Plant Cell. Localized cytokinin biosynthesis is an important response to nitrogen. Int J Mol Sci. Adult panicle rice mites are clear to straw-colored, oval in shape and approximately 1/100 of an inch long. It is when the actual panicle or head begins to form in the base of the shoots or stems, just above the soil surface. Cellular and physiological analyses revealed that the apical spikelets in the paab1-1 mutant undergo programmed cell death, accompanied by nuclear DNA fragmentation and accumulation of higher levels of H2O2 and malondialdehyde. Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). ), v.65, n.5, p.502-507, September/October 2008 explained a small portion of the variation on this trait (Oh et al., 2004), discarding the involvement of ma-jor genes in panicle exsertion. Duan E, Wang Y, Li X, Lin Q, Zhang T, Wang Y, Zhou C, Zhang H, Jiang L, Wang J, Lei C, Zhang X, Guo X, Wang H, Wan J. Epub 2019 Sep 30. 2019 Oct 22;20(20):5241. doi: 10.3390/ijms20205241. BPB is caused by the simultaneous occurrence of high daily minimum temperatures (~22°C) and relative humidity (~77%), which may increase under the current scenario of … National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. (Zhang et al., 2010). (A) Relative expression of…, sALMT7 Mediates Malate Transport in E. coli and X. laevis Oocytes Systems. During feeding, they inject a toxic saliva. New Phytol. 2016). Zhou H, Yang W, Ma S, Luan X, Zhu H, Wang A, Huang C, Rong B, Dong S, Meng L, Wang S, Zhang G, Liu G. Sci Rep. 2020 Sep 28;10(1):15912. doi: 10.1038/s41598-020-73047-7. Bacterial Panicle Blight (BPB), caused by Burkholderia glumae, is a bacterial disease in rice (Oryza sativa) that reduces rice yield and quality for producers and consequently creates higher market prices for consumers. Search for more papers by this author. Structure of panicle (rice inflorescence) is a key morphological trait in the process of domestication and improvement, as directly related to the yield (i.e. The balancing parameter and optimization coefficient … It is determined by the interaction of endogenous signals and environmental factors. Spikelet-specific variation in ethylene production and constitutive expression of ethylene receptors and signal transducers during grain filling of compact- and lax-panicle rice (Oryza sativa) cultivars. Variation in panicle and grain numbers is mainly caused by tiller and panicle branches generated from axillary meristems (AMs). Expression Pattern and Subcellular Localization of the OsALMT7 Protein. We investigated eight panicle architecture traits The branches of a panicle are often racemes. The yield of rice is mostly affected by three factors, namely, panicle number, grain number and grain weight. Haaning AM, Smith KP, Brown-Guedira GL, Chao S, Tyagi P, Muehlbauer GJ. Copyright © 2013 Elsevier B.V. All rights reserved. During rice growth and development, spikelet abortion often occurs at either the top or the basal part of the panicle under unfavorable conditions, causing a reduction in fertile spikelet number and thus grain yield. Inheritance of panicle exsertion in rice 503 Sci. Identifying panicle initiation in rice June 2018, Primefact 1278, Third edition . Tina Dunn, Technical Officer, NSW DPI, Yanco . Therefore, both panicle structure and grain shape are important agronomic traits related to grain yield (Wu et al. Many environmental factors could induce or suppress florigen expression. (a) Morphology of wild‐type (WT) and dps1 plant at maturity grown in paddy field. Saami Thair Basmati Rice. Epub 2013 Oct 29. (A) A representative…, NLM Photo about Plant disease, dirty panicle in rice from fungi. See this image and copyright information in PMC. Although the low ability of smosl to produce tillers was not fully reversed in LRC1, this was however compensated by an increased grain weight per panicle , thereby achieving high grain yield per plant in the latter (Fig. OsSPL14 promotes panicle branching and higher grain productivity in rice. APHIS’ decision to reclassify PRM is based on a reevaluation of the regulatory program, outreach activities conducted with the rice-producing states, and scientific literature indicating that PRM has not caused economic damage in temperate rice-growing regions similar to the United States. 2020 Jan;225(1):356-375. doi: 10.1111/nph.16133. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error, Degeneration of Top Spikelets Occurs at Late Stages of Panicle Development in, Cell Death-Related Events Are Triggered in. G3 (Bethesda). 