Sucrose promotes stem branching through cytokinin

Bolaji Babajide Salam; Francois Barbier; Raz Danieli; Paula Teper-Bamnolker; Carmit Ziv; Lukáš Spíchal; Kalaivani Aruchamy; Yula Shnaider; Diana Leibman; Felix Shaya; Mira Carmeli-Weissberg; Amit Gal-On; Jiming Jiang; Naomi Ori; Christine Beveridge; Dani Eshel

doi:10.1093/plphys/kiab003

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Sucrose promotes stem branching through cytokinin

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Sucrose promotes stem branching through cytokinin

Bolaji Babajide Salam, Francois Barbier, Raz Danieli, Paula Teper-Bamnolker, Carmit Ziv, Lukáš Spíchal, Kalaivani Aruchamy, Yula Shnaider, Diana Leibman, Felix Shaya, …

Plant physiology (Bethesda), Vol.185(4), pp.1708-1721

23/04/2021

DOI: https://doi.org/10.1093/plphys/kiab003

PMID: 33793932

Résumé

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Shoot branching is an important aspect of plant architecture because it substantially affects plant biology and agricultural performance. Sugars play an important role in the induction of shoot branching in several species, including potato (Solanum tuberosum L.). However, the mechanism by which sugars affect shoot branching remains mostly unknown. In the present study, we addressed this question using sugar-mediated induction of bud outgrowth in potato stems under etiolated conditions. Our results indicate that sucrose feeding to detached stems promotes the accumulation of cytokinin (CK), as well as the expression of vacuolar invertase (VInv), an enzyme that contributes to sugar sink strength. These effects of sucrose were suppressed by CK synthesis and perception inhibitors, while CK supplied to detached stems induced bud outgrowth and VInv activity in the absence of sucrose. CK-induced bud outgrowth was suppressed in vinv mutants, which we generated by genome editing. Altogether, our results identify a branching-promoting module, and suggest that sugar-induced lateral bud outgrowth is in part promoted by the induction of CK-mediated VInv activity. Sugar-induced lateral bud outgrowth is promoted by the induction of cytokinin and vacuolar invertase activity.

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Titre: Sucrose promotes stem branching through cytokinin
Créateurs - sans rôle: Bolaji Babajide Salam - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Francois Barbier - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Raz Danieli - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Paula Teper-Bamnolker - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Carmit Ziv - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Lukáš Spíchal - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Kalaivani Aruchamy - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Yula Shnaider - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Diana Leibman - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Felix Shaya - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Mira Carmeli-Weissberg - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Amit Gal-On - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Jiming Jiang - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Naomi Ori - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Christine Beveridge - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Dani Eshel - , ARO, Rishon LeZion, , Robert H. Smith Faculty of Agriculture, Food and Environment, Rehovot, , St. Lucia, QLD 4072, , Czech Republic (L.S.) , Rishon LeZion, , Rishon LeZion, , MI 48824
Détails de publication: Plant physiology (Bethesda), Vol.185(4), pp.1708-1721
Éditeur: Oxford University Press
Nombre de pages: 14
Note de subvention: ; ; CZ.02.1.01/0.0/0.0/16_019/0000827 / ; ; IS-5038-17C / ; ;
Identifiants: 99141248309311
Unité académique: Institut des Sciences des Plantes de Montpellier - IPSiM
Langue: English
Type de ressource: Journal article