Gene Details:

• Gene ID: Zm00001eb399590
• Gene Symbol: ZmPgb1.1 hb1 phytoglobin1.1 PZA01369
• Gene Name: hemoglobin1
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• The inhibition of maize (Zea mays L.) root stem cell regeneration by low oxygen is attenuated by Phytoglobin 1 (Pgb1) through changes in auxin and jasmonic acid.
• Over-expression of the Phytoglobin1 ZmPgb1.1 alleviates these effects through the retention of the auxin flow along the root profile required for the specification of the QC stem cells.
• A model is proposed whereby the ZmPgb1.1 maintenance of auxin synthesis in hypoxic QCs is determinant for the retention of their functionality, with JA supporting the regeneration of roots from the QCs.
• Suppression of the maize phytoglobin ZmPgb1.1 promotes plant tolerance against Clavibacter nebraskensis.
• Collectively, our results illustrated that suppression of ZmPgb1.1 evokes tolerance against C. nebraskensis culminating in the execution of PCD, a key step of the hypersensitive response.

Function-related keywords:

• stem ,  root ,  auxin ,  ja ,  jasmonic ,  jasmonic-acid

Literature:

• The inhibition of maize (Zea mays L.) root stem cell regeneration by low oxygen is attenuated by Phytoglobin 1 (Pgb1) through changes in auxin and jasmonic acid.   DOI:  10.1007/s00425-023-04144-w ;  PMID:  37178357
• Suppression of the maize phytoglobin ZmPgb1.1 promotes plant tolerance against Clavibacter nebraskensis.   DOI:  10.1007/s00425-019-03263-7 ;  PMID:  31456046

Related News:

Gene Resources:

• NCBI ID: LOC541815
• UniProt accessions: Q9FY42 ,  Q9M593

Sequences:

Source: Genetic information comes from the article