Halotropism: Turning Down the Salty Date
نویسندگان
چکیده
Plants have a deep-rooted trust in gravity, but it is not unconditional. A new study shows that, if plant roots sense high doses of salt coming up from below, they dump gravity responses and grow away from the salt contamination.
منابع مشابه
Modeling halotropism: a key role for root tip architecture and reflux loop remodeling in redistributing auxin
A key characteristic of plant development is its plasticity in response to various and dynamically changing environmental conditions. Tropisms contribute to this flexibility by allowing plant organs to grow from or towards environmental cues. Halotropism is a recently described tropism in which plant roots bend away from salt. During halotropism, as in most other tropisms, directional growth is...
متن کاملThegenesis of micro-landforms of muddy and salty plains of Urmia Lake
Introduction Urmia Lake is one of the word-scale large hypersaline lakes with about 5500 square kilometers in the Turkish-Iranian Plateau (NW Iran). The lake surrounded by mountains with a mean elevation of about 2000 meters and the highest peak of 4811 meters. The lake charge with 28 permanent and ephemeral rivers. As a result of anthropogenic and natural reasons, the lake exposed to the rapi...
متن کاملTurning Quantitative: An Analytic Scale to Do Critical Discourse Analysis
Critical Discourse Analysis (CDA) could be seen as a theory in qualitative more than in qualitative stud- ies. This might have led to difficulty in doing CDA. Accordingly, this study attempted to develop a quan- titative profile in the form of an analytic rubric. For this purpose, Fairclough’s model of CDA was select- ed as the research framework. The techniques used for structuring analy...
متن کاملHalotropism Is a Response of Plant Roots to Avoid a Saline Environment
Tropisms represent fascinating examples of how plants respond to environmental signals by adapting their growth and development. Here, a novel tropism is reported, halotropism, allowing plant seedlings to reduce their exposure to salinity by circumventing a saline environment. In response to a salt gradient, Arabidopsis, tomato, and sorghum roots were found to actively prioritize growth away fr...
متن کاملSome Quality Attributes and Biochemical Properties of Nine Iranian Date (Phoenix dactylifera L.) Cultivars at Different Stages of Fruit Development
The fruit of date palm (Phoenix dactylifera L.) is an important horticultural product in the Middle East and North Africa. Among more than 400 reported date palm cultivars in Iran, around 20 cultivars are more important due to having better eating quality and trading values. In this study, the fruit of nine commercially important date cultivars including ‘Barhee’, ‘Breim’, ‘Deiri’, ‘Fersi’, ‘Ga...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Current Biology
دوره 23 شماره
صفحات -
تاریخ انتشار 2013