O. foetida var. foetida but not against the also inappropriate P. ramosa, neither to the infective species O. crenata, O. foetida var. broteri, or P. aegyptiaca. Negative tropism of germinated seeds with radicles growing away from faba bean roots was marked for both inappropriate species but was not observed in any of the infective species. Also, a proportion of radicles that had successfully contacted faba bean roots became necrotic, failing in starting tubercle development, particularly frequent for the two inappropriate species. Such necrosis was significant also on radicles contacting resistant faba bean accessions, being particularly relevant for Spanish O. crenata population, and lower although still significant in some accessions against Syrian O. crenata and P. aegyptiaca, suggesting that this might also be an operative mechanism to be selected and further exploited in faba bean resistance breeding. Even formed broomrape tubercles might later become necrotic, particularly in the case of some of the resistant faba bean accessions to the Spanish O. crenata and to P. aegyptiaca but not to the very infective Syrian O. crenata or O. foetida var. broteri.
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Affiliation(s)
- Diego Rubiales
- CSIC, Institute for Sustainable AgricultureCórdoba, Spain
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Tóth P, Undas AK, Verstappen F, Bouwmeester H. Floral Volatiles in Parasitic Plants of the Orobanchaceae. Ecological and Taxonomic Implications. FRONTIERS IN PLANT SCIENCE 2016; 7:312. [PMID: 27014329 PMCID: PMC4791402 DOI: 10.3389/fpls.2016.00312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 02/29/2016] [Indexed: 05/11/2023]
Abstract
The holoparasitic broomrapes, Orobanche spp. and Phelipanche spp. (Orobanchaceae), are root parasites that completely depend on a host plant for survival and reproduction. There is considerable controversy on the taxonomy of this biologically and agronomically important family. Flowers of over 25 parasitic Orobanchaceae and a number of close, parasitic and non-parasitic, relatives emitted a complex blend of volatile organic compounds (VOCs), consisting of over 130 VOCs per species. Floral VOC blend-based phylogeny supported the known taxonomy in internal taxonomic grouping of genus and eliminated the uncertainty in some taxonomical groups. Moreover, phylogenetic analysis suggested separation of the broomrapes into two main groups parasitizing annual and perennial hosts, and for the annual hosts, into weedy and non-weedy broomrapes. We conclude that floral VOCs are a significant tool in species identification and possibly even in defining new species and can help to improve controversial taxonomy in the Orobanchaceae.
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Affiliation(s)
- Peter Tóth
- Laboratory of Plant Physiology, Wageningen University and Research CentreWageningen, Netherlands
- Department of Plant Protection, Slovak University of Agriculture in NitraNitra, Slovakia
| | - Anna K. Undas
- Laboratory of Plant Physiology, Wageningen University and Research CentreWageningen, Netherlands
- RIKILT, Wageningen University and Research CentreWageningen, Netherlands
| | - Francel Verstappen
- Laboratory of Plant Physiology, Wageningen University and Research CentreWageningen, Netherlands
| | - Harro Bouwmeester
- Laboratory of Plant Physiology, Wageningen University and Research CentreWageningen, Netherlands
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Zhang W, Ma Y, Wang Z, Ye X, Shui J. Some soybean cultivars have ability to induce germination of sunflower broomrape. PLoS One 2013; 8:e59715. [PMID: 23544089 PMCID: PMC3609756 DOI: 10.1371/journal.pone.0059715] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 02/17/2013] [Indexed: 11/19/2022] Open
Abstract
Sunflower broomrape is a noxious parasitic weed which has caused severe damage to crop ecosystems. Trap crops can release a mixture of allelochemicals to induce the germination of sunflower broomrape. We studied the allelopathic effects of soybean on sunflower broomrape. Fourteen common soybean cultivars were grown in pots. Samples were collected from soybean plants and rhizosphere soil at five growth stages (V1, V3, V5, R2, and R4). The allelopathic effects of soybean reached highest at the V3 stage. Methanolic extracts of soybean roots induced higher broomrape germination than methanolic extracts of stems or leaves. The germination rates induced by root extracts (10-fold dilution) were positively correlated with germination rates induced by stem (10-fold dilution) and leaf extracts (10-fold dilution). The broomrape germination rates induced by root extracts were also positively correlated with soybean nodule diameter and dry weight. The results indicated that soybeans could induce sunflower broomrape germination. We conclude that soybean has the potential to be used as a trap crop for sunflower broomrape.
