Study on the response of three wetland plants to salt stress

doi:10.14088/j.cnki.issn0439-8114.2022.06.016

Abstract

Abstract: To ascertain the physiological and ecological response of salt stress to plants in coastal wetlands, three typical wetland plants, Iris pseudacorus L., Canna indica, and Pontederia cordata L.were used as experimental materials to study the tolerance of these three plants under different salinities （0.5‰、1.0‰、1.5‰、3.0‰） through hydroponic experiments. During the hydroponic treatment, the growth and physiological indexes of the plants were measured every 7 days. The results showed that,under salt stress, the growth of root system, leaf width and plant growth of Iris pseudacorus L., Canna indica, and Pontederia cordata L. showed an overall upward trend. When the salt stress concentration and stress time increase, the growth of the three plants will be inhibited in different ways; The change of MDA content except for Pontederia cordata L. and Iris pseudacorus L. cultivated under the stress of 1‰ NaCl, showed a trend from decline to rise. Canna indica and other treatments of Iris pseudacorus L. showed a trend of first increase and then decrease. The CAT of Iris pseudacorus L., Canna indica, and Pontederia cordata L. all showed a trend of first increase and then decrease. The results of this study showed that the salt tolerance of the three wetland plants was Canna indica>Iris pseudacorus L.>Pontederia cordata L..

Key words: salt stress, wetland plants, growth condition, vegetation restoration

CLC Number:

Q948.12

XU Yang-fan, FENG Li-hui, CHEN Wen-feng, LIU Jian-tong, WU Chen-xi, HU Hong-juan. Study on the response of three wetland plants to salt stress[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(6): 83-87.

References

[1] 陈慧英,汤坤贤,宋晖,等. 3种海岛植被修复典型植物耐盐能力研究[J]. 应用海洋学学报,2017, 36(3): 380-384.
[2] 陈永快,王涛,廖水兰,等. 逆境及生长调节剂对作物抗逆性的影响综述[J]. 江苏农业科学,2019, 47(23): 68-72.
[3] 赵斌,徐张俊,吴向崇,等. 3种热带植物幼苗的耐盐性[J]. 森林与环境学报,2020, 40(5): 519-525.
[4] 王东明,贾媛,崔继哲.盐胁迫对植物的影响及植物盐适应性研究进展[J]. 中国农学通报,2009, 25(4): 124-128.
[5] 李峰,谢永宏,贾盈盈. 盐胁迫条件下湿地植物的适应策略[J].生态学杂志,2009, 28(2): 314-321.
[6] 王宝山,赵可夫,邹琦.作物耐盐机理研究进展及提高作物抗盐性的对策[J].植物学报,1997,14(增刊): 25-30.
[7] AVUOLU K, KL S, KABAR K.Effects of pretreatments of some growth regulators on the stomata movements of barley seedlings grown under saline (NaCl) conditions[J]. Plant, soil and environment, 2018, 53(12):524-528.
[8] 张建锋,李吉跃,宋玉民,等. 植物耐盐机理与耐盐植物选育研究进展[J]. 世界林业研究, 2003(2): 16-22.
[9] SOLIMAN W S, SUGIYAMA S I, ABBAS A M, et al.Contribution of avoidance and tolerance strategies towards salinity stress resistance in eight C₃ turfgrass species[J]. Horticulture environment and biotechnology, 2018, 59(1): 29-36.
[10] 王康君,樊继伟,陈凤,等. 植物对盐胁迫的响应及耐盐调控的研究进展[J].江西农业学报,2018, 30(12): 31-40.
[11] 李合生. 植物生理生化实验原理和技术[M]. 北京:高等教育出版社,2000.
[12] 范真,胡海波,连经纬,等. 几种湿地植物的耐盐性与净化水质效果研究[J]. 人民长江, 2019, 50(10):56-62.
[13] 张相锋,杨晓绒,焦子伟. 植物耐盐性评价研究进展及评价策略[J]. 生物学杂志, 2018, 35(6):91-94.
[14] 穆丹,梁英辉,姚丹丹,等. 龙凤湿地2种湿生花卉对盐胁迫的生理响应[J]. 西部林业科学, 2020,49(3):49-55.
[15] 陈少裕. 膜脂过氧化对植物细胞的伤害[J]. 植物生理学通讯, 1991, 27(2): 84-90.
[16] PARVAIZ A, ABEER H, FATHI A, et al.Role of Trichoderma harzianum in mitigating NaCl stress in Indian mustard (Brassica juncea L) through antioxidative defense system[J]. Frontiers in plant science, 2015, 6:868.
[17] GILL S S,TUTEJA N.Reactive oxygen species and antioxidant machinery in abiotic stress tolerance in crop plants[J]. Plant Physiol Biochem, 2010, 48(12):909-930.
[18] 沈金玲,钟镇芬,黄永健,等.盐胁迫对桉树(Eucalyptus)活性氧代谢和CAT基因表达的影响[J]. 分子植物育种,2020,18(5): 1661-1665.
[19] 沈徐悦,金荷仙,陈蓉蓉,等.NaCl胁迫对3种木兰科植物幼苗叶片部分生理指标的影响[J]. 植物资源与环境学报,2020, 29(4):75-77.
[20] 林雪锋,颉洪涛,虞木奎,等.盐胁迫下3种海滨植物形态和生理响应特征及耐盐性差异[J]. 林业科学研究,2018,31(3): 95-103.