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| 1 | Plant abiotic stress response and nutrient use efficiency显示文摘Abiotic stresses and soil nutrient limitations are major environmental conditions that reduce plant growth,productivity and quality.Plants have evolved mechanisms to perceive these environmental challenges,transmit the stress signals within cells as well as between cells and tissues,and make appropriate adjustments in their growth and development in order to survive and reproduce.In recent years,significant progress has been made on many fronts of the stress signaling research,particularly in understanding the downstream signaling events that culminate at the activation of stress-and nutrient limitation-responsive genes,cellular ion homeostasis,and growth adjustment.However,the revelation of the early events of stress signaling,particularly the identification of primary stress sensors,still lags behind.In this review,we summarize recent work on the genetic and molecular mechanisms of plant abiotic stress and nutrient limitation sensing and signaling and discuss new directions for future studies. | Zhizhong Gong Liming Xiong Huazhong Shi Shuhua Yang Luis R.Herrera-Estrella Guohua Xu Dai-Yin Chao Jingrui Li Peng-Yun Wang Feng Qin Jigang Li Yanglin Ding Yiting Shi Yu Wang Yongqing Yang Yan Guo Jian-Kang Zhu | 2020 | Science China(Life Sciences)2020，63，5： | 94 |
| 2 | Root developmental responses to phosphorus nutrition显示文摘Phosphorus is an essential macronutrient for plant growth and development. Root system architecture(RSA) affects a plant's ability to obtain phosphate, the major form of phosphorus that plants uptake. In this review, I first consider the relationship between RSA and plant phosphorusacquisition efficiency, describe how external phosphorus conditions both induce and impose changes in the RSA of major crops and of the model plant Arabidopsis, and discuss whether shoot phosphorus status affects RSA and whether there is a universal root developmental response across all plant species. I then summarize the current understanding of the molecular mechanisms governing root developmental responses to phosphorus deficiency. I also explore the possible reasons for the inconsistent results reported by different research groups and comment on the relevance of some studies performed under laboratory conditions to what occurs in natural environments. | Dong Liu | 2021 | Journal of Integrative Plant Biology2021，63，6： | 15 |
| 3 | Potassium and phosphorus transport and signaling in plants显示文摘Nitrogen(N), potassium(K), and phosphorus(P) are essential macronutrients for plant growth and development, and their availability affects crop yield. Compared with N, the relatively low availability of K and P in soils limits crop production and thus threatens food security and agricultural sustainability. Improvement of plant nutrient utilization efficiency provides a potential route to overcome the effects of K and P deficiencies. Investigation of the molecular mechanisms underlying how plants sense, absorb, transport, and use K and P is an important prerequisite to improve crop nutrient utilization efficiency. In this review, we summarize current understanding of K and P transport and signaling in plants, mainly taking Arabidopsis thaliana and rice(Oryza sativa) as examples. We also discuss the mechanisms coordinating transport of N and K, as well as P and N. | Yi Wang Yi-Fang Chen Wei-Hua Wu | 2021 | Journal of Integrative Plant Biology2021，63，1： | 12 |
| 4 | 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 |
