Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g18670	Inactive beta-amylase 9.	No verified direct reference in this release
Arabidopsis	At4g17090	Beta-amylase activity.	RNA interference of Arabidopsis beta-amylase8 prevents maltose accumulation upon cold shock and increases sensitivity of PSII photochemical efficiency to freezing stress.; 2005; DOI: 10.1111/j.1365-313x.2005.02565.x; PMID: 16297066; https://pubmed.ncbi.nlm.nih.gov/16297066/ | Glucan, water dikinase activity stimulates breakdown of starch granules by plastidial beta-amylases.; 2007; DOI: 10.1104/pp.107.104224; PMID: 17631522; https://pubmed.ncbi.nlm.nih.gov/17631522/
Arabidopsis	At3g23920	Beta-amylase activity.	Glucan, water dikinase activity stimulates breakdown of starch granules by plastidial beta-amylases.; 2007; DOI: 10.1104/pp.107.104224; PMID: 17631522; https://pubmed.ncbi.nlm.nih.gov/17631522/
Arabidopsis	At5g55700	No alpha-1,4-glucan hydrolase activity, including beta-amylase, alpha-amylase, a-glucosidase or alpha-amyloglucosidase.	Beta-AMYLASE4, a noncatalytic protein required for starch breakdown, acts upstream of three active beta-amylases in Arabidopsis chloroplasts.; 2008; DOI: 10.1105/tpc.107.056507; PMID: 18390594; https://pubmed.ncbi.nlm.nih.gov/18390594/ | Catalytically-inactive beta-amylase BAM4 required for starch breakdown in Arabidopsis leaves is a starch-binding-protein.; 2009; DOI: 10.1016/j.abb.2009.07.024; PMID: 19664588; https://pubmed.ncbi.nlm.nih.gov/19664588/
Rice	Os03g0141200	Possesses beta-amylase activity in vitro.	No verified direct reference in this release