|Table of Contents|

Effects of Hydrogen Sulfide on Seed Germination and Seedling Growth of Spinach Under Cadmium Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年16
Page:
16-21
Research Field:
Publishing date:

Info

Title:
Effects of Hydrogen Sulfide on Seed Germination and Seedling Growth of Spinach Under Cadmium Stress
Author(s):
LI Xiaoke1; WU Yuzhen1; ZHANG Jinhua1; ZHANG Yixian2
(1.School of Biology Science and Technology，Jinzhong College，Jinzhong，Shanxi 030619；2.School of Life Science，Shanxi University，Taiyuan，Shanxi 030006)
Keywords:
cadmium stress; H2S; spinach; seed germination; seedling growth
PACS:
-
DOI:
10.11937/bfyy.20194934
Abstract:
In order to ascertain the exogenous H2S adaptive response characteristics of spinach under Cd stress,the effects of exogenous NaHS (H2S donor) on seed germination index and seedling growth response of spinach under Cd stress were studied by using spinach as experimental material and adopting indoor culture method,so as to provide experimental theoretical basis for planting and management of spinach in the Cd polluted areas.The results showed that in the treatment of heavy metal Cd (0.36 mmol?L-1),NaHS solution (40 μmol?L-1) and H2S generation inhibitor HA solution (0.8 mmol?L-1),compared with the control,spinach seed germination indexes (germination rate,germination potential,germination index,vigor index,unusual germination rate),seedling growth indexes (root length,plant height,biomass,root system tolerance index) and respiratory rate were reduced significantly under the treatment of Cd and HA alone.With the addition of H2S,it had a promoting effect on the above indexes,especially the compound treatment group (NaHS+Cd) showed the mitigating effect of H2S on Cd damage.The content of malondialdehyde (MDA),a physiological index of germination,was significantly increased under the treatment of Cd and HA alone,while the addition of H2S reduced MDA content and alleviated the damage of ROS to spinach seeds.

References:

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Last Update: 2020-11-23