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

Functional Plant Biology

Volume 50 Number 4 2023

FP22241Rice (Oryza sativa) alleviates photosynthesis and yield loss by limiting specific leaf weight under low light intensity

Shoumik Saha, Shampa Purkayastha, Nimitha K, Sebantee Ganguly, Subhadeep Das, Shamba Ganguly, Nilanjan Sinha Mahapatra, Kriti Bhattacharya, Dibakar Das 0000-0002-4232-1756, Arup K. Saha, Tirthankar Biswas, Prabir K. Bhattacharyya and Somnath Bhattacharyya 0000-0002-9261-6931
pp. 267-276

Plasticity in photosynthesis and specific leaf weight (SLW) are traits that allow shade-tolerant rice (Oryza sativa L.) genotypes to alleviate yield loss under shade. This was achieved by a reduction in SLW with increased intercellular CO2 concentration (Ci). Leaf nitrogen did not influence photosynthesis rate under shade, but an accumulation of biomass was associated with yield. Limiting SLW with increased Ci is the principal strategy to alleviate loss in photosynthesis and yield under low light intensity.


Durum wheat (Triticum durum L.) seeds treated with sonication or hydropriming germinated faster, had a higher germination rate index, lower mean time to germination, higher seedling emergence and shoot length in the cold test, enhanced GABA shunt pathway, and GAD mRNA transcription level compared to untreated seeds. This in turn significantly improved the germination performance to maintain the C:N metabolic balance in wheat seeds during seed germination, especially under cold stress.

FP22243Identification and functional analysis of calcium sensor calmodulins from heavy metal hyperaccumulator Noccaea caerulescens

Lu Han, Xiaohua Wu, Kailin Hou, Hongshan Zhang, Xueshuang Liang, Cheng Chen, Zhijing Wang and Chenjia Shen 0000-0002-8575-0593
pp. 294-302

Noccaea caerulescens (J. Presl & C. Presl) F. K. Mey. is a heavy metal hyperaccumulator exhibiting extreme tolerance to various heavy metal stresses. A Ca2+-binding protein in N. caerulescens has been cloned and functional identified. Our data provides a clue to reveal the adaptation strategy of plants to metalliferous soils.

FP22213Trans-generational effect of cerium oxide-nanoparticles (nCeO2) on Chenopodium rubrum L. and Sinapis alba L. seeds

Ivana Milenkovic 0000-0001-7957-4485, Maria Baruh Krstic, Sladana Z. Spasic and Ksenija Radotic
pp. 303-313

This is the first report on the trans-generational effects of carbohydrate-coated nCeO2 on any plant seeds. We showed that maternal effects of the different nCeO2 treatments persist to at least the second generation in seeds and that enhanced germination in all tested generations of Sinapis alba L. (white mustard) seeds recommends nCeO2 for seed priming. The investigation of trans-generational effects should be included in any risk assessment addressing the release of nCeO2 (uncoated or coated) to the environment.

FP22061Physiological and transcriptome analysis of Dendrobium officinale under low nitrogen stress

Hangtao Wu, Jin Li, Qian Pu, Chunyi Mi, Guohong Zeng, Ying Chen, Dedong Kong, Xiaorong Zuo, Xiufang Hu 0000-0002-8509-6763 and Ou Li 0000-0002-5384-0463
pp. 314-334

The traditional Chinese herbal medicine Dendrobium officinale Kimura et. Migo is a typical low nitrogen-tolerant plant, and its mechanism in response to low nitrogen stress has not previously been reported. This study reports the physiological and transcriptomic changes of D. officinale under low nitrogen stress, and reveals the low nitrogen tolerance mechanism of D. officinale. This work is of great significance for improving the yield and medicinal value of D. officinale.


Low temperature (LT) is an important abiotic stress that seriously affects the production and development of maize (Zea mays L). In this study, two waxy maize hybrids were selected and planted in two experimental environments to determine the dynamic changes in leaf photosynthesis, antioxidant system, hormones, and grain yield under post-silking LT stress. This study can be used as a reference for waxy maize to develop adaptation strategies under future climate conditions.

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Australian Society of Plant Scientists

Official Journal of the Australian Society of Plant Scientists (asps.org.au).

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Best Paper Award

Phan Thi Thanh Hoai has been awarded the ASPS-FPB Best Paper Award for 2023.

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