2019 Aug 29;7:e7595. Please enable it to take advantage of the complete set of features! KNOW MORE . Rice panicle temperature (T p) is a key factor for studying high temperature impacts on spikelet sterility.Comparing with measuring T p by hand, a T p simulation model could obtain T p data readily. OUR PRODUCT RANGE. A panicle is a much-branched inflorescence. Customer tastes and expectations have been finely segmented to deliver authentic products and services, that go well with all the customer needs. Flower number per panicle is one of the most important traits in rice productivity determination. (A) Malate content in the…, Injection of Malate to paab1-1 Plants Alleviates Apical Panicle Abortion. All rights reserved. OsSHI1 Regulates Plant Architecture Through Modulating the Transcriptional Activity of IPA1 in Rice. Bacterial panicle blight caused by Burkholderia glumae is one of the most severe seed-borne bacterial diseases of rice in the world. The number of flowers is established in the early stages of panicle development. Epub 2019 Mar 25. This site needs JavaScript to work properly. Zhang X, Zhou J, Huang N, Mo L, Lv M, Gao Y, Chen C, Yin S, Ju J, Dong G, Zhou Y, Yang Z, Li A, Wang Y, Huang J, Yao Y. Int J Mol Sci. Phenotypic Chatracterization of paab1-1 .…, Phenotypic Chatracterization of paab1-1 . Plant Cell. Int J Mol Sci. Florigen is a key endogenous signal that is synthesized in the leaves and moves to the shoot apex to induce flowering. The forming of the panicle marks the end of the tillering or vegetative phase and the beginning of the reproductive phase. The Panicle-SEG algorithm is based on a pre-trained model with both in-lab and field measurements of 684 images, including 49 top-view field rice images, 30 overhead-head view field rice images, 302 pot-grown rice side-view images, and 303 pot-grown rice top-view images , and the pre-trained model is available online for download . J Plant Physiol. Clipboard, Search History, and several other advanced features are temporarily unavailable. Panicle rice mites cause damage to plants by directly feeding on leaf tissue in the leaf sheath and developing grains at the milk stage, and indirectly, by transmitting fungal pathogens. In rice panicle development, new meristems are generated sequentially in an organized manner and acquire their identity in a time- and position-dependent manner. (A) Fine mapping of paab1-1 . Role of brassinosteroids in rice spikelet differentiation and degeneration under soil-drying during panicle development. DEGENERATED PANICLE AND PARTIAL STERILITY 1 (DPS1) encodes a cystathionine β-synthase domain containing protein required for anther cuticle and panicle development in rice. Wang Y, Zhang Y, Zhang Q, Cui Y, Xiang J, Chen H, Hu G, Chen Y, Wang X, Zhu D, Zhang Y. PeerJ. Heading date (flowering time) in rice (Oryza sativa) is crucial for plants to adapt to the growing environment and for the improvement of yield potential. eCollection 2020. Sekhar S, Panda BB, Mohapatra T, Das K, Shaw BP, Kariali E, Mohapatra PK. Clipboard, Search History, and several other advanced features are temporarily unavailable. (Piracicaba, Braz. 2020 Apr 10;21(1):294. doi: 10.1186/s12864-020-6702-1. Rice is a very flexible/adaptable plant that grows well under both flooded and rainfed conditions. Search for more papers by this author . Epub 2015 Mar 14. © 2018 American Society of Plant Biologists. Hua W, Tan C, Xie J, Zhu J, Shang Y, Yang J, Zhang XQ, Wu X, Wang J, Li C. Theor Appl Genet. Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. paab1-1 exhibits degeneration of spikelets on the apical portion of panicles during late stage of panicle development. Since the gene MONOCULM 1 (MOC 1) was first characterized as a key regulator in controlling rice tillering and branching, great p …. Institute of Plant Science and Resources, Okayama University, Chuo 2‐20‐1, Kurashiki, 710‐0046 Japan. Rice (Oryza sativa L.) is one of the most important staple food crops in the world, and rice tillering and panicle branching are important traits determining grain yield. Panicle initiation (PI) is a growth stage that represents the start of the reproductive phase in rice development. Shuai Mu. The methods that are currently used to count the number of grains per panicle are manually conducted, making them labor intensive and time consuming. Please enable it to take advantage of the complete set of features! Image of food, panicle, crop - 106889718 Panicle initiation (PI; R0 in the rice growth staging system) may occur before the maximum tiller number is reached in very-short-season and some short-season cultivars. PANICLE