Gas-Plasma-Activated Water Impact on Photo-Dependent Dormancy Mechanisms in Nicotiana tabacum Seeds.
Gas-Plasma-Activated Water Impact on Photo-Dependent Dormancy Mechanisms in Nicotiana tabacum Seeds.
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DOI：
10.3390/ijms23126709
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发表时间：
2022-06-16
影响因子：
5.6
通讯作者：
Steinbrecher, Tina
中科院分区：
文献类型：
--
作者：
Grainge, Giles;Nakabayashi, Kazumi;Iza, Felipe;Leubner-Metzger, Gerhard;Steinbrecher, Tina
关键词：
种子感知温度、营养水平和光照条件，为发芽时间决策提供信息。光胚层物种的光照有限会导致发芽时间不规则和种群发芽率下降。因此，种子行业正在寻求干预措施来减轻这种风险。气体等离子体水处理 (GPAW) 是一个不断发展的研究领域，其中形成的溶液是由活性氧和氮物质组成的复合物。气体等离子体技术广泛用于灭菌，是食品加工行业的一项新兴技术。此前，在种子上使用 GPAW 可以提高发芽性能，这通常归因于抗氧化防御机制的增强。然而，对于该解决方案如何影响控制种子休眠的机制以及光感受器驱动的发芽机制是否受到影响，人们的了解还很有限。在我们的工作中，我们研究了 GPAW 如何影响控制光依赖性休眠的机制，隔离低能量密度响应 (LFR) 和极低能量密度响应 (VLFR) 下的影响。两个定义的光强度阈值分别通过不同的光敏色素光感受器 PHYB 和 PHYA 影响发芽；我们发现，GPAW 在 VLFR 下显示出群体发芽率显着增加，并进一步描述了每种治疗如何影响关键的生理调节因子。
Seeds sense temperature, nutrient levels and light conditions to inform decision making on the timing of germination. Limited light availability for photoblastic species results in irregular germination timing and losses of population germination percentage. Seed industries are therefore looking for interventions to mitigate this risk. A growing area of research is water treated with gas plasma (GPAW), in which the formed solution is a complex consisting of reactive oxygen and nitrogen species. Gas plasma technology is widely used for sterilisation and is an emerging technology in the food processing industry. The use of the GPAW on seeds has previously led to an increase in germination performance, often attributed to bolstered antioxidant defence mechanisms. However, there is a limited understanding of how the solution may influence the mechanisms that govern seed dormancy and whether photoreceptor-driven germination mechanisms are affected. In our work, we studied how GPAW can influence the mechanisms that govern photo-dependent dormancy, isolating the effects at low fluence response (LFR) and very low fluence response (VLFR). The two defined light intensity thresholds affect germination through different phytochrome photoreceptors, PHYB and PHYA, respectively; we found that GPAW showed a significant increase in population germination percentage under VLFR and further described how each treatment affects key physiological regulators.
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影响因子：
5.6
作者：
Araújo Sde S;Paparella S;Dondi D;Bentivoglio A;Carbonera D;Balestrazzi A
通讯作者：
Balestrazzi A
影响因子：
6.9
作者：
Bethke, PC;Libourel, IGL;Jones, RL
通讯作者：
Jones, RL
DOI：
10.1073/pnas.38.8.662
发表时间：
1952-01-01
影响因子：
11.1
作者：
BORTHWICK, HA;HENDRICKS, SB;TOOLE, VK
通讯作者：
TOOLE, VK
影响因子：
2.9
作者：
Dirk, Lynnette M. A.;Kumar, Santosh;Downie, A. Bruce
通讯作者：
Downie, A. Bruce
母体光环境与基因型相互作用调节烟草种子光休眠
影响因子：
5.7
作者：
Dong, Shuai;Liu, Yi Ling;Li, Zhen Hua
通讯作者：
Li, Zhen Hua