Agronomic and ecophysiological evaluation of an early establishment of perennial wheat lines in Central Italy

Baronti, Silvia; Galassi, Elena; Ugolini, Francesca; Miglietta, F.; Genesio, Lorenzo; Vaccari, Francesco Primo; Cacciatori, P.; Gazza, Laura

doi:10.1007/s10722-021-01248-8

Cited by 3 publications

(5 citation statements)

References 42 publications

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“…Moreover, these modifications point to the existence of a less stressful environment which favor the plant-microbiome crosstalk, thus improving plant resilience to biotic and abiotic stresses. Despite the dominance of the perenniality effect, OK72 distinguished from the other lines not only for its better agronomic features and nutritional quality, as previously shown ( Gazza et al., 2016 ; Baronti et al., 2022 ) but also for the increase of potential beneficial microorganisms such as Pseudomonas spp., thus resulting a suitable candidate for the study and selection of new perennial wheat lines ( Figure 7 ).…”

Section: Discussionmentioning

confidence: 51%

“…Further, significant differences among plant genotypes (280B and 235A) at the first year of growth were detected for microbial biomass. Based on a previous study, these differences might be caused by a dissimilar development strategy of the roots’ apparatus of the lines which showed variability in agronomic and eco-physiological performance in two subsequent years of cultivation ( Baronti et al., 2022 ). However, the progressive reduction of differences in microbial biomass between genotypes after four years, might be the consequence of the vertical root development and the continuous deposition of aboveground plant litter on soil.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, this study aims to examine the evolution of rhizobiome composition and activity of four perennial wheat lines derived from the cross-breeding between common wheat cultivars and Thinopyrum spp. ( Gazza et al., 2016 ; Baronti et al., 2022 ). These four genotypes have been selected from a wider group of nine wheat x wheatgrass derivatives with a relatively high post-harvest regrowth capacity and for their higher nutritional and technological quality ( Gazza et al., 2016 ; Baronti et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

“…( Gazza et al., 2016 ; Baronti et al., 2022 ). These four genotypes have been selected from a wider group of nine wheat x wheatgrass derivatives with a relatively high post-harvest regrowth capacity and for their higher nutritional and technological quality ( Gazza et al., 2016 ; Baronti et al., 2022 ). Rhizosphere microbial communities were evaluated on the first and fourth year of growth of the perennial wheat lines and compared with the rhizosphere microbial communities of an annual durum wheat cultivar and the parental species Thinopyrum intermedium .…”

Section: Introductionmentioning

confidence: 99%

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Perenniality, more than genotypes, shapes biological and chemical rhizosphere composition of perennial wheat lines

et al. 2023

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Perennial grains provide various ecosystem services compared to the annual counterparts thanks to their extensive root system and permanent soil cover. However, little is known about the evolution and diversification of perennial grains rhizosphere and its ecological functions over time. In this study, a suite of -OMICSs - metagenomics, enzymomics, metabolomics and lipidomics - was used to compare the rhizosphere environment of four perennial wheat lines at the first and fourth year of growth in comparison with an annual durum wheat cultivar and the parental species Thinopyrum intermedium. We hypothesized that wheat perenniality has a greater role in shaping the rhizobiome composition, biomass, diversity, and activity than plant genotypes because perenniality affects the quality and quantity of C input – mainly root exudates – hence modulating the plant-microbes crosstalk. In support of this hypothesis, the continuous supply of sugars in the rhizosphere along the years created a favorable environment for microbial growth which is reflected in a higher microbial biomass and enzymatic activity. Moreover, modification in the rhizosphere metabolome and lipidome over the years led to changes in the microbial community composition favoring the coexistence of more diverse microbial taxa, increasing plant tolerance to biotic and abiotic stresses. Despite the dominance of the perenniality effect, our data underlined that the OK72 line rhizobiome distinguished from the others by the increase in abundance of Pseudomonas spp., most of which are known as potential beneficial microorganisms, identifying this line as a suitable candidate for the study and selection of new perennial wheat lines.

