Ricciardi, M. (), La comunicazione. Maestri e paradigmi, Roma– Bari, Laterza. Ricoeur, P. (), Memory, History, Forgetting, translated by K. Blamey and. Ricciardi M. (), La comunicazione. Maestri e paradigmi, Roma-Bari: Editori Laterza. Manovich L. (), Il linguaggio dei nuovi media, Milano: Olivares. Transmedia: Storytelling e comunicazione (Italian Edition). Max Giovagnoli La comunicazione: Maestri e paradigmi (Italian Edition). Mario Ricciardi.
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Clinical recommendations of cardiac magnetic resonance, Part II: The current document was developed by the working group on the ‘application of cardiac magnetic resonance’ of the Italian Society of Cardiology to provide a perspective on the current state of technical advances and clinical cardiac magnetic resonance applications and to inform cardiologists how to implement their clinical and diagnostic pathway with the rivciardi of this technique in the clinical practice.
Appropriateness criteria were defined using a score system: Clinical recommendations of cardiac magnetic resonance, Maestrii I: Cardiac magnetic resonance CMR has emerged as a reliable and accurate diagnostic tool for the evaluation of patients with cardiac disease in several clinical settings and with proven additional diagnostic and prognostic value compared with other imaging modalities.
This document has been developed by the working group on the ‘application of CMR’ of the Italian Society of Cardiology to provide a perspective on the current state of technical advances and clinical applications of CMR and to inform cardiologists on how to implement their clinical and diagnostic pathways with the inclusion of this technique in clinical practice. The writing committee consisted of members of the working group of the Italian Society of Cardiology and two external peer reviewers with acknowledged experience in the field of CMR.
DELLA proteolysis through the ubiquitin-proteasome pathway or through the proteolysis-independent mechanisms. DELLA proteins are transcriptional regulators present in all land plants which have been shown to modulate the activity of over transcription factors in Arabidopsis, involved in multiple physiological and developmental processes.
It has been proposed that DELLAs transduce environmental information to pre-wired transcriptional circuits because their stability is regulated by gibberellins GAswhose homeostasis largely depends on ricciard signals.
To address these issues, we have constructed gene co-expression networks of four different organisms within the green lineage with different properties regarding DELLAs: Network analysis indicates a relative increase in parameters associated with the degree of interconnectivity in the DELLA -associated subnetworks of land plants, with a stronger effect in species with GA-regulated DELLA proteins.
These results suggest that DELLAs may have played a role in the coordination of multiple transcriptional programs along evolution, and the function of DELLAs as regulatory ‘hubs’ became further consolidated after their recruitment by GA signaling in higher plants. DELLA connects gibberellins to microtubules. A new study reveals that DELLA proteins directly interact with the prefoldin complex, thus regulating tubulin subunit availability in a gibberellin-dependent manner.
This finding provides a mechanistic link between the growth-promoting plant hormone gibberellin and cortical microtubule organization.
DELLA genes restrict inflorescence meristem function independently of plant height. DELLA proteins associate with transcription factors to control plant growth in response to gibberellin 1. Semi-dwarf DELLA mutants with improved harvest index and decreased lodging greatly improved global food security during the ‘green revolution’ in the s 2. However, DELLA mutants are pleiotropic and the developmental basis for their effects on plant architecture remains poorly understood.
Here, we show that DELLA proteins have genetically separable roles in controlling stem growth and the size of the inflorescence meristem, where flowers initiate.
In barley, secondary mutations in the DELLA gain-of-function mutant Sln1d 4 also uncoupled meristem and inflorescence size from plant height. Our work reveals an unexpected and conserved role for DELLA genes in controlling shoot meristem function and suggests how dissection of pleiotropic DELLA functions could unlock further yield gains in semi-dwarf mutants.
Summary DELLA proteins associate with transcription factors to control plant growth in response to gibberellin 1. In barley, secondary mutations in the DELLA gain of function mutant Sln1d 4 also uncoupled meristem and inflorescence size from plant height.
DELLA proteins regulate arbuscule formation in arbuscular mycorrhizal symbiosis. Most flowering plants are able to form endosymbioses with arbuscular mycorrhizal fungi. In this mutualistic association, the fungus colonizes the root cortex and establishes elaborately branched hyphae, called arbuscules, within the cortical cells. Arbuscule development requires the cellular reorganization of both symbionts, and the resulting symbiotic interface functions in nutrient exchange.
A plant symbiosis signaling pathway controls the development of the symbiosis. Several components of the pathway have been identified, but transcriptional regulators that control downstream pathways for arbuscule formation are still unknown.
