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Here, we identified\n                    <jats:italic>H. brasiliensis<\/jats:italic>\n                    CATALASE2 (HbCAT2) as a factor associated with cold tolerance in this species, likely through reducing excess H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    . Cold stress significantly induced\n                    <jats:italic>HbCAT2<\/jats:italic>\n                    transcription and catalase activity in\n                    <jats:italic>H. brasiliensis<\/jats:italic>\n                    , and overexpression of\n                    <jats:italic>HbCAT2<\/jats:italic>\n                    in both\n                    <jats:italic>H. brasiliensis<\/jats:italic>\n                    and Arabidopsis enhanced cold tolerance and reduced H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    accumulation. Furthermore, we found that HbCBF1, a key transcription factor in plant cold signaling, could directly bind to and activate\n                    <jats:italic>HbCAT2<\/jats:italic>\n                    , and overexpression of\n                    <jats:italic>HbCAT2<\/jats:italic>\n                    was able to alleviate the cold hypersensitivity of the Arabidopsis\n                    <jats:italic>cbf123<\/jats:italic>\n                    triple mutant. Additionally, the protein kinase HbSnRK2.6A interacted with and phosphorylated HbCAT2 to stimulate its catalase activity. Genetic evidence showed that HbSnRK2.6A\u2010mediated cold tolerance is associated with CAT2 function. Together, our findings are consistent with a dual regulatory module in which HbCBF1\u2010mediated\n                    <jats:italic>HbCAT2<\/jats:italic>\n                    transcription and HbSnRK2.6A\u2010mediated phosphorylation of HbCAT2 may contribute to enhancing cold tolerance by preventing H\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>2<\/jats:sub>\n                    overaccumulation in\n                    <jats:italic>H. brasiliensis<\/jats:italic>\n                    .\n                  <\/jats:p>","DOI":"10.1111\/tpj.71097","type":"journal-article","created":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T07:26:54Z","timestamp":1787902014000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Transcription and phosphorylation of\n                    <scp>CATALASE2<\/scp>\n                    contribute to cold stress tolerance in\n                    <i>Hevea brasiliensis<\/i>"],"prefix":"10.1111","volume":"127","author":[{"given":"Ru\u2010Feng","family":"Song","sequence":"first","affiliation":[{"name":"National Key Laboratory of Tropical Crop Breeding Sanya Institute of Breeding and Multiplication, School of Tropical Agriculture and Forestry, Hainan University  Sanya 572025 China"},{"name":"State Key Laboratory of Crop Stress Adaptation and Improvement School of Life Sciences, Henan University  Kaifeng 475004 China"},{"name":"Sanya Institute, Henan University  Sanya 572025 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Wen","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Tropical Crop Breeding Sanya Institute of Breeding and Multiplication, School of Tropical Agriculture and Forestry, Hainan University  Sanya 572025 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lin","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Crop Stress Adaptation and Improvement School of Life Sciences, Henan University  Kaifeng 475004 China"},{"name":"Sanya Institute, Henan University  Sanya 572025 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huan","family":"Yang","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Tropical Crop Breeding Sanya Institute of Breeding and Multiplication, School of Tropical Agriculture and Forestry, Hainan University  Sanya 572025 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chaorong","family":"Tang","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Tropical Crop Breeding Sanya Institute of Breeding and Multiplication, School of Tropical Agriculture and Forestry, Hainan University  Sanya 572025 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