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Section: Discussionmentioning

confidence: 51%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Perenniality, more than genotypes, shapes biological and chemical rhizosphere composition of perennial wheat lines

et al. 2023

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“…ponticum) in comparison to common wheat cultivars. Results showed higher soil respiration [44] and higher content of carotenoids and 5-n-alkylresorcinols (AR) known to potentially mitigate cardiovascular diseases and cancer risks [45]. The same center hosts 117 differential wheat Near Isogenic Lines (NILs) carrying one or more resistance genes against major fungal diseases.…”

Section: Hexaploid Wheatmentioning

confidence: 99%

Plant Genetic Resources for Food and Agriculture: The Role and Contribution of CREA (Italy) within the National Program RGV-FAO

Vaccino,

Antonetti,

Balconi

et al. 2024

Agronomy

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Conservation, characterization and exploitation of agrobiodiversity are key factors to guarantee food security and face future challenges such as climate changes. These issues are the subject of a series of international agreements, such as the Convention of Biological Diversity, with its Nagoya Protocol, and the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA) adopted in 2001 and entered into force in 2004. Italy ratified the Treaty in 2004 and instituted a long-lasting program, RGV-FAO, to implement it. CREA is one of the three organizations involved in the RGV-FAO Program, together with the National Research Council (CNR) and Reti Semi Rurali. CREA maintains a total of 40,186 accessions including cereals, vegetables, fruits, forages, industrial crops, forest and woody crops, medicinal and aromatic plants, and their wild relatives. Accessions are conserved using different ex situ conservation systems (seeds, in vivo plants, vegetative organs and in vitro plantlets), and characterized using genetic, morpho-phenological and/or biochemical methods. Herein, we will present the CREA long-lasting program RGV-FAO with some examples of the use of plant genetic resources in breeding programs, including molecular approaches. Some critical issues related to access and benefit sharing in PGRFA, such as the Nagoya Protocol and the Digital Sequence Information, will be discussed, highlighting their potential impact on food security and on the advancement of knowledge.

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Perennial intermediate wheatgrass accumulates more soil organic carbon than annual winter wheat – a model assessment

Tang,

Crews,

Brunsell

et al. 2023

Plant Soil

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Purpose Perennial crops have been suggested as a more sustainable alternative to the currently most common cropping systems. Compared with annual plants, perennial plants produce more biomass and have deeper roots, and are expected to lead to higher soil organic carbon (SOC). This hypothesis, however, has not been well tested for grain crops. Methods Using perennial intermediate wheatgrass (IWG, Thinopyrum intermedium) and annual winter wheat (Triticum aestivum) as focal species, and native grassland as reference, we quantified the SOC accumulation via a process-based model, describing water and heat exchanges and carbon-nitrogen cycling in the canopy and soil to a depth of 2 m. The model includes C fixation via photosynthesis, plant biomass growth and litter production, physical protection of SOC, depolymerisation, C mineralisation, nitrification, denitrification, microbial growth, and necromass turnover in the soil. While of general applicability, we considered a sandy loam under warm-summer humid continental climate. Results Following a conversion from native grassland, IWG reduced SOC losses by at least 38%, especially in the particulate organic carbon (POC) pool, within the top 2 m of soil, compared with annual wheat. Soil microbial biomass and soil respiration were higher in IWG than annual wheat. Shifting from annual wheat to high photosynthetic capacity IWG increased SOC by about 33 g C m−2 y−1 (averaged over a 4-year continuous IWG cropping), with a large fraction of SOC gain stemming from restoring POC. Conclusion Compared with annual grains, perennial grains can increase soil carbon sequestration and maintain SOC at levels nearer to that of native grasslands.

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Agronomic and ecophysiological evaluation of an early establishment of perennial wheat lines in Central Italy

Cited by 3 publications

References 42 publications

Perenniality, more than genotypes, shapes biological and chemical rhizosphere composition of perennial wheat lines

Perenniality, more than genotypes, shapes biological and chemical rhizosphere composition of perennial wheat lines

Plant Genetic Resources for Food and Agriculture: The Role and Contribution of CREA (Italy) within the National Program RGV-FAO

Perennial intermediate wheatgrass accumulates more soil organic carbon than annual winter wheat – a model assessment

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