Narcissus tazetta L. var. chinensis Roem. seedlings were subjected to substrate salinity and salt spray during greenhouse cultivation. The results demonstrated that N. tazetta L. seedlings treated with substrate salinity and salt spray exhibited slower growth rates than the control group. The sedimentation of Na+ and Cl− was primarily observed in the leaf apex, which was consistent with the location of lesions induced by salt stress. Under the two methods of salt stress, the mass fraction of ash in the leaf was significantly higher than that in the control group (P < 0.05). The sedimentation of Na+ and Cl− was mostly distributed in young leaves in the salt spray treatment, whereas the sedimentation was mostly distributed in old leaves under substrate salinity. There was a significant positive correlation between contents of Na+ and Cl− under the two methods of salt stress (P < 0.01). Not only the mass concentrations of Ca2+, Mg2+, Na+, K+, and Cl− in the seedlings exhibited variation, but also the distribution of mineral elements in the seedlings changed after both salt stress treatments. Moreover, the ratio of K+/Na+ under salt spray was greater than that under substrate salinity at the 300 mm NaCl treatment level. These results show that ion toxicity in N. tazetta L. seedlings was more serious under substrate salinity than under salt spray.

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In this study, the complete chloroplast (cp) genome of Narcissus tazetta var. chinensis cv ‘Yulinglong’ was sequenced and assembled by next-generation sequencing. The complete cp genome is 159,376 in length and contained 137 genes, consisting of 91 protein-coding genes, eight ribosomal RNA genes, and 38 transfer RNA genes. Phylogenetic analyses based on chloroplast genomes highly supported that ‘Yulinglong’ was evolutionarily close to Narcissus tazetta subsp. chinensis , which may provide more desirable information for the phylogenetic relationship between Narcissus tazetta var. chinensis and its relative species.

The first complete chloroplast (cp) genome of Narcissus ‘Pink Charm’ was sequenced and characterized using Illumina paired-end data. The assembled cp genome was 159,988 in length with a GC content of 37.82%. A total of 137 genes were annotated, consisting of 91 protein-coding genes, eight ribosomal RNA genes, and 38 transfer RNA genes. The phylogenetic position based on the cp genome data revealed that Narcissus ‘Pink Charm’ is more closely related to Narcissus poeticus than other relative species.

In this study, the complete chloroplast (cp) genome of Ixora chinensis was sequenced by next-generation sequencing for the first time. The complete cp genome is 154,787 in length and contained 131 genes, consisting of 86 protein-coding genes, eight ribosomal RNA genes, and 37 transfer RNA genes. The phylogenetic position based on chloroplast genomes suggests that I. chinensis was closely related to I. chinensis (MN850660.1) within the Ixora clade, which may provide useful information for further understanding the evolution of I. chinensis.