Arbuscular mycorrhizal inoculation enhances plant growth and changes root system morphology in micropropagated Annona cherimola Mill

Padilla, IG; Encina, Carlos López; Azcón, R.; Barea, J. M.

doi:10.1051/agro:19961009

Cited by 30 publications

(14 citation statements)

References 6 publications

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“…Moreover, R. irregularis exhibited a more pronounced influence on root than on shoot growth of M. truncatula. A possible explanation is that AM fungi can directly influence root initiation and branching (eg Azcón-Aguilar et al 1996).…”

Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhizal symbiosis can mitigate the negative effects of night warming on physiological traits of Medicago truncatula L

Sun

et al. 2014

Mycorrhiza

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Elevated night temperature, one of the main climate warming scenarios, can have profound effects on plant growth and metabolism. However, little attention has been paid to the potential role of mycorrhizal associations in plant responses to night warming, although it is well known that symbiotic fungi can protect host plants against various environmental stresses. In the present study, physiological traits of Medicago truncatula L. in association with the arbuscular mycorrhizal (AM) fungus Rhizophagus irregularis were investigated under simulated night warming. A constant increase in night temperature of 1.53°C significantly reduced plant shoot and root biomass, flower and seed number, leaf sugar concentration, and shoot Zn and root P concentrations. However, the AM association essentially mitigated these negative effects of night warming by improving plant growth, especially through increased root biomass, root to shoot ratio, and shoot Zn and root P concentrations. A significant interaction was observed between R. irregularis inoculation and night warming in influencing both root sucrose concentration and expression of sucrose synthase (SusS) genes, suggesting that AM symbiosis and increased night temperature jointly regulated plant sugar metabolism. Night warming stimulated AM fungal colonization but did not influence arbuscule abundance, symbiosis-related plant or fungal gene expression, or growth of extraradical mycelium, indicating little effect of night warming on the development or functioning of AM symbiosis. These findings highlight the importance of mycorrhizal symbiosis in assisting plant resilience to climate warming.

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Section: Discussionmentioning

confidence: 99%

Arbuscular mycorrhizal symbiosis can mitigate the negative effects of night warming on physiological traits of Medicago truncatula L

Sun

et al. 2014

Mycorrhiza

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“…After the first success with the micropropagation of cherimoya and after the studies of BEJOY and HARIHARAN (1992), BLAKE (1996a, 1996b) recorded similar results micropropagating another two important Annonaceae species: Annona muricata and Annona squamosa. As far as it is known, only these three species of genus Annona were successfully micropropagated before 1996 (RASAI et al, 1995) together with the hybrid atemoya or custard apple A. cherimola x A. squamosa (NAIR et al, 1984a) Furthermore, in order to improve the plant recovery rate, in the final stage of the micropropagation process some complementary techniques, such as the mycorrhizal inoculation with Glomus deserticola were applied (AZCÓN-AGUILAR et al, 1994, 1996, the use of VA fungi improved the success of the acclimatization phase, these treatments resulting in an better growth and development of the micropropagated plants. At present, this knowledge are being applied to other related Annona species such as Annona senegalensis, A.…”

Section: Micropropagationmentioning

confidence: 99%

Biotechnology applied to Annona species: a review

et al. 2014

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Annonaceae is an ancient family of plants including approximately 50 genera growing worldwide in a quite restricted area with specific agroclimatic requirements. Only few species of this family has been cultivated and exploited commercially and most of them belonging to the genus Annona such as A. muricata, A. squamosa, the hybrid A. cherimola x A. squamosa and specially Annona cherimola: the cherimoya, commercially cultivated in Spain, Chile, California, Florida, México, Australia, Ecuador, Peru, Brazil, New Zealand and several countries in South and Central America. The cherimoya shows a high degree of heterozygosis, and to obtain homogeneous and productive orchards it is necessary to avoid the propagation by seeds of this species. Additionally, the traditional methods of vegetative propagation were inefficient and inadequate, due to the low morphogenetic potential of this species, and the low rooting rate. The in vitro tissue culture methods of micropropagation can be applied successfully to cherimoya and other Annona sp to overcome these problems. Most of the protocols of micropropagation and regeneration were developed using the cultivar Fino de Jete, which is the major cultivar in Spain. First it is developed the method to micropropagate the juvenile material of cherimoya (ENCINA et al., 1994), and later it was optimized a protocol to micropropagate adult cherimoya genotypes selected by outstanding agronomical traits (PADILLA and ENCINA, 2004) and further it was improved the process through micrografting (PADILLA and ENCINA, 2011).At the present time we are involved in inducing and obtaining new elite genotypes, as part of a breeding program for the cherimoya and other Annonas, using and optimizing different methodologies in vitro: a) Adventitious organogenesis and regeneration from cellular cultures (ENCINA, 2004), b) Ploidy manipulation of the cherimoya, to obtain haploid, tetraploid and triploid plants (seedless), c) Genetic transformation, for the genes introduction to control the postharvest processes and the genes introduction to provide resistance to pathogen and insects and d) Micropropagation and regeneration of other wild Annona or related Annonaceae species such as: Annona senegalensis, A. scleroderma, A. montana, A. reticulata, A. glabra, A. diversifolia and Rollinia sp.

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“…Vestberg and Estaun (1994) published an excellent review on factors affecting the result of mycorrhizal inoculation (timing, medium, fertilization, inoculation, fungus-host specificity, growth substrate, etc.). The potential for biocontrol of plant diseases by AM and ectomycorrhizal fungi was reviewed by Linderman (1994) and Duchesne (1994), respectively. Varma and Schuepp (1995) enlightened the need for mycorrhization and the different role played by AMF.…”

Section: Multifunctionalitymentioning

confidence: 99%

“…In the recent past, hyphae, spores, chlamydospores and mycorrhizal roots have been used as inocula by various mycorrhizologists for in vitro, as well as in vivo mycorrhization. They are also used for establishment of AMF in root organ culture (Mosse and Hepper, 1975;Romand, 1986, 1987;Mugnier and Mosse, 1987;Ravolanirina et al, 1989b;Schubert et al, 1990;Lovato et al, 1992;Williams et al, 1992;Uosukainen and Vestberg, 1996;Azcon-Aguilar et al, 1996;Dolcet-Sanjuan et al, 1996;Declerck et al, 1996b;Morte et al, 1996;Plenchette et al, 1996).…”

Section: Mycorrhization Techniquesmentioning

confidence: 99%

Current advances in mycorrhization in microporopagation

Rai

2001

In Vitro Cell.Dev.Biol.-Plant

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Mycorrhization of in vitro-propagated plantlets is having a`positive impact' on their posttransplanting performance. Different aspects of the technology, such as the need for improvement, screening bioassays for selection of the most effective strains, and determination of the multiple role played by mycorrhiza, are discussed. Various constraints pertaining to the utilization of this technology and their possible solutions, such as the use of mixed cultures and aspects of technology transfer are also reviewed.

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Arbuscular mycorrhizal inoculation enhances plant growth and changes root system morphology in micropropagated Annona cherimola Mill

Cited by 30 publications

References 6 publications

Arbuscular mycorrhizal symbiosis can mitigate the negative effects of night warming on physiological traits of Medicago truncatula L

Arbuscular mycorrhizal symbiosis can mitigate the negative effects of night warming on physiological traits of Medicago truncatula L

Biotechnology applied to Annona species: a review

Current advances in mycorrhization in microporopagation

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