Plant roots sense soil compaction through restricted ethylene diffusion

  title={Plant roots sense soil compaction through restricted ethylene diffusion},
  author={Bipin Kumar Pandey and Guoqiang Huang and Rahul Bhosale and Sjon Hartman and Craig J. Sturrock and Lottie Jose and Olivier C. Martin and Michal Karady and Laurentius A. C. J. Voesenek and Karin Ljung and Jonathan Paul Lynch and Kathleen M. Brown and William Richard Whalley and Sacha J. Mooney and Dabing Zhang and Malcolm J. Bennett},
  pages={276 - 280}
Ethylene aplenty signals soil compaction It's tough to drive a spade through compacted soil, and plant roots seem to have the same problem when growing in compacted ground. Pandey et al. found that the problem is not, however, one of physical resistance but rather inhibition of growth through a signaling pathway. The volatile plant hormone ethylene will diffuse through aerated soil, but compacted soil reduces such diffusion, increasing the concentration of ethylene near root tissues. The… Expand
Tomato root senses horizontal/vertical mechanical impedance and correspondingly modulates root/shoot metabolome
Abstract Plant root encounters coarse environs right after emergence from the seed. Little is known about the metabolic changes enabling the root to overcome the soil impedance. It is also not knownExpand
Genotypic variation in soil penetration by maize roots is negatively related to ethylene-induced thickening
It is suggested that prolonged exposure to ethylene could function as a stop signal for axial root growth and is proposed that ethylene insensitive roots, i.e. those that do not thicken and are able to overcome impedance, have a competitive advantage under mechanically impeded conditions as they can maintain their elongation rates. Expand
No neighbour-induced increase in root growth of soybean and sunflower in mesh-divider experiments after controlling for nutrient concentration and soil volume
It is concluded that for some species this response could be a genotype- dependent response as a result of natural or artificial selection, or a context-dependent response so that plants can switch from root over-proliferation to IFD depending on the environment of competition. Expand
Effect of limited compaction on soil solution chemistry in two acidic forest ecosystems: Changes, recovery and impact of liming
Abstract Forest practices are rapidly becoming mechanised in France, resulting in unknown consequences for the current and long-term functioning and functions of ecosystems. Degradation of forestExpand
Ethylene Signaling Facilitates Plant Adaption to Physical Barriers
  • Simu Liu, Hui Chen
  • Medicine
  • Frontiers in Plant Science
  • 2021
The phytohormone ethylene plays an essential role in the morphological development of plants encountering exogenous mechanical impedance, which enables plants to grow optimally in response to physical barriers. Expand
Root anatomy and soil resource capture
Evidence that root anatomical phenotypes present opportunities for crop breeding is summarized, including the importance of phenotypic plasticity, integrated phenotypes, C sequestration, in silico modeling, and novel methods to phenotype root anatomy including image analysis tools. Expand
Does the lack of root hairs alter root system architecture of Zea mays?
Comparing a root hair defective mutant with its corresponding wild-type, it is explored if and how the mutant exhibited root growth adaptation strategies and how dependent this was on substrate. Expand
Ethylene enhances root water transport and aquaporin expression in trembling aspen (Populus tremuloides) exposed to root hypoxia
It is suggested that ethylene facilitates the aquaporin-mediated water transport in plants exposed to root hypoxia, and the expression levels of several aquaporins of the plasma membrane intrinsic protein group (PIP) in trembling aspen seedlings. Expand
Salt Stress Promotes Abscisic Acid Accumulation to Affect Cell Proliferation and Expansion of Primary Roots in Rice
  • Yingying Huang, Jiahao Zhou, +4 authors Hua Qin
  • Medicine
  • International journal of molecular sciences
  • 2021
These findings deepen the understanding of the role of ABA in controlling primary root growth in response to salt stress, and this knowledge can be used by breeders to cultivate rice varieties suitable for saline–alkali land. Expand
Reproductive resilience but not root architecture underpins yield improvement under drought in maize
It is shown that both RSA and yield have changed with decades of maize breeding, but not the crop water uptake, and changes in RSA were not the cause of increased water uptake but an adaptation to high-density stands used in modern agriculture. Expand