The sweet smell of sucrose transport during rose petal abscission
Blog, Research, The Plant Cell, The Plant Cell: In a NutshellLiang et al. demonstrate that auxin modulates sucrose transport to repress petal abscission in rose. The Plant Cell (2020). https://doi.org/10.1105/tpc.19.00695
By Yue Liang, Chuyan Jiang, Yang Liu, Yuerong Gao, Jingyun Lu, Palinuer Aiwail, Zhangjun Fei, Cai-Zhong Jiang, Bo Hong, Chao Ma and Junping…
A Chloroplast-derived Signal Attenuates Growth in Red Light by Acting on the phyB-PIF Pathway
Blog, Plant Physiology, Plant Physiology: News and Views, ResearchAuthor: David S. Favero1 (ORCID: 0000-0002-6879-0323)
[email protected]
Affiliation:
1RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045 Japan
Plant growth and development are regulated by a complex network of signals, many of which converge at the nucleus and…
Local auxin biosynthesis is required for root regeneration after wounding (Nature Plants)
Plant Science Research WeeklyDuring root development, auxin accumulates at the stem cell niche (SCN) located at the root meristem. Both polar auxin transport and local auxin biosynthesis contribute to the auxin accumulation. During root regeneration after wounding, the source of auxin accumulation is still a question. To address…
Peptide-Receptor Signaling Pumps the Brakes on Auxin Biosynthesis and Ethylene Signaling to Harmonize Root Growth and Nodulation
Blog, Research, The Plant Cell, The Plant Cell: In BriefNitrogen (N) is the most abundant element in Earth’s atmosphere. However, plants must capture this essential element from soil through their roots. To do this, legume roots forge symbioses with rhizobia to initiate nodule development. Root nodules provide rhizobia an environment suitable for converting…
Mix, Match, and Maize: A Synthetic System for Maize Nuclear Auxin Response Circuits
Plant Physiology, Plant Physiology: News and Views, ResearchDhineshkumar Thiruppathi 1,2
ORCID ID: 0000-0002-2018-3356
Donald Danforth Plant Science Center,
Saint Louis, Missouri 63132
1Lead author
2Author for contact: [email protected]
The phytohormone auxin plays a major part in nearly every plant process, including growth…
Rocks in the auxin stream: Wound-induced auxin accumulation and ERF115 expression synergistically drive stem cell regeneration (PNAS)
Plant Science Research WeeklyPlants have evolved exquisite regenerative capacities to repair wounds or even reform complete organs thanks to the proliferative activity of stem cell niches residing in meristems. Different types of injuries elicit different developmental and regenerative responses. However, a key player seems to be…
Fluctuating auxin response gradients determine pavement cell-shape acquisition (PNAS)
Plant Science Research WeeklyThe leaf epidermis is composed primarily of undulated pavement cells arranged in a jigsaw puzzle-like architecture, with neighboring cells flawlessly interlacing with one another thanks to synchronized growth, thus making it an ideal model to study morphogenesis regulation. Seeking to better understand…
Divide to heal: auxin regulates wound-induced cell division in roots (PNAS)
Plant Science Research WeeklyAmong the stresses that sessile plants face, wounding is peculiar as it can be caused by both biotic and abiotic sources. While studies of wounding in animal systems have largely focused on the repair mechanisms, less is known about wound healing in plants. In an attempt to throw light on this, Hoermayer…
How do auxin temporal dynamics regulate patterning? (eLIFE)
Plant Science Research WeeklyAuxin forms spatial gradients that are implicated in organ morphogenesis. However, it is not known how temporal auxin gradients are integrated with the spatial information. In this paper, Galvan-Ampudia, Cerutti et al., showed using a ratiometric quantitative auxin reporter (quantitative DII-VENUS) that…