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| 1 | Shaping Taste: The Molecular Discovery of Rice Genes Improving Grain Size, Shape and Quality显示文摘Modern-day human life is absolutely dependent upon the food that we derive from our crop plants.We eat grains,fruits,roots,tubers and other structures,all of which are constructed via coordinated organ growth.Whilst plant organ identity is first established in apical meristems(vegetative and floral shoot meristems and root meristems),and in other meristematic regions,the final size and shape of organs are defined by subsequent coordination of organ expansion in longitudinal | Nicholas P.Harberd | 2015 | Journal of Genetics and Genomics2015，42，11： | 5 |
| 2 | A transcription factor STOP1-centered pathway coordinates ammonium and phosphate acquisition in Arabidopsis显示文摘Phosphorus(P)is an indispensable macronutrient required for plant growth and development.Natural phosphate(Pi)reserves are finite,and a better understanding of Pi utilization by crops is therefore vital for worldwide food security.Ammonium has long been known to enhance Pi acquisition efficiency in agriculture;however,the molecular mechanisms coordinating Pi nutrition and ammonium remains unclear.Here,we reveal that ammonium is a novel initiator that stimulates the accumulation of a key regulatory protein,STOP1,in the nuclei of Arabidopsis root cells under Pi deficiency.We show that Pi deficiency promotes ammonium uptake mediated by AMT1 transporters and causes rapid acidification of the root surface.Rhizosphere acidification-triggered STOP1 accumulation activates the excretion of organic acids,which help to solubilize Pi from insoluble iron or calcium phosphates.Ammonium uptake by AMT1 transporters is downregulated by a CIPK23 protein kinase whose expression is directly modulated by STOP1 when ammonium reaches toxic levels.Taken together,we have identified a STOP1-centered regulatory network that links external ammonium with efficient Pi acquisition from insoluble phosphate sources.These findings provide a framework for developing possible strategies to improve crop production by enhancing the utilization of non-bioavailable nutrients in soil. | Wen Hao Tian Jia Yuan Ye Meng Qi Cui Jun Bo Chang Yu Liu GuiXin Li Yun Rong Wu Ji Ming Xu Nicholas P.Harberd Chuan Zao Mao Chong Wei Jin Zhong Jie Ding Shao Jian Zheng | 2021 | Molecular Plant2021，14，9： | 5 |
| 3 | Restriction of iron loading into developing seeds by a YABBY transcription factor safeguards successful reproduction in Arabidopsis显示文摘Iron(Fe)storage in plant seeds is not only necessary for seedling establishment following germination but is also a major source of dietary Fe for humans and other animals.Accumulation of Fe in seeds is known to be low during early seed development.However,the underlying mechanism and biological significance remain elusive.Here,we show that reduced expression of Arabidopsis YABBY transcription factor INNER NO OUTER(INO)increases embryonic Fe accumulation,while transgenic overexpression of INO results in the opposite effect.INO is highly expressed during early seed development,and decreased INO expression increases the expression of NATURAL RESISTANCE-ASSOCIATED MACROPHAGE PROTEIN 1(NRAMP1),which encodes a transporter that contributes to seed Fe loading.The relatively high embryonic Fe accumulation conferred by decreased INO expression is rescued by the nramp1 loss-of-function mutation.We further demonstrated that INO represses NRAMP1 expression by binding to NRAMP1-specific promoter region.Interestingly,we found that excessive Fe loading into developing seeds of ino mutants results in greater oxidative damage,leading to increased cell death and seed abortion,a phenotype that can be rescued by the nramp1 mutation.Taken together,these results indicate that INO plays an important role in safeguarding reproduction by reducing Fe loading into developing seeds by repressing NRAMP1 expression. | Li Sun Yun Qi Wei Kang Hao Wu Jing Ying Yan Jie Na Xu Yun Rong Wu Gui Xin Li Ji Ming Xu Nicholas P.Harberd Zhong Jie Ding Shao Jian Zheng | 2021 | Molecular Plant2021，14，10： | 3 |