| 5 | Plant adaptation to low phosphorus availability:Core signaling,crosstalks,and applied implications显示文摘Phosphorus(P)is an essential nutrient for plant growth and reproduction.Plants preferentially absorb P as orthophosphate(Pi),an ion that displays low solubility and that is readily fixed in the soil,making P limita-tion a condition common to many soils and Pi fertilization an inefficient practice.To cope with Pi limitation,plants have evolved a series of developmental and physiological responses,collectively known as the Pi starvation rescue system(PSR),aimed to improve Pi acquisition and use efficiency(PUE)and protect from Pi-starvation-induced stress.Intensive research has been carried out during the last 20 years to un-ravel the mechanisms underlying the control of the PSR in plants.Here we review the results of this research effort that have led to the identification and characterization of several core Pi starvation signaling components,including sensors,transcription factors,microRNAs(miRNAs)and miRNA inhibitors,kinases,phosphatases,and components of the proteostasis machinery.We also refer to recent results revealing the existence of intricate signaling interplays between Pi and other nutrients and antagonists,N,Fe,Zn,and As,that have changed the initial single-nutrient-centric view to a more integrated view of nutrient homeostasis.Finally,we discuss advances toward improving PUE and future research priorities. | Javier Paz-Ares Maria Isabel Puga Monica Rojas-Triana Iris Martinez-Hevia Sergio Diaz Cesar Poza-Carrión Miguel Mi(n)ambres Antonio Leyva | 2022 | Molecular Plant2022，15，1： | 2 |
| 6 | Long-distance blue light signalling regulates phosphate deficiency-induced primary root growth inhibition显示文摘Although roots are mainly embedded in the soil, recent studies revealed that light regulates mineral nutrient uptake by roots. However, it remains unclear whether the change in root system architecture in response to different rhizosphere nutrient statuses involves light signaling. Here, we report that blue light regulates primary root growth inhibition under phosphate-deficient conditions through the cryptochromes and their downstream signaling factors. We showed that the inhibition of root elongation by low phosphate requires blue light signal perception at the shoot and transduction to the root. In this process, SPA1 and COP1 play a negative role while HY5 plays a positive role. Further experiments revealed that HY5 is able to migrate from the shoot to root and that the shoot-derived HY5 autoactivates root HY5 and regulates primary root growth by directly activating the expression of LPR1, a suppressor of root growth under phosphate starvation. Taken together, our study reveals a regulatory mechanism by which blue light signaling regulates phosphate deficiency-induced primary root growth inhibition, providing new insights into the crosstalk between light and nutrient signaling. | Yi-Qun Gao Ling-Hua Bu Mei-Ling Han Ya-Ling Wang Zong-Yun Li Hong-Tao Liu Dai-Yin Chao | 2021 | Molecular Plant2021，14，9： | 2 |
| 7 | 植物营养生物学研究方向探讨显示文摘植物营养生物学是重点研究植物活化、吸收、转运与利用养分的生理、分子及遗传机制的科学。在过去的30年,我国植物营养生物学研究取得了长足的发展,但从国家自然科学基金资助情况分析,与相关学科相比,近10多年来植物营养生物学总体研究力量相对薄弱,缺乏新一代领军人才。一些研究更接近于“纯”植物生物学,与植物营养应用研究出现脱节,对农业绿色发展及化肥产业升级的支撑不够。植物营养生物学研究者应该重视与作物育种、耕作栽培、生态环境、植物保护及化肥产业的合作,跟踪这些领域的研究现状及生产中面临的技术需求,围绕这些领域的技术“瓶颈”开展植物营养基础研究,在提供解决途径的同时创新植物营养生物学机理,从而丰富植物营养学理论。在研究内容上,建议重视控制养分响应度的生理与遗传机制,养分信号与环境信号互作,养分×土壤×管理互作及其对根系生长的影响,养分供应与抗生物胁迫,高产高效的植物营养生理学基础,特种作物的营养机理,化肥产品升级的生物学途径等方向的研究。 | 米国华 | 2022 | 植物营养与肥料学报2022，28，1： | 2 |
| 8 | 植物对缺磷和铝毒协同进化应答的分子生理机制显示文摘酸性土壤占世界潜耕性土壤的50%,而缺磷(P)和铝(Al)毒是酸性土壤限制植物生长的两大营养逆境因子。有机酸、激素和铁(Fe)稳态在植物响应2种胁迫的信号交互和协同进化中扮演核心作用。系统综述了有机酸分泌、STOP1/ALMT1和STAR1/ALS3多效性调节、激素信号转导和细胞壁相关激酶在调控植物根发育和根构型以改善酸性土壤P有效性和Al耐性的分子生理机制,并对该领域发展前景进行了展望。 | 吴佩 李浩 早浩龙 王宇蕴 杨建立 汤利 范伟 | 2020 | 生物技术通报2020，36，7： | 1 |
