التفاصيل البيبلوغرافية
| العنوان: |
The Role of CLE Peptides in the Suppression of Mycorrhizal Colonization of Tomato. |
| المؤلفون: |
Wulf, Kate, Sun, Jiacan, Wang, Chenglei, Ho-Plagaro, Tania, Kwon, Choon-Tak, Velandia, Karen, Correa-Lozano, Alejandro, Tamayo-Navarrete, María Isabel, Reid, James B, Garrido, Jose Manuel García, Foo, Eloise |
| المصدر: |
Plant & Cell Physiology; Jan2024, Vol. 65 Issue 1, p107-119, 13p |
| مصطلحات موضوعية: |
FUNGAL colonies, PEPTIDES, PLANT nutrients, TOMATOES, PLANT colonization, VESICULAR-arbuscular mycorrhizas |
| مستخلص: |
Symbioses with beneficial microbes are widespread in plants, but these relationships must balance the energy invested by the plants with the nutrients acquired. Symbiosis with arbuscular mycorrhizal (AM) fungi occurs throughout land plants, but our understanding of the genes and signals that regulate colonization levels is limited, especially in non-legumes. Here, we demonstrate that in tomato, two CLV3/EMBRYO-SURROUNDING REGION (CLE) peptides, Sl CLE10 and Sl CLE11, act to suppress AM colonization of roots. Mutant studies and overexpression via hairy transformation indicate that Sl CLE11 acts locally in the root to limit AM colonization. Indeed, SlCLE11 expression is strongly induced in AM-colonized roots, but Sl CLE11 is not required for phosphate suppression of AM colonization. Sl CLE11 requires the FIN gene that encodes an enzyme required for CLE peptide arabinosylation to suppress mycorrhizal colonization. However, Sl CLE11 suppression of AM does not require two CLE receptors with roles in regulating AM colonization, Sl FAB (CLAVATA1 ortholog) or Sl CLV2. Indeed, multiple parallel pathways appear to suppress mycorrhizal colonization in tomato, as double mutant studies indicate that SlCLV2 and FIN have an additive influence on mycorrhizal colonization. Sl CLE10 appears to play a more minor or redundant role, as cle10 mutants did not influence intraradical AM colonization. However, the fact that cle10 mutants had an elevated number of hyphopodia and that ectopic overexpression of SlCLE10 did suppress mycorrhizal colonization suggests that Sl CLE10 may also play a role in suppressing AM colonization. Our findings show that CLE peptides regulate AM colonization in tomato and at least Sl CLE11 likely requires arabinosylation for activity. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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