biostudies-literatureFang ZTechnological Innovation Special project of Hainan Science Research InstituteNational Science Foundation of ChinaZhanjiang Science and Technology Bureau project273https://www.ebi.ac.uk/biostudies/studies/S-EPMC11871817biostudies-literatureUnknown25(1)<h4>Background</h4>Hernandia nymphaeifolia is a typical mangrove associate with high ecological, ornamental, and medicinal values, but in China, it has become endangered in recent years, and an urgent protection is needed. Salinity is a key factor for growth and survival of mangrove seedlings, and thus a comprehensive understanding of salt tolerance in mangroves is important for their conservation and afforestation. However, little is known regarding salt-responsive mechanisms in H. nymphaeifolia.<h4>Results</h4>In this study, we posed gradient salt treatments on H. nymphaeifolia seedlings and investigated their physiological and transcriptional reprogramming in response to salinity stress. The results revealed that hyper-salinity stress adversely impacted on leaf growth, cell integrity anBMC plant biologyPhysiological and transcriptional reprogramming for salinity tolerance of endangered mangrove associate Hernandia nymphaeifolia.PMC11871817KYYSLK-2023-0032023A0101832201420Xia XLiu YFang ZYang YZhao CHao JZhong CShi STracy MEZhang YfalsePhysiological and transcriptional reprogramming for salinity tolerance of endangered mangrove associate Hernandia nymphaeifolia.<h4>Background</h4>Hernandia nymphaeifolia is a typical mangrove associate with high ecological, ornamental, and medicinal values, but in China, it has become endangered in recent years, and an urgent protection is needed. Salinity is a key factor for growth and survival of mangrove seedlings, and thus a comprehensive understanding of salt tolerance in mangroves is important for their conservation and afforestation. However, little is known regarding salt-responsive mechanisms in H. nymphaeifolia.<h4>Results</h4>In this study, we posed gradient salt treatments on H. nymphaeifolia seedlings and investigated their physiological and transcriptional reprogramming in response to salinity stress. The results revealed that hyper-salinity stress adversely impacted on leaf growth, cell integrity an2025-01-01T00:00:00Z2025 Mar2025-04-22T20:09:21.59Z2025-04-06T03:03:04.44ZS-EPMC118718174002202310.1186/s12870-025-06291-6