两种具有镍农用潜力的超积累植物种子萌发特性研究

IF 0.9 4区 生物学 Q4 PLANT SCIENCES
Dimitrios Kyrkas, Nikolaos Mantzos, George Patakioutas, Guillaume Echevarria, Evaggelos Filis, Panayiotis Dimitrakopoulos, Maria Konstantinou
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引用次数: 0

摘要

本研究旨在研究不同镍浓度、光照、储存条件和储存时间对蛇形植物特有镍超富集物种(Bornmuellera emarginata和B. tymphaea)种子萌发能力的影响。这两种植物的种子于7月初在希腊平都斯山脉的自然种群中采集,并在冰箱(4℃)和实验室(22℃)条件下保存。在两个光照环境(12 h光周期和连续黑暗)中,将种子暴露于典型的非超镁铁-超镁铁梯度镍浓度范围内。镍浓度只对褐藻有显著影响,随着镍浓度的增加,褐藻种子发芽率降低。贮藏温度对两种种子的发芽率均有显著影响,贮藏温度在4℃时最高。C和22?C相比。较高的发芽率(>(60%),但在种子成熟后7个月进行的田间试验中,两种种子的发芽率普遍较高。在12小时的光照条件下,发芽率高于连续黑暗条件下的发芽率。本研究提供了两种专性镍超蓄积体萌发能力的指导方针,具有在农业采矿系统中使用的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The seed germination properties of two hyperaccumulator plant species with the potential for Ni agromining
The aim of this study is to investigate the effect of different nickel concentrations and light in combination with storage conditions and storage time on the seed germination ability of two serpentine-endemic nickel hyperaccumulating species (Bornmuellera emarginata and B. tymphaea). The seeds of both species were collected from natural populations in the Pindus Mountain range, Greece in early July and stored in a refrigerator (4?C) and in laboratory conditions (22?C). The seeds were exposed to a range of nickel concentrations typical of non-ultramafic-ultramafic gradient in two light environments (12 h photoperiod and continuous darkness). The nickel concentration only had a significant effect on B. emarginata, decreasing its seed germination rate with increasing Ni concentrations. The storage temperature significantly affected the germination percentage of both species and it was higher at 4?C compared to 22?C. A higher germination rate (> 60%) was observed for 5-8-month-old seeds, but both species generally showed significantly higher germination rates in the tests conducted seven months after seed ripening in the field. A higher germination rate was observed in a 12-hour photoperiod than in continuous darkness only for B. tymphaea. This study provides guidelines on the germination capacity of two obligate nickel hyperaccumulators with a potential for use in agromining systems.
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来源期刊
Botanica Serbica
Botanica Serbica Agricultural and Biological Sciences-Plant Science
CiteScore
1.40
自引率
12.50%
发文量
17
审稿时长
34 weeks
期刊介绍: Botanica Serbica publishes original research papers on all aspects of plant, fungal and microbial biology research including the disciplines of microbiology, mycology, lichenology, bryology, flora, vegetation, biogeography, systematics, taxonomy, plant biotechnology, plant cell biology, plant ecology, environmental plant biology, forestry, genomics, horticulture, limnology, metabolomics, molecular biology, proteomics, virology, plant conservation and protection, and wildlife and ecosystem management.
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