دورية أكاديمية

Physiological impact of flavonoids on nodulation and ureide metabolism in legume plants.

التفاصيل البيبلوغرافية
العنوان: Physiological impact of flavonoids on nodulation and ureide metabolism in legume plants.
المؤلفون: Bosse, Marco Antônio1 (AUTHOR), Silva, Mariana Bocchi da2 (AUTHOR), Oliveira, Natália Gabriela Rós Marques de2 (AUTHOR), Araujo, Maycon Anderson de2 (AUTHOR), Rodrigues, Cleverson2 (AUTHOR), Azevedo, Jaquelyne Poliszuk de2 (AUTHOR), Reis, André Rodrigues dos1,3 (AUTHOR) andre.reis@unesp.br
المصدر: Plant Physiology & Biochemistry. Sep2021, Vol. 166, p512-521. 10p.
مصطلحات موضوعية: *ORGANIC acids, *LEGUMES, *PLANT metabolism, *NITROGEN fixation, *ROOT-tubercles, *FLAVONOIDS, *ATP-binding cassette transporters
مستخلص: Legume plants from Fabaceae family (phylogenetic group composed by three subfamilies: Caesalpinioideae, Mimosoideae, and Papilionoideae) can fix atmospheric nitrogen (N 2) into ammonia (NH 3) by the symbiotic relationship with rhizobia bacteria. These bacteria respond chemotactically to certain compounds released by plants such as sugars, amino acids and organic acids. Root secretion of isoflavonoids acts as inducers for nod genes in rhizobia and ABC transporters and ICHG (isoflavone conjugates hydrolyzing beta-glucosidase) at apoplast are related to the exudation of genistein and daidzein in soybean roots. Biological nitrogen fixation (BNF) occurs inside the nodule by the action of nitrogenase enzyme, which fixes N 2 into NH 3 , which is converted into ureides (allantoin and allantoic acid). In this review, we bring together the latest findings on flavonoids biosynthesis and ureide metabolism in several legume plant species. We emphasize how flavonoids induce nod genes in rhizobia, affecting chemotaxis, nodulation, ureide production, growth and yield of legume plants. Mainly, isoflavonoids daidzein and genistein are responsible for nod genes activation in the rhizobia bacteria. Flavonoids also play an important role during nodule organogenesis by acting as auxin transporter inhibitors in root cells, especially in indeterminate nodules. The ureides are the main N transport form in tropical legumes and they are catabolized in leaves and other sink tissues to produce amino acids and proteins needed for plant growth and yield. • Profile of flavonoids and ureides concentration differ among legume species. • ABC transporters and ICHG at apoplast are related to the exudation of daidzein in soybean roots. • Daidzein and genistein are responsible for nod genes activation in the rhizobia bacteria. • Flavonoids also play an important role during nodule organogenesis especially in indeterminate nodules. [ABSTRACT FROM AUTHOR]
قاعدة البيانات: Academic Search Index
الوصف
تدمد:09819428
DOI:10.1016/j.plaphy.2021.06.007