Environmental impact assessment of alfalfa (Medicago sativa L.) hay production

Bacenetti, Jacopo; Lovarelli, Daniela; Tedesco, D.; Pretolani, Roberto; Ferrante, V.

doi:10.1016/j.scitotenv.2018.04.161

Cited by 25 publications

(6 citation statements)

References 30 publications

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“…The first aspect is mainly related to animal welfare, health and production, whereas the second focuses on agricultural aspects for field crops cultivation. The LCA approach has been globally adopted for analysing the production sides related to agro-food products, both focusing on the field cultivation phases (e.g., crops production) (Bacenetti et al, 2018;Guarino et al, 2019;Lovarelli et al, 2020;Nabavi-Pelesaraei et al, 2018), on animals products (e.g., milk and meat) (de Vries and de Boer, 2010; Lovarelli et al, 2019) and on the bioenergy production from agricultural biomass (e.g., anaerobic digestion) (Bacenetti et al, 2016b;Kaab et al, 2019a;Kaab et al, 2019b;Provolo et al, 2018;). However, the effect of adopting PLF has not yet been analysed in this perspective.…”

Section: Methodsmentioning

confidence: 99%

A review on dairy cattle farming: Is precision livestock farming the compromise for an environmental, economic and social sustainable production?

Lovarelli

Bacenetti

Guarino

2020

Journal of Cleaner Production

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150

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Section: Methodsmentioning

confidence: 99%

A review on dairy cattle farming: Is precision livestock farming the compromise for an environmental, economic and social sustainable production?

Lovarelli

Bacenetti

Guarino

2020

Journal of Cleaner Production

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150

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“…Reduction of lignin content was achieved by down-regulating lignin synthesis genes such as, hydroxycinnamoyl -CoA:shikimate hydroxycinnamoyl transferase (HCT), coumarate 3-hydroxylase (C3H), cinnamyl alcohol dehydrogenase (CAD), caffeic acid 3-O-methyltransferase (COMT), and caffeoyl CoA 3-Omethyltransferase (CCoAOMT) (Baucher et al, 1999;Marita et al, 2003;Nakashima et al, 2008;Tong et al, 2015;Gallego-Giraldo et al, 2016). In addition, suitable field management of seasonal fertilization and irrigation, is beneficial for alfalfa growth and enables a better balance of protein and fiber content (Bacenetti et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Identification of Genetic Loci Associated With Crude Protein Content and Fiber Composition in Alfalfa (Medicago sativa L.) Using QTL Mapping

et al. 2021

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Forage quality determined mainly by protein content and fiber composition has a crucial influence on digestibility and nutrition intake for animal feeding. To explore the genetic basis of quality traits, we conducted QTL mapping based on the phenotypic data of crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), and lignin of an F1 alfalfa population generated by crossing of two alfalfa parents with significant difference in quality. In total, 83 QTLs were identified with contribution to the phenotypic variation (PVE) ranging from 1.45 to 14.35%. Among them, 47 QTLs interacted significantly with environment and 12 QTLs were associated with more than one trait. Epistatic effect was also detected for 73 pairs of QTLs with PVE of 1.08–14.06%. The results suggested that the inheritance of quality-related traits was jointly affected by additive, epistasis and environment. In addition, 83.33% of the co-localized QTLs were shared by ADF and NDF with the same genetic direction, while the additive effect of crude protein-associated QTLs was opposite to that fiber composition on the same locus, suggesting that the loci may antagonistically contribute to protein content and fiber composition. Further analysis of a QTL related to all the three traits of fiber composition (qNDF1C, qADF1C-2, and qlignin1C-2) showed that five candidate genes were homologs of cellulose synthase-like protein A1 in Medicago truncatula, indicating the potential role in fiber synthesis. For the protein-associated loci we identified, qCP4C-1 was located in the shortest region (chr 4.3 39.3–39.4 Mb), and two of the seven corresponding genes in this region were predicted to be E3 ubiquitin-protein ligase in protein metabolism. Therefore, our results provide some reliable regions significantly associated with alfalfa quality, and identification of the key genes would facilitate marker-assisted selection for favorable alleles in breeding program of alfalfa quality improvement.

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“…Although alfalfa can tolerate moderate soil salinity, it is highly sensitive to high salt concentrations. In severe cases, salt stress can cause a decline in the growth of alfalfa roots, stems, leaves, and nutritional value, possibly resulting in plant death [8,9]. Exposure to 200 mM NaCl stress, in particular, causes significant growth damage in alfalfa [9,10].…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Analysis of Melatonin-Mediated Salt Stress Response in Germinating Alfalfa

Liu,

Ren,

Zhu

et al. 2024

Agriculture

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Salt stress poses a significant threat to crop yields worldwide. Melatonin (MT), an endogenous hormone synthesized in plants, has emerged as a crucial player in plant responses to various abiotic stresses, including drought, salinity, heat, and cold. However, the precise molecular mechanisms underlying MT-mediated abiotic stress responses remain incompletely understood. To elucidate the key genes and pathways involved in MT-mediated alleviation of salt stress, we conducted physiological, biochemical, and transcriptomic analyses on alfalfa seedlings. Our results demonstrated that alfalfa seedlings treated with melatonin exhibited higher germination rates, longer bud lengths, and greater fresh weights compared to those subjected to salt stress alone. Furthermore, the levels of malondialdehyde (MDA) and superoxide anion (O2−) were reduced, while the activities and contents of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), and glutathione (GSH) increased in response to melatonin treatment. Transcriptome analysis revealed 2181 differentially expressed genes (DEGs) in the salt-treated group, with 780 upregulated and 1401 downregulated genes. In contrast, the MT-treated group exhibited 4422 DEGs, including 1438 upregulated and 2984 downregulated genes. Functional annotation and pathway enrichment analysis indicated that DEGs were primarily involved in the biosynthesis of flavonoids, isoflavones, plant hormones, glutathione (GSH), soluble sugars, and other substances, as well as in ABC transporter and MAPK signaling pathways. Notably, the MT-treated group showed greater enrichment of DEGs in these pathways, suggesting that MT mitigates salt stress by modulating the expression of genes related to phytohormones and antioxidant capacity. Overall, our findings provide valuable insights into the molecular mechanisms underlying MT-mediated salt tolerance in alfalfa, with important implications for breeding salt-tolerant alfalfa and other crops.

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Environmental impact assessment of alfalfa (Medicago sativa L.) hay production

Cited by 25 publications

References 30 publications

A review on dairy cattle farming: Is precision livestock farming the compromise for an environmental, economic and social sustainable production?

A review on dairy cattle farming: Is precision livestock farming the compromise for an environmental, economic and social sustainable production?

Identification of Genetic Loci Associated With Crude Protein Content and Fiber Composition in Alfalfa (Medicago sativa L.) Using QTL Mapping

Transcriptomic Analysis of Melatonin-Mediated Salt Stress Response in Germinating Alfalfa

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