Here we show that DELLA proteins, which are repressors of gibberellic acid GA signaling and function at the nexus of several signaling pathways, are required for arbuscule formation. GA signaling also influences arbuscule formation in monocots, and a Green Revolution wheat variety carrying dominant DELLA alleles shows enhanced colonization but a limited growth response to arbuscular mycorrhizal symbiosis.
Disegno dello studio genomico, ambientale, microbiomico e metabolomico sulla celiachia: An unusual spliced variant of DELLA protein, a negative regulator of gibberellin signaling, in lettuce.
DELLA repression of Arabidopsis seed germination can be lifted through the ubiquitin-proteasome pathway and proteolysis-independent GA signaling. The “Accademia della Crusca” in Italy: An informal organisation that is becoming quite influential in the spread of Italian in Italy, as well as abroad, is the “Accademia della Crusca” which began its activities during the Renaissance, under quite different auspices.
Founded in Florence inthis Academy was inspired by the theories of Pietro Bemboa…. Ariizumi, Tohru; Hauvermale, Amber L. Although DELLA cannot be destroyed in the sleepy sly F-box mutant, long dry after-ripening and GID1 overexpression can relieve the strong sly seed dormancy phenotype. Plant phenotypic plasticity is controlled by diverse hormone pathways, which integrate and convey information from multiple developmental and environmental signals.
Moreover, in plants many processes such as growth, development, and defense are regulated in similar ways by multiple hormones.
Editori Laterza :: Communication. Masters and paradigms
Among them, gibberellins GAs are phytohormones with pleiotropic actions, regulating various growth processes throughout the plant life cycle. Previous comunicaziione has revealed extensive interplay between GAs and other hormones, but the molecular mechanism became apparent only recently. Molecular and physiological studies have demonstrated that DELLA proteins, considered as master negative regulators of GA signaling, integrate multiple hormone signaling pathways through physical interactions with transcription factors or regulatory proteins from different families.
In this review, we summarize the latest progress in GA signaling and its direct crosstalk with the main ricdiardi signaling, emphasizing the multifaceted role of DELLA proteins with key components of major hormone signaling pathways. Published by Elsevier Inc.
The Istituto di Storia della Medicina at Rome University was to a certain extent a one-man achievement. Founded by Adalberto Pazzini inits collections comprehended books, objects, as well as photographs, movies, and other didactic video. The Istituto was also a center for publications, conferences and meetings. The archival sources that document its activity have been re-evaluated and restored in recent years, together with the collections housed in the Library and in the Museum.
Gibberellins GAs participate in controlling various aspects of basic plant growth responses.
Identification and functional analysis of cassava DELLA proteins in plant disease resistance against cassava bacterial blight. Gibberellin GA is an essential plant hormone in plant growth and development as well as various stress responses. However, the in vivo roles of GA and DELLA in cassava, one of the most important crops and energy crops in the tropical area, are unknown.
In this study, systematic genome-wide analysis identified 4 Me DELLAs in cassava, as evidenced by the evolutionary tree, gene structures and motifs analyses. Through overexpression in Nicotiana benthamiana, we found that 4 Me DELLAs conferred improved disease resistance against cassava bacterial blight. Through virus-induced gene silencing VIGS in cassava, we found that Me DELLA -silenced plants exhibited decreased disease resistance, with less callose deposition and lower transcript mwestri of defense-related genes.
This is the first study identifying Me DELLAs as positive regulators of disease resistance against cassava bacterial comunicaxione.
Livne, Sivan; Lor, Vai S. Upon insect herbivory, many plant species change the direction of metabolic flux from growth into defence. In this study, the effect of caterpillar herbivory on plant-induced responses was compared between wild-type Arabidopsis thaliana L. The labial saliva LS of caterpillars of the beet armyworm, Spodoptera exigua, maedtri known to influence induced plant defence responses. To determine the role of this herbivore cue in determining metabolic shifts, plants were subject to herbivory by caterpillars with intact or impaired LS secretions.
In both wild-type and quad- della plants, a jasmonate burst is an early response to caterpillar herbivory. Jasmonate-dependent marker genes are induced in response to herbivory independently of LS, with the exception of AtPDF1.
Early expression of the salicylic acid SA -marker gene, AtPR1, was not affected by herbivory which also reflected SA hormone levels; however, this gene showed LS-dependent expression in the quad- della mutant. DELLA proteins may positively regulate glucosinolate levels and suppress laccase-like multicopper oxidase activity in response to herbivory.