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Affiliation(s)
- Wei Zhang
- College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Yongqing Ma
- College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, China
- The State Key Laboratory of Soil Erosion and Dryland Farming in the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Zhong Wang
- College of Forestry, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Xiaoxin Ye
- College of Forestry, Northwest A&F University, Yangling, Shaanxi Province, China
| | - Junfeng Shui
- College of Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, China
- The State Key Laboratory of Soil Erosion and Dryland Farming in the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi Province, China
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Evidente A, Cimmino A, Andolfi A. The Effect of Stereochemistry on the Biological Activity of Natural Phytotoxins, Fungicides, Insecticides and Herbicides. Chirality 2012. [DOI: 10.1002/chir.22124] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Antonio Evidente
- Dipartimento di Scienze del Suolo; della Pianta, dell'Ambiente e delle Produzioni Animali; Via Università 100 80055 Portici Italy
| | - Alessio Cimmino
- Dipartimento di Scienze del Suolo; della Pianta, dell'Ambiente e delle Produzioni Animali; Via Università 100 80055 Portici Italy
| | - Anna Andolfi
- Dipartimento di Scienze del Suolo; della Pianta, dell'Ambiente e delle Produzioni Animali; Via Università 100 80055 Portici Italy
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Thorogood CJ, Rumsey FJ, Hiscock SJ. Host-specific races in the holoparasitic angiosperm Orobanche minor: implications for speciation in parasitic plants. ANNALS OF BOTANY 2009; 103:1005-14. [PMID: 19251714 PMCID: PMC2707918 DOI: 10.1093/aob/mcp034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2008] [Revised: 12/03/2008] [Accepted: 01/09/2009] [Indexed: 05/09/2023]
Abstract
BACKGROUND AND AIMS Orobanche minor is a root-holoparasitic angiosperm that attacks a wide range of host species, including a number of commonly cultivated crops. The extent to which genetic divergence among natural populations of O. minor is influenced by host specificity has not been determined previously. Here, the host specificity of natural populations of O. minor is quantified for the first time, and evidence that this species may comprise distinct physiological races is provided. METHODS A tripartite approach was used to examine the physiological basis for the divergence of populations occurring on different hosts: (1) host-parasite interactions were cultivated in rhizotron bioassays in order to quantify the early stages of the infection and establishment processes; (2) using reciprocal-infection experiments, parasite races were cultivated on their natural and alien hosts, and their fitness determined in terms of biomass; and (3) the anatomy of the host-parasite interface was investigated using histochemical techniques, with a view to comparing the infection process on different hosts. KEY RESULTS Races occurring naturally on red clover (Trifolium pratense) and sea carrot (Daucus carota ssp. gummifer) showed distinct patterns of host specificity: parasites cultivated in cross-infection studies showed a higher fitness on their natural hosts, suggesting that races show local adaptation to specific hosts. In addition, histological evidence suggests that clover and carrot roots vary in their responses to infection. Different root anatomy and responses to infection may underpin a physiological basis for host specificity. CONCLUSIONS It is speculated that host specificity may isolate races of Orobanche on different hosts, accelerating divergence and ultimately speciation in this genus. The rapid life cycle and broad host range of O. minor make this species an ideal model with which to study the interactions of parasitic plants with their host associates.
