Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2011-7-6
pubmed:abstractText
Salinity stress is an important environmental constraint limiting the productivity of many crops worldwide. In this report, experiments were conducted to investigate the effects of seed presoaking by bovine hemoglobin, an inducer of heme oxygenase-1 (HO-1), on salinity tolerance in rice (Oryza sativa) plants. The results showed that different concentrations of the hemoglobin (0.01, 0.05, 0.2, 1.0, and 5.0 g/L) differentially alleviated the inhibition of rice seed germination and thereafter seedling shoot growth caused by 100 mM NaCl stress, and the responses of 1.0 g/L hemoglobin was the most obvious. Further analyses showed that application of hemoglobin not only increased the HO-1 gene expression, but also differentially induced catalase (CAT), ascorbate peroxidase (APX), and superoxide dismutase (SOD) activities or transcripts, thus decreasing the lipid peroxidation in germinating rice seeds subjected to salt stress. Compared with non-hemoglobin treatment, hemoglobin presoaking also increased the potassium (K) to sodium (Na) ratio both in the root and shoot parts after salinity stress. The effect is specific for HO-1 since the potent HO-1 inhibitor zinc protoporphyrin IX (ZnPPIX) blocked the positive actions of hemoglobin on seed germination and seedling shoot growth. Overall, these results suggested that hemoglobin performs an advantageous role in enhancement of salinity tolerance during rice seed germination.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-11173290, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-11402195, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-11463713, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-11705693, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-11904069, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-12481078, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-16666236, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-17351048, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-18689445, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-18811735, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-20378668, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-20605252, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-20674075, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-20797999, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-20978927, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-4943714, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-8593832, http://linkedlifedata.com/resource/pubmed/commentcorrection/21731454-942051
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:issn
1422-0067
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2488-501
pubmed:dateRevised
2011-8-1
pubmed:year
2011
pubmed:articleTitle
Enhancement of Salinity Tolerance during Rice Seed Germination by Presoaking with Hemoglobin.
pubmed:affiliation
Laboratory Centre of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; E-Mails: 2008216034@njau.edu.cn (S.X.); njhubing@sina.com (B.H.); njheziyi@sina.com (Z.H.); 2010116135@njau.edu.cn (F.M.); 1328207@njau.edu.cn (J.F.).
pubmed:publicationType
Journal Article