In order to screen suitable Bougainvillea varieties for coastal urban landscaping, salt spray resistant of five varieties commonly used in Xiamen were comprehensively evaluated. The seedlings of five Bougainvillea varieties, namely, B. glabra 'Mrs. Eva Mauve Variegata', B. buttiana 'Miss Manila', B. glabra 'Elizabeth Angus', B. glabra 'Magnifica' and B. glabra 'Alba' were used as experimental materials. The NaCl solution was sprayed with an ultrasonic humidification sprayer to simulate salt spray stress. The morphological changes of the plants were observed regularly, and the relative chlorophyll content, relative water content, superoxide dismutase activity (SOD), malondialdehyde (MDA), and proline content of the leaves were measured. The results showed that salt spray stress caused yellowing, scorching, and shedding of Bougainvillea leaves, and the severity increased with the increase of treatment time. 'Elizabeth Angus' and 'Magnifica' were the most affected, and the appearance of 'Mrs. Eva Mauve Variegata' was less affected. Compared with the control, the relative chlorophyll contents and relative water contents of each variety decreased significantly, with different degrees of decline. Under salt spray treatment, the MDA content of 'Mrs. Eva Mauve Variegata' and 'Elizabeth Angus' did not change significantly with the increase of time; compared with the control, the MDA content of 'Alba' showed a gradual downward trend, 'Elizabeth Angus' and 'Magnifica' gradually increased, while ‘Miss Manila’ first decreased and then increased, and 'Mrs. Eva Mauve Variegata' first increased and then decreased. Compared with the control, except for 'Elizabeth Angus' and 'Magnifica', the SOD activity of the other varieties increased to a certain extent; with the increase of time, the SOD activity of most varieties showed a trend of first increasing and then decreasing. The changing trend of proline content in each variety first increased and then decreased with the passage of time, and the increase in 'Alba' was the largest. The fuzzy mathematical membership function analysis showed that the salt spray resistance of the five varieties was ranked as follows: 'Alba'＞'Mrs. Eva Mauve Variegata'＞ ‘Miss Manila’＞ 'Elizabeth Angus'＞'Magnifica'.
[1] 王述礼, 孔繁智, 关德新, 诸德新, 孙美清, 王华胜. 沿海防护林防海煞危害初探[J]. 应用生态学报, 1995(3): 251–254.
[2] Du J, Hesp P A. Salt spray distribution and its impact on vegetation zonation on coastal dunes [J]. Estuaries and Coasts, 2020, 43(8): 1885–1907.
[3] Kouali A, Mouradi M, Latrach L, Khadraji A, Elasri O, Baicha Z, Berrichi A, Kouddane N, Boukroute A. Study of effects of seawater salt spray on growth, chlorophyll fluorescence and chlorophyll content in three coastal species of Morocco [J]. Journal of Materials and Environmental Sciences, 2017, 8(12): 4385–4390.
[4] 梁育勤, 卞阿娜, 陈伯毅, 黄小萍, 吴毓娟, 张毅. 盐雾胁迫对肯氏南洋杉幼苗生长及离子分布的影响[J]. 植物生理学报, 2023, 59(9): 1803–1810.
[5] 陈国军, 刘维刚, 徐迎春, 廖启炓. 9种滨海植物盐雾的耐性评价[J]. 森林与环境学报, 2018, 38(3): 341–347.
[6] 徐千瑞, 顾嘉诚, 李贺鹏, 王珺, 房瑶瑶, 朱弘, 岳春雷. 盐雾胁迫对极小种群植物日本荚蒾光合生理的影响[J]. 热带亚热带植物学报, 2023, 31(2): 241–248.
[7] 侯梦莹, 李芊芊, 袁甜甜, 王文卿, 范志阳, 洪赐在. 南方滨海地区盐雾沉降的时空分布——以福建古雷半岛为例[J]. 生态学杂志, 2019, 38(8): 2524–2530.