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Affiliation(s)
- C. J. Thorogood
- School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK
| | - F. J. Rumsey
- Department of Botany, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | - S. J. Hiscock
- School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK
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Abbes Z, Kharrat M, Delavault P, Chaïbi W, Simier P. Nitrogen and carbon relationships between the parasitic weed Orobanche foetida and susceptible and tolerant faba bean lines. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2009; 47:153-159. [PMID: 19036596 DOI: 10.1016/j.plaphy.2008.10.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2008] [Revised: 10/15/2008] [Accepted: 10/18/2008] [Indexed: 05/26/2023]
Abstract
The parasitic weed Orobanche foetida (Poiret) is an emergent agronomical problem on faba bean in Tunisia. The Tunisian breeding programs for faba bean resistance to O. foetida have produced several tolerant lines including the line XBJ90.03-16-1-1-1, which limits both parasite attachments to the host roots and growth of the attached parasites. The present study aims to provide a better understanding of the nutritional relationships between the parasite and this tolerant line in comparison with the susceptible Bachaar genotype. Phloem saps of faba bean were harvested using phloem exudation experiments. The major organic compounds potentially transferred from both faba bean genotypes to the parasite were identified as sucrose, raffinose, stachyose, citrate, malate, asparagine (ASN), aspartate (ASP), glutamine, glutamate, serine, alanine and GABA. However, the phloem exudates of the tolerant line were highly deficient in nitrogen when compared to that of the susceptible line. When attached to roots of the tolerant line, the parasite displayed limited activities of soluble invertases in tubercles, and especially in shoots, suggesting that the low performance of the broomrapes attached to the tolerant line resulted from a reduced capacity to utilize the host-derived carbohydrates. On the other hand, the mechanisms involved in the osmotic adjustment and primary metabolism of the parasite did not differ significantly according to the host genotype: mineral cations, especially potassium and calcium, predominated as the major osmotically-active compounds in both tubercles and shoots; shoots accumulated preferentially hexoses as organic solutes although tubercles accumulated preferentially starch and soluble amino acids, especially ASP and ASN. This suggests an important role for a glutamine-dependent asparagine synthetase (EC 6.3.5.4) in the N metabolism of the parasite.
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Affiliation(s)
- Zouhaier Abbes
- Institut National de la Recherche Agronomique de Tunisie (INRAT), Laboratoire des Grandes Cultures, Rue Hédi Karray, 2080 Ariana, Tunisia.
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Fernández-Aparicio M, Andolfi A, Cimmino A, Rubiales D, Evidente A. Stimulation of seed germination of Orobanche species by ophiobolin A and fusicoccin derivatives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:8343-8347. [PMID: 18763781 DOI: 10.1021/jf801727y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Various Orobanche species (broomrapes) are serious weed problems and cause severe reduction on yields in many important crops. Seeds of these parasitic weeds may remain dormant in the soil for many years until germination is stimulated by the release of a chemical signal by roots of a host plant. Some fungal metabolites, such as ophiobolin A and fusicoccin derivatives, were assayed to determine their capacity to stimulate the seed germination of several Orobanche species. The results obtained showed that the stimulation of seed germination is species-dependent and also affected by the concentration of the stimulant. Among ophiobolin A, fusicoccin, and its seven derivatives, tested in the concentration range of 10 (-4)-10 (-7) M, the highest stimulatory effect was observed for ophiobolin A and the hexacetyl and pentacetyl isomers of 16- O-demethyl-de- tert-pentenylfusicoccin prepared by chemical modification of the fusicoccin, while the other fusicoccin derivatives appeared to be practically inactive. The most sensitive species appeared to be O. aegyptica, O. cumana, O. minor, and to a lesser extent, O. ramosa.
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Affiliation(s)
- Mónica Fernández-Aparicio
- Instituto de Agricultura Sostenible, Consejo Superior de Investigaciones Científicas (CSIC), Apdo. 4084, 14080 Córdoba, Spain
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