| 4 | Tease out the future: How tea research might enable crop breeding for acid soil tolerance显示文摘Unlike most crops,in which soil acidity severely limits productivity,tea(Camellia sinensis)actually prefers acid soils(pH 4.0–5.5).Specifically,tea is very tolerant of acidity-promoted aluminum(Al)toxicity,a major factor that limits the yield of most other crops,and it even requires Al for optimum growth.Understanding tea Al tolerance and Al-stimulatory mechanisms could therefore be fundamental for the future development of crops adapted to acid soils.Here,we summarize the Al-tolerance mechanisms of tea plants,propose possible mechanistic explanations for the stimulation of tea growth by Al based on recent research,and put forward ideas for future crop breeding for acid soils. | Zhong Jie Ding Yuan Zhi Shi Gui Xin Li Nicholas P.Harberd Shao Jian Zheng | 2021 | Plant Communications2021，2，3： | 3 |
| 5 | Green Revolution DELLAs: From translational reinitiation to future sustainable agriculture显示文摘The Green Revolution(GR)of the 1960s saw spectacular increases in cereal crop yields,enabled by widespread adoption of high-yielding semi-dwarf varieties and increased fertilizer use.Semi-dwarfism is caused by mutant wheat Reduced height-1(Rht-1)and rice semi-dwarf1(sd1)alleles,respectively,which confer increased harvest index(grain to straw ratio)and reduced yield loss from“lodging”(flattening of crops by wind or rain).However,despite their obvious global food security benefits,the underlying mechanisms via which GR dwarfing alleles actually work remained unknown.This began to change with the molecular discovery of Rht1(Peng et al.,1999). | Qian Liu Kun Wu Nicholas P.Harberd Xiangdong Fu | 2021 | Molecular Plant2021，14，4： | 2 |
| 6 | Ethylene promotes seed iron storage during Arabidopsis seed maturation via ERF95 transcription factor显示文摘Because Iron(Fe)is an essential element,Fe storage in plant seeds is necessary for seedling establishment following germination.However,the mechanisms controlling seed Fe storage during seed development remain largely unknown.Here we reveal that an ERF95 transcription factor regulates Arabidopsis seed Fe accumulation.We show that expression of ERF95 increases during seed maturation,and that lack of ERF95 reduces seed Fe accumulation,consequently increasing sensitivity to Fe deficiency during seedling establishment.Conversely,overexpression of ERF95 has the opposite effects.We show that lack of ERF95 decreases abundance of FER1 messenger RNA in developing seed,which encodes Fe-sequestering ferritin.Accordingly,a fer1-1 loss-of-function mutation confers reduced seed Fe accumulation,and suppresses ERF95-promoted seed Fe accumulation.In addition,ERF95 binds to specific FER1 promoter GCC-boxes and transactivates FER1 expression.We show that ERF95 expression in maturing seed is dependent on EIN3,the master transcriptional regulator of ethylene signaling.While lack of EIN3 reduces seed Fe content,overexpression of ERF95 rescues Fe accumulation in the seed of ein3 loss-of-function mutant.Finally,we show that ethylene production increases during seed maturation.We conclude that ethylene promotes seed Fe accumulation during seed maturation via an EIN3-ERF95-FER1-dependent signaling pathway. | Ying Sun Jia Qi Li Jing Ying Yan Jun Jie Yuan Gui Xin Li Yun Rong Wu Ji Ming Xu Rong Feng Huang Nicholas P.Harberd Zhong Jie Ding Shao Jian Zheng | 2020 | Journal of Integrative Plant Biology2020，62，8： | 1 |
| 7 | 转录因子HY5自地上部向根系长距离移动协调植物碳-氮平衡显示文摘很早人们就发现值物根系的氮吸收要协调地上部的光合同碳以维持基本的碳氮平衡,从而保证植物能够适应多变的生存环境,但这其中地上部和根系之间远程协调的分子机制并不为人所知。 | Xiangbin Chen Qinfang Yao Xiuhua Gao Caifu Jiang Nicholas P.Harberd 傅向东 | 2017 | 科学新闻2017，19，4： | 0 |
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