An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Steinmacher DA, Guerra MP, Saare-Surminski K, Lieberei R.Steinmacher DA, et al. Among authors: lieberei r.Ann Bot. 2011 Dec;108(8):1463-75. doi: 10.1093/aob/mcr033. Epub 2011 Feb 25.Ann Bot. 2011.PMID: 21355009Free PMC article.
Steinmacher DA, Saare-Surminski K, Lieberei R.Steinmacher DA, et al. Among authors: lieberei r.Physiol Plant. 2012 Nov;146(3):336-49. doi: 10.1111/j.1399-3054.2012.01642.x. Epub 2012 Jun 19.Physiol Plant. 2012.PMID: 22574975