【摘 要】
：
Endogenously synthesized plant hormones direct the ordered growth of tissues,organs,and the overall plant body plan,thereby integrating exteal information with
【机 构】
：
School of Molecular Sciences, The University of Western Australia, Perth, WA 6009, Australia
论文部分内容阅读
Endogenously synthesized plant hormones direct the ordered growth of tissues,organs,and the overall plant body plan,thereby integrating exteal information with inteal metabolism.Because plant hormones can have such dramatic and systemic effects on plant morphology,hormone activity has been a target of selective breeding for desirable plant traits,whether consciously or otherwise.Most notably,the dwarf varieties of wheat and rice that underpinned the Green Revolution resulted from mutations that affect gibberellin signaling (Hedden,2002).Generally,plant hormones require a pathway for hormone biosynthesis,a mechanism for hormone perception and signal transduction,and a series of downstream effector components that bring about a cellular response.Conceptually,modification of any one of these steps-either by genetic or chemical means-could bring about changes in plant development.In an effort to rationally develop high-yield crops that will support anticipated population growth,substantial research effort continues to focus on a better understanding of plant hormones and of the ways to manipulate their activity.
其他文献
Unlike actively moving animals,plants actively change their body architecture via growth of their diverse organs in response to environmental clues and stresses
Plant survival depends on seed germination,progression through post-germinative developmental checkpoints,and adaptation to abiotic stresses.All these processes
引言在新西兰,硼对草地产量几乎无影响。但 Sherrell,1983年的试验表明,在能促进植物快速生长的条件下,把红、白三叶草种植在有效硼含量低的土壤中时,产量有变化。因此,在以
俄罗斯《观点报》网站2015年10月5日报道：俄设计师宣布研制出空天飞机发动机。这是一种新型的航空航天动力装置，它显露了军民两用的空天飞机即将问世的曙光，因而引起了人们的关注。 早就定名的空天飞机 早在20世纪50年代，我国著名科学家钱学森就提出了研制空天飞机的设想。顾名思义，空天飞机是一种身兼航空与航天两种职能的飞行器。它既采用飞机使用的吸空气式发动机，可在大气层中飞行，又采用航天器使用的火
The seeds and roots of many angiosperm species can produce polysaccharide-rich mucilage,which directly interacts with the surrounding biosphere and potentially
Rice is one of the most widely consumed cereal crops and staple food for more than half of the worlds population,especially in Asian countries (Li and Cui, 2014
本文基于多变量系统奈氏阵列设计方法和鲁棒对角优势保证系统鲁棒稳定的结论,提出一种多变量系统鲁棒设计方法,该方法设计的鲁棒预补偿器使广义对象在一定摄动范围内严格符合
Heterochromatin,being transcriptionally inactive,is the highly condensed form of chromatin that is associated with Histone H3 lysine 9 methylation (H3K9me) and
The COVID-19 pandemic has left an indelible mark on Africas Agribusiness sector.Millions of households whose livelihoods depend on farming are facing a huge foo