The present results show a link between DELLA proteins and early, induced plant defences in response to insect herbivory; in particular, these proteins are necessary for maesstri LS-associated attenuation of defence hormones.
della risonanza magnetica: Topics by
ricviardi Giovanni Pico della Mirandola, astrology and desire. Although in his later years Comunicasione Pico della Mirandola vehemently rejected astrology, he earlier used it in a variety of ways, but primarily to provide further evidence for positions to which he had arrived by other means. One such early use appears in his commentary on his friend Girolamo Benivieni’s love poetry, the Canzone d’amore, of In the passages discussed here, Pico presents an intensive Platonic natural philosophical analysis based on a deep astrologically informed understanding of human nature as he attempts to explain a perennial question, namely, why one person is attracted to a certain person or peopleand another to others.
I will place this discussion of the mysteries of attraction and desire in historical perspective by tracing Pico’s changing relationship to astrology during the course of his short but passionate life, and in historiographic perspective by revising Frances Yates’s still influential views concerning Pico’s contribution to Renaissance thought and his relationship with Marsilio Ficino.
Regulation of plant height, one maaestri the most important agronomic traits, is the focus of intensive research for improving crop performance. Stem elongation takes place as a result of repeated cell divisions and subsequent elongation of cells produced by apical and intercalary meristems.
The gibberellin GA phytohormones have long been known to control stem and internodal elongation by stimulating the degradation of nuclear growth-repressing DELLA proteins; however, the mechanism allowing GA-responsive growth is only slowly emerging. Consistent with this model, the quadruple mutant tcp8 tcp14 tcp15 tcp22 exhibits severe dwarfism and reduced responsiveness to GA action. There are two stages in photomorphogenesis. First, seedlings detect light and open their cotyledons.
Second, seedlings optimize their light environment by controlled elongation of the seedling comuhicazione or hypocotyl. In this comuincazione, we used time-lapse imaging to investigate the relationship between the brassinosteroid BR and gibberellin GA hormones across both stages of photomorphogenesis.
During the transition paradifmi one stage and marstri other, growth promotion by BRs and GAs switched from an additive to a synergistic relationship. Molecular genetic analysis revealed unexpected roles for known participants in the GA pathway mmaestri this period.
These results point to a multi-level, dynamic relationship between the BR and GA pathways. The majority of the vascular flowering plants form symbiotic associations with fungi from the phylum Glomeromycota through which both partners gain access to nutrients, either mineral nutrients in the case of the plant, or carbon, in the case of the fungus.
Previously, we showed that DELLA proteins, which are well known as repressors of gibberellic acid signaling, also regulate development of AM symbiosis and are necessary to enable arbuscule development. ABSTRACT The majority of comunicazionee vascular flowering plants form symbiotic associations with fungi from the phylum Glomeromycota through which both partners gain access to nutrients, either mineral nutrients in the case of the plant, or carbon, in the case of the fungus.
DELLA proteins positively regulate nitrogen deficiency-induced anthocyanin accumulation through directly interaction with PAP1 to enhance its transcriptional activity on anthocyanin biosynthetic gene expressions. Plants can survive a limiting nitrogen supply by undergoing adaptive responses, including induction of anthocyanin production. However, the detailed mechanism is still unclear.
In this study, comunicazion found riccciardi this process was impaired and enhanced, respectively, by exogenous GA 3 an active form of GAs and paclobutrazol PAC, a specific GA biosynthesis inhibitor in Arabidopsis seedlings. Using yeast two-hybrid Y2H assay, pull-down assay, and luciferase riccoardi assay, it was found that RGA, a DELLA of Arabidopsis, could strongly interact with PAP1, a known paradiymi transcription factor positively involved in anthocyanin biosynthesis.
Taken together, this study suggests that DELLAs are necessary regulators for nitrogen deficiency-induced anthocyanin accumulation through interaction with PAP1 and enhancement of PAP1’s transcriptional activity on its target genes.
Fruit growth depends on pafadigmi coordinated hormonal activities. The phytohormone gibberellin GA promotes growth by triggering degradation of the growth-repressing DELLA proteins; however, the extent to which such ricciafdi contribute to GA-mediated fruit development remains to be clarified.
Analysis of expression profile during fruit development suggested that Psl DELLA are transcriptionally regulated during flower and fruit ontogeny with potential positive regulation by GA and ethylene, depending on organ and developmental stage. PslDELLA—overexpression in WT Arabidopsis caused dramatic disruption in overall growth including root length, stem elongation, plant architecture, flower structure, fertility, and considerable retardation in development due to dramatic distortion in GA-metabolic pathway.