Reducing stomatal density in barley improves drought tolerance without impacting on yield.
Jonathan Hughes,Christopher Hepworth,Christopher Hepworth,Christian Dutton,Jessica Dunn,Lee Hunt,Jennifer Stephens,Jennifer Stephens,Robbie Waugh,Robbie Waugh,Duncan D. Cameron,Duncan D. Cameron,Julie E. Gray +12 more
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TLDR
The results demonstrate the potential of manipulating stomatal frequency for the protection and optimization of cereal crop yields under future drier environments and identify and manipulate the expression of a barley ortholog.Abstract:
The epidermal patterning factor (EPF) family of secreted signaling peptides regulate the frequency of stomatal development in model dicot and basal land plant species. Here, we identify and manipulate the expression of a barley (Hordeum vulgare) ortholog and demonstrate that when overexpressed HvEPF1 limits entry to, and progression through, the stomatal development pathway. Despite substantial reductions in leaf gas exchange, barley plants with significantly reduced stomatal density show no reductions in grain yield. In addition, HvEPF1OE barley lines exhibit significantly enhanced water use efficiency, drought tolerance, and soil water conservation properties. Our results demonstrate the potential of manipulating stomatal frequency for the protection and optimization of cereal crop yields under future drier environments.read more
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Genetic strategies for improving crop yields
Julia Bailey-Serres,Julia Bailey-Serres,Jane E. Parker,Elizabeth A. Ainsworth,Giles E. D. Oldroyd,Julian I. Schroeder +5 more
TL;DR: The potential of plant sciences to address post-Green Revolution challenges in agriculture is considered and emerging strategies for enhancing sustainable crop production and resilience in a changing climate are explored.
Journal ArticleDOI
Impact of Stomatal Density and Morphology on Water-Use Efficiency in a Changing World.
TL;DR: The current understanding of how stomatal number and morphology are involved in regulating water-use efficiency is reviewed and the potential and limitations of manipulatingStomatal development to increase drought tolerance and to reduce water loss in crops as the climate changes are discussed.
Journal ArticleDOI
Rice with reduced stomatal density conserves water and has improved drought tolerance under future climate conditions
Robert S. Caine,Xiaojia Yin,Jennifer Sloan,Emily L. Harrison,Umar Mohammed,Timothy Fulton,Timothy Fulton,Akshaya Kumar Biswal,Akshaya Kumar Biswal,Jacqueline Dionora,Caspar Chater,Caspar Chater,Robert A. Coe,Robert A. Coe,Anindya Bandyopadhyay,Erik H. Murchie,Ranjan Swarup,W. Paul Quick,Julie E. Gray +18 more
TL;DR: Rice plants with fewer stomata are drought tolerant and more conservative in their water use, and they should perform better in the future when climate change is expected to threaten food security.
Journal ArticleDOI
Optogenetic manipulation of stomatal kinetics improves carbon assimilation, water use, and growth.
Maria Papanatsiou,Jan Petersen,Louise Henderson,Yizhou Wang,Yizhou Wang,John M. Christie,Michael R. Blatt,Michael R. Blatt +7 more
TL;DR: The potential of enhancing stomatal kinetics to improve water use efficiency without penalty in carbon fixation is demonstrated.
Journal ArticleDOI
Response Mechanism of Plants to Drought Stress
TL;DR: The main drought stress signals and signal transduction pathways in plants are described, and the functional genes and regulatory genes related to drought stress are listed, respectively.
References
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TL;DR: It is shown that tremendous progress could be made by halting agricultural expansion, closing ‘yield gaps’ on underperforming lands, increasing cropping efficiency, shifting diets and reducing waste, which could double food production while greatly reducing the environmental impacts of agriculture.
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The role of stomata in sensing and driving environmental change.
TL;DR: Stomatal morphology, distribution and behaviour respond to a spectrum of signals, from intracellular signalling to global climatic change, which results from a web of control systems reminiscent of a ‘scale-free’ network, whose untangling requires integrated approaches beyond those currently used.
Journal ArticleDOI
A physical, genetic and functional sequence assembly of the barley genome
Klaus F. X. Mayer,Robbie Waugh,Peter Langridge,Timothy J. Close,Roger P. Wise,Andreas Graner,Takashi Matsumoto,Kazuhiro Sato,Alan H. Schulman,Ruvini Ariyadasa,Daniela Schulte,Naser Poursarebani,Ruonan Zhou,Burkhard Steuernagel,Martin Mascher,Uwe Scholz,Bu-Jun Shi,Kavitha Madishetty,Jan T. Svensson,Prasanna R. Bhat,Matthew J. Moscou,Josh Resnik,Gary J. Muehlbauer,Pete E. Hedley,Hui Liu,Jenny Morris,Zeev Frenkel,Avraham Korol,Hélène Bergès,Stefan Taudien,Marius Felder,Marco Groth,Matthias Platzer,Axel Himmelbach,Stefano Lonardi,Denisa Duma,Matthew Alpert,Francesa Cordero,Francesa Cordero,Marco Beccuti,Gianfranco Ciardo,Yaqin Ma,Steve Wanamaker,Federica Cattonaro,Vera Vendramin,Simone Scalabrin,Slobodanka Radovic,Rod A. Wing,Michele Morgante,Thomas Nussbaumer,Heidrun Gundlach,Mihaela Martis,Jesse Poland,Matthias Pfeifer,Cédric Moisy,Jaakko Tanskanen,Andrea Zuccolo,Manuel Spannagl,Joanne Russell,Arnis Druka,David Marshall,Micha Bayer,David Swarbreck,Dharanya Sampath,Sarah Ayling,Melanie Febrer,Mario Caccamo,Tsuyoshi Tanaka,Steve Wannamaker,Thomas Schmutzer,John W. S. Brown,John W. S. Brown,Geoffrey B. Fincher,Nils Stein +73 more
TL;DR: An integrated and ordered physical, genetic and functional sequence resource that describes the barley gene-space in a structured whole-genome context and suggests that post-transcriptional processing forms an important regulatory layer.
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