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| 1 | Brassinosteroid regulation in rice seed biology显示文摘Rice(Oryza sativa L.)is not only a model monocotyledon plant,but also an important cereal seed crop.Improvements in seed-related traits is the key to obtaining high grain yield and quality,therefore attracting attention from both scientists and crop breeders.In higher plants,brassinosteroid(BR),a major growth-promoting hormone,plays an important role in regulating numerous agronomic traits associated with both vegetative and reproductive growth,thereby presenting huge application potential.Here,we review recent progress into BR regulation in rice seed biology.Both BR biosynthesis and signaling have been shown to regulate grain size,grain filling,grain number,seed germination and biosynthesis of seed components.Thus,considering the pleiotropic effects of BR,strategies aimed at genetic modulation of the BR pathway have been proposed to improve seed-related traits in rice,and therefore,enhance both yield and quality.This review not only strengthens our understanding of the underlying mechanism and regulatory network of BR-regulated key agronomic traits in rice,but also facilitates the future application of BR in rice breeding programs. | Min Xiong Gong-Neng Feng Qiang Gao Chang-Quan Zhang Qian-Feng Li Qiao-Quan Liu | 2022 | Seed Biology2022，1，1： | 2 |
| 2 | Seed storage and longevity 显示文摘 | Harrington J F | 1972 | Seed Biology1972，，3： | 1 |
| 3 | Seed storage and longevity显示文摘 | Harrington J F | 1972 | Seed Biology1972，，3： | 1 |
| 4 | Accumulation and storage of phosphate and minerals显示文摘 | Raboy V | 1997 | Cellular and Molecular Biology of Plant Seed Development1997，10，3： | 1 |
| 5 | Seed storage and longevity 显示文摘 | Harrington J F | 1972 | Seed Biology1972，，3： | 1 |
| 6 | Reguhtion of the cell cycle during endoreduplication in maize endosperm 显示文摘 | LARKINS BA | 2000 | Plant Biology Minisymposium 15- Seed Biol2000，，： | 1 |
| 7 | Parental regulation of seed development显示文摘Angiosperms produce seeds with two zygotic tissues,namely the embryo and endosperm,from a unique double fertilization process.Seed development occurs within the maternal tissue and relies on maternal resources.Paternal tissue is not directly involved in seed development,and paternal regulation is usually based on the paternal genome of zygotic tissues in the filial generation.The complicated maternal-paternal communications and maternal-zygotic interactions result in distinguishable genetic effects on seed development.Here we review the conceptual framework of parental regulations on seed development.We summarize the common seed development process and look into the regulations pertaining to maternal and zygotic effects.Examples with more complicated interactions at the inter-tissue level are also discussed in the context of interwoven parental regulations. | Chengxiang Li Hao Yu | 2022 | Seed Biology2022，1，1： | 0 |
| 8 | Positional signals establishment in the regulation of female germline specification显示文摘The female germline specification process of a single megaspore mother cell(MMC)of ovule primordium(nucellus)is intriguingly complex because it involves the interaction of different pathways tightly linked with positional information.Various Arabidopsis genes,including the stem cell promoting factor WUSCHEL,have already been shown to be involved in this precise regulation process.Recently,there have been some reviews on MMC specialization,mainly from the aspects of epigenetics,microRNAs and gene regulatory networks.However,those reviews have not taken into consideration the function of positional signals in female germline specification.Here,we review major progress in the cell fate control of female germline specification,highlighting the functions of positional cues. | Hanyang Cai Suzhuo Ma Han Su Kaichuang Liu Mohammad Aslam Yuan Qin | 2022 | Seed Biology2022，1，1： | 0 |
| 9 | The contributions of sporophytic tapetum to pollen formation显示文摘Successful pollen formation is essential for plant reproduction.During anther development,microspore mother cells undergo meiosis to form tetrads.After being released from the tetrad,microspores develop into mature pollen.The tapetum is the innermost layer of anther somatic cells and forms a locule to provide nutrition,enzymes and pollen wall materials for microspore development.Based on the male sterile phenotype,many genes important for tapetum and pollen development have been cloned.In this review,we highlight the genetic pathway of DYT1-TDF1-AMS-MS188-MS1 which acts in tapetal development in Arabidopsis.We also compared this genetic pathway in different species such as Arabidopsis,rice and maize.Based on this pathway,we review recent findings and insights into the contribution of the tapetum to pollen formation at the molecular level.1)Tapetum provides nutrition for microspore development.2)Tapetum provides enzymes to dissolve pectin and callose to release microspores from tetrads.3)Tapetum synthesizes precursors for pollen wall formation via different molecular pathways.4)Tapetum provides precursors for pollen coat formation.5)Tapetum provides small RNAs to regulate genic methylation in the germline cells. | Xiaozhen Yao Wen Hu Zhong-Nan Yang | 2022 | Seed Biology2022，1，1： | 0 |
| 10 | Unfolded protein response and storage product accumulation in rice grains显示文摘Secretory and transmembrane proteins start to synthesize and fold in the endoplasmic reticulum(ER).When the balance between protein folding demands and protein folding capability in the ER is broken,a well-conserved process known as the unfolded protein response(UPR)is induced to restore protein homeostasis.The grain quality of rice(Oryza sativa L.),one of the most important crops that feed more than half of the world’s population,is determined by the accumulation of nutritional components,such as seed storage proteins(SSPs)and starches in the grains.Rice SSPs are synthesized in the secretory pathways of endosperms and their biosynthesis is subject to complex regulation.Here,we focus on summarizing recent advances in our understanding of the role of UPR in grain development,especially in SSP biosynthesis in rice,and provide future perspectives on unanswered questions on improving grain quality through modulating UPR in rice. | Yu-Feng Zhou Tao Qing Xiao-Li Shu Jian-Xiang Liu | 2022 | Seed Biology2022，1，1： | 0 |
| 11 | The impact of the Russia-Ukraine conflict on global grain market and food security:Short-and long-term effects显示文摘Since the 24th February 2022,Russia has been conducting extensive air and missile strikes against the Ukraine military they have also been conducting concurrent ground offensives beyond Crimea and the Donbas breakaway entities.Recent reports highlighted that Russia has continually advanced in different maneuver axes and at present,no one can predict when and how the Ukraine conflict will end.For over three months,the conflict has greatly influenced the global economy and sounded the alarm bells for global food safety,especially to those countries which greatly depend on food and chemical fertilizer import from Russia and Ukraine,as well as those countries sensitive to food price variation shock. | Mengxiang Sun | 2022 | Seed Biology2022，1，1： | 0 |
| 12 | Inaugural Editorial:Seed Biology显示文摘Seed is the most important reproductive organ in plant.Since its first emergence approximately 370 million years ago,seed plant had overwhelming advantage to non-seed plants in reproduction,spreading and colonization in terrestrial land.Beside its essential function in the sexual reproduction of plants,seed is the most economically important agricultural product,offering necessity food for human and wildlife,nutritious feed for livestock.Seeds and grains also provide massive amount of raw materials for manufactured goods,such as coffee,starch,and oil.Seeds also play a pivotal role in development of fruits which supplement significant portion of food and nutrition for human and wildlife. | Wei-Cai Yang | 2022 | Seed Biology2022，1，1： | 0 |
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