[8] 曹舰艇, 范志阳, 黄建明, 陈洋芳, 陈自亮, 王文卿. 盐雾危害是南方滨海地区园林绿化的主要困难[J]. 应用生态学报, 2021, 32(8): 2923–2930.
[9] 徐夙侠, 王亮生, 舒庆艳, 苏明华, 黄青云, 张文惠, 刘公社. 三角梅属植物的生物学研究进展[J]. 植物学通报, 2008, 25(4): 483–490.
[10] 施建羽. 厦门地区三角梅属植物资源及其园林应用[J]. 福建热作科技, 2011, 36(4): 57–60.
[11] 王振, 丁印龙, 董怡然, 杨盛昌. 三角梅对盐胁迫的响应研究[J]. 亚热带植物科学, 2015, 44(2): 91–95.
[12] Cartica R J, Quinn J A. Responses of populations of Solidago sempervirens (Compositae) to salt spray across a barrier beach [J]. American Journal of Botany, 1980, 67(8): 1236–1242.
[13] Toscana S, La Fornara G, Romana D. Salt spray and surfactants induced morphological, physiological, and biochemical responses in Callistemon citrinus (Curtis) plants [J]. Horticulturae, 2022, 8(3): 261.
[14] 姜瑛, 周萌, 吴越, 苗玉红, 汪强, 韩燕来. 不同燕麦品种耐盐性差异及其生理机制[J]. 草业科学, 2018, 35(12): 2903–2914.
[15] 张琼, 刘景春, 卢豪良, 段罕慧, 严重玲. 硅对镉胁迫下红树白骨壤酚类代谢的影响[J]. 生态学杂志, 2015, 34(7): 1892–1897.
[16] 徐国葆. 我国沿海大气中盐雾含量与分布[J]. 环境技术, 1994(3): 1–7.
[17] Toscano S, Branca F, Romana D, Ferrante A. An evaluation of different parameters to screen ornamental shrubs for salt spray tolerance [J]. Biology, 2020, 9(9): 250.
[18] 王文卿, 陈琼. 南方滨海耐盐植物资源(一) [M]. 厦门: 厦门大学出版社, 2013.
[19] 卞阿娜, 林鸣, 王文卿. 盐雾胁迫对榄仁幼苗生长及体内矿质元素分布的影响[J]. 生态环境学报, 2014, 23(11): 1752–1758.
[20] Itoh M. Phenotypic variation and adaptation in morphology and salt spray tolerance in coastal and inland populations of Setaria viridis in central Japan [J]. Weed Research, 2021, 61(3): 199–209.
[21] 陈威, 童宇艳, 冯瑜, 郝露露, 张慧玉, 岳丹斐, 张颖, 郑春芳. 盐胁迫对红树植物红榄李幼苗超微结构及光合荧光特性的影响[J]. 生态学杂志, 2024, 43(3): 716–723.
[22] 卞阿娜, 陆銮眉. 玉蕊响应土壤盐胁迫与盐雾胁迫的生理差异机制[J]. 植物生理学报, 2022, 58(2): 415–424.
[23] 周晓瑾, 黄海霞, 张婷, 齐建伟, 罗永忠. 盐胁迫对裸果木幼苗生长和叶片抗逆生理指标的影响[J]. 西北植物学报, 2023, 43(9): 1509–1517.
[24] 王婧泽, 高树仁, 孙丽芳, 王霞, 王晶, 胡凯凤, 邓杰. 3个玉米自交系对盐胁迫的生理响应及耐盐性评价[J]. 干旱地区农业研究, 2017, 35(2): 1000–7601.
[25] 刘俊宇, 张春宵, 孙博, 董菁，金峰学，刘学岩，刘文平，石创业，吴委林，李晓辉. 基于脯氨酸相关指标动态监测玉米苗期盐碱胁迫伤害[J]. 玉米科学, 2024, 32(7): 55–64.
[26] 杨静慧, 孟娜, 左凤月, 刘艳军，李建科. 野生白刺和碱蓬的叶水势、表皮解剖结构与耐盐性[J]. 天津农学院学报, 2013, 20(3): 5–8.
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