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Functional Plant Biology Functional Plant Biology Society
Plant function and evolutionary biology
Functional Plant Biology

Functional Plant Biology

Volume 49 Number 9 2022

FP21326Seeing is believing: what visualising bubbles in the xylem has revealed about plant hydraulic function

Amanda A. Cardoso 0000-0001-7078-6246, Cade N. Kane, Ian M. Rimer and Scott A. M. McAdam
pp. 759-772

During drought, plants experience impairements in water transport due to the enter of air bubbles in the lumen of water-transporting xylem cells. Here, we review the optical vulnerability (OV) technique – a recently developed method allowing direct quantification of xylem embolism across plant organs with high spatial and temporal resolution. This method has been widely utilised by the broad pant science community since its development in 2016, allowing us to better understand plant hydraulic function during drought.

FP21338Maize STARCH SYNTHESIS REGULATING PROTEIN1 positively regulates starch biosynthesis in rice endosperm

Long Chen, Ming Du, Long Wang, Wei Yu, Yirong Chen, Beijiu Cheng and Jiandong Wu 0000-0002-0739-2479
pp. 773-783

Starch accounts for approximately 70% of the dry seed weight and is the major factor directly influencing maize quality and yield. However, the key regulatory gene for starch synthesis is remain unclear. Here, we identified the novel maize gene, ZmSSPR1, which could regulate the starch synthesis. The finding suggest that ZmSSRP1 acts as a potential regulator of starch synthesis, providing new insight for molecular breeding of high-yielding high-quality maize.


Soil salinity is a primary abiotic issue affecting yield in tomato (Solanum lycopersicum L.). Cyclic guanosine monophosphate (c-GMP) plays an indispensable role in plant response to salt stress. To accelerate understanding in improving the yield of tomato under salt stress, this study provides valuable information for understanding the functions of the c-GMP in salt stress of tomato.

FP21146The WKRY transcription factor MdWRKY75 regulates anthocyanins accumulation in apples (Malus domestica)

Mengyu Su 0000-0002-1405-4013, Weifang Zuo, Yicheng Wang, Wenjun Liu, Zongying Zhang, Nan Wang and Xuesen Chen
pp. 799-809

We identified a WRKY transcription factor MdWRKY75, which was localised in the nucleus. MdWRKY75 could interact with the promoter of MdMYB1 to promote anthocyanin accumulation by binding to the promoter of it. These findings provided novel insights into the role of a WRKY transcription factor in regulating anthocyanin accumulation in apple (Malus domestica L.).

FP22013Short daily ultraviolet exposure enhances intrinsic water-use efficiency and delays senescence in Micro-Tom tomato plants

Alessia Mannucci, Andrea Scartazza, Antonietta Santaniello, Antonella Castagna 0000-0001-6481-4570, Marco Santin, Mike Frank Quartacci and Annamaria Ranieri
pp. 810-821

The tomato plant is an important crop at the global level and the limitation of water availability is one of the rising problems caused by climate change. We believe that improving plant water status through controlled modification of stomatal conductance using UV radiation might be an interesting tool to address the problem of water limitation. This can be important also in greenhouses, where the screening of natural UV due to plastic/glass coverings might alter the gas exchange performance of plants.

FP22040Salicylic acid mitigates the effects of mild drought stress on radish (Raphanus sativus) growth

Juliane Maciel Henschel 0000-0002-0805-5060, Estephanni Fernanda Oliveira Dantas, Vanessa de Azevedo Soares, Sabrina Kelly dos Santos, Letícia Waléria Oliveira dos Santos, Thiago Jardelino Dias and Diego Silva Batista 0000-0002-5798-7761
pp. 822-831

Water is essential for crop production, and global warming is aggravating the threat of drought. To overcome this, we evaluated the potential of salicylic acid, a natural plant product, to induce drought tolerance in radish; salicylic acid was efficient in reversing the reduction in radish production at mild drought. This discovery will help farmers to avoid crop losses at moderate drought and to ensure food security worldwide.

FP22005Feasibility of using melatonin content in pepper (Capsicum annuum) seeds as a physiological marker of chilling stress tolerance

Ahmet Korkmaz 0000-0002-3886-5953, Elif Düver, Katarzyna Szafranska 0000-0003-2082-8879, Aygül Karaca, Sebnem Köklü Ardiç and Gökçen Yakupoglu
pp. 832-843

Endogenous melatonin content in pepper (Capsicum annuum L.) seeds may be used as a marker of cold stress tolerance. Thus, eliminating low melatonin seed varieties from the breeding programs could significantly improve their effectiveness and save considerable time, money and labour.

Committee on Publication Ethics

Call for Papers

We are seeking contributions for the following Special Issues. More

Best Paper Award

Akitomo Kawasaki has been awarded the ASPS-FPB Best Paper Award for 2021.

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