| 9 | GTPase ROP6 negatively modulates phosphate deficiency through inhibition of PHT1;1 and PHT1;4 in Arabidopsis thaliana显示文摘Phosphorus,an essential macroelement for plant growth and development,is a major limiting factor for sustainable crop yield.The Rho of plant(ROP)GTPase is involved in regulating multiple signal transduction processes in plants,but potentially including the phosphate deficiency signaling pathway remains unknown.Here,we identified that the rop6 mutant exhibited a dramatic tolerant phenotype under Pi-deficient conditions,with higher phosphate accumulation and lower anthocyanin content.In contrast,the rop6 mutant was more sensitive to arsenate(As(V))toxicity,the analog of Pi.Immunoblot analysis displayed that the ROP6 protein was rapidly degraded through ubiquitin/26S proteasome pathway under Pi-deficient conditions.In addition,pull-down assay using GST-RIC1 demonstrated that the ROP6 activity was decreased obviously under Pi-deficient conditions.Strikingly,protein-protein interaction and two-voltage clamping assays demonstrated that ROP6 physically interacted with and inhibited the key phosphate uptake transporters PHT1;1 and PHT1;4 in vitro and in vivo.Moreover,genetic analysis showed that ROP6 functioned upstream of PHT1;1 and PHT1;4.Thus,we conclude that GTPase ROP6 modulates the uptake of phosphate by inhibiting the activities of PHT1;1 and PHT1;4 in Arabidopsis. | Huiling Gao Tian Wang Yanting Zhang Lili Li Chuanqing Wang Shiyuan Guo Tianqi Zhang Cun Wang | 2021 | Journal of Integrative Plant Biology2021，63，10： | 0 |
| 10 | 植物细胞与发育生物学研究进展显示文摘植物细胞与发育生物学是植物科学中的基础学科,涉及植物细胞的基础生物学过程及其调控规律的发现与解析,以及对植物不同发育过程、发育阶段及其转换过程分子机制的探究。阐释这些细胞学和发育过程的调控机制,是实现作物定向分子设计育种的基础,将为我国农业可持续发展和保障粮食安全提供重要支撑。近5~10年,植物细胞与发育生物学相关领域发展迅速,取得了众多重要进展。本综述将从“植物细胞分化与命运决定”“植物信号转导与细胞通讯”“植物可塑性生长发育”“细胞器生物学”“单细胞生物学”五个方面总结近年相关进展,并讨论相关方向的研究重点。 | 薛红卫 焦雨铃 徐通达 丁兆军 武国章 高泓博 王佳伟 杜斐 唐文鑫 于子鹏 孔祥培 苏彤 | 2023 | 植物生理学报2023，59，12： | 0 |
| 11 | 利用CRISPR/Cas9技术编辑甘蓝型油菜富甘氨酸蛋白基因BnGRP1的初步研究显示文摘富甘氨酸蛋白(glycine rich proteins,GRPs)在植物逆境响应中发挥重要作用。前期通过全基因组关联分析获得油菜响应低磷胁迫的候选基因BnGRP1,但是其响应低磷胁迫的分子机制尚不明确。序列分析发现,BnGRP1的CDS全长为399 bp,编码132个氨基酸,其中62个为甘氨酸,占该蛋白氨基酸总量的47.0%。为进一步研究BnGRP1的生物学功能,本研究通过CRISPR/Cas9技术构建了目标基因的双靶点载体G2-TD1TD2,并遗传转化甘蓝型油菜,通过筛选鉴定获得了13株T0代转基因阳性植株。通过TA克隆和测序技术分析了5株转基因植株中Bngrp1的突变位点,其中3株的目标基因序列发生突变,导致无法编码形成正常的富甘氨酸蛋白。本研究为研究BnGRP1的生物学功能提供了实验材料,也为进一步研究BnGRP1响应低磷胁迫的分子机制提供理论和实验基础。 | 李爽 徐珂 李海源 王召鑫 王晨光 徐平 王效华 | 2023 | 中国油料作物学报2023，45，1： | 0 |
| 12 | Light-Triggered Reactions Do Not Bias Boron Deficiency-Induced Root Inhibition of Arabidopsis Seedlings Grown in Petri Dishes显示文摘Dear Editor,For more than two decades,Arabidopsis thaliana plants have been routinely grown in vitro within transparent Petri dishes containing agar-based solid media.Although convenient to study root developmental,nutritional and morphological responses to abiotic cues and to elucidate gene functions following reverse and forward genetic approaches,this system exposes roots to light during illumination of the shoots.Recently,Zheng et al.(2019)raised serious concerns whether root growth behavior and molecular root reactions in this experimental set-up are solely due to the designedly and chemically defined growth substrate composition,in their case phosphate(Pi)deficiency,or due to light-triggered reactions that are artificially-induced by exposing roots to light. | Zhaojun Liu Ricardo Fabiano Hettwer Giehl Manuela Desiree Bienert Nicolaus von Wiren Gerd Patrick Bienert | 2021 | Molecular Plant2021，14，8： | 0 |
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