INDUSTRIES offers an extensive portfolio of brands that have been carefully developed to appeal to local markets around the world. Immature panicle rice mites are clear to straw-colored and about half the size of adults. Tiller number is one of the most important agronomic traits that determine rice (Oryza sativa) yield. Comparative transcriptome analysis of panicle development under heat stress in two rice (. NIH Panicle size is a critical determinant of grain yield in rice (Oryza sativa) and other grain crops. Together, these results suggest that OsALMT7-mediated transport of malate into the apical portion of panicle is required for normal panicle development, thus highlighting a key role of malate in maintaining the sink size and grain yield in rice and probably other grain crops. The experiments included three nutrient management treatments: F, S1 and S2. This review focuses on recent advances, with emphasis on rice tillering and panicle branching genes, and their regulatory networks. Rice grain yield comprises four indices: panicle number (PN), grain number per panicle (GN), 1000-grain weight, and percentage of ripened grain (Xing and Zhang 2010; Ikeda et al. (A)…, Malate Content Is Decreased in the paab1-1 Panicle. Zhang W, Sheng J, Xu Y, Xiong F, Wu Y, Wang W, Wang Z, Yang J, Zhang J. BMC Plant Biol. (b) Mature panicle showing reduced seed‐setting rate in dps1.The arrow indicates the completely dried and degenerated spikelets in the apical portion of the dps1 panicle. Deveshwar P, Prusty A, Sharma S, Tyagi AK. NIH  |  Total grain yield of rice can be calculated as grain number x average grain weight, where grain number is the total number of grains per panicle. Active growth of tiller bud (TB) requires high amount of mineral nutrients, however, the mechanism underlying the distribution of mineral nutrients to TB with low transpiration is unknown. 126 kg N ha−1, 120 kg N ha−1, 72 kg N ha−1labeled with 30 atom% excess 15N were applied in … Epub 2019 Jul 15. Damage is often difficult to characterize because the mite is commonly interacting with other pests of rice such as Sarocladium oryzae (sheath rot) and Burkholderia glumae (bacterial panicle blight). COVID-19 is an emerging, rapidly evolving situation. Naoki Yamaji. However, populations are greatest at the booting stage and decline as the plant matures. Consistent with a function for OsALMT7 as a malate transporter, the panicle of the paab1-1 mutant contained less malate than the wild type, particularly at the apical portions, and injection of malate into the paab1-1 panicle could alleviate the spikelet degeneration phenotype. Some of these important genes were shown to be applicable for molecular breeding of high-yielding rice.  |  (A)…, OsALMT7-Mediated Outward Currents and Anion…, OsALMT7-Mediated Outward Currents and Anion Selectivity of OsALMT7 in X. laevis Oocytes. Although the mechanisms that regulate each component trait are not yet fully … The mites have been associated with sheath rot as well as bacterial panicle blight. Phenotypic characterization of the rice (degenerated panicle and partial sterility 1) dps1 mutant. doi: 10.7717/peerj.7595. (A) Gross morphology of an adult paab1-1 plant,…, Degeneration of Top Spikelets Occurs at Late Stages of Panicle Development in paab1-1…, Cell Death-Related Events Are Triggered in paab1-1 . Lu Z, Yu H, Xiong G, Wang J, Jiao Y, Liu G, Jing Y, Meng X, Hu X, Qian Q, Fu X, Wang Y, Li J. Keywords: Epub 2019 Oct 18. Since the gene MONOCULM 1 (MOC 1) was first characterized as a key regulator in controlling rice tillering and branching, great progress has been achieved in identifying important genes associated with grain yield, elucidating the genetic basis of yield-related traits. Controlling the trade-off between spikelet number and grain filling: the hierarchy of starch synthesis in spikelets of rice panicle in relation to hormone dynamics. Agric. Producing rice with an ideal panicle structure is an important direction for super high-yield breeding, and 1000-grain weight which determined by grain shape can also directly affect rice yield (Wang et al. A field experiment was combined with a mini-plot experiment with 15N labelled urea applied at the panicle stage in rice. Panicle size is a critical determinant of grain yield in rice (Oryza sativa) and other grain crops. Front Plant Sci. In this study, we report the isolation and functional characterization of a panicle abortion mutant named panicle apical abortion1-1 (paab1-1). 2010 Jun;42(6):545-9. doi: 10.1038/ng.592. Alternative splicing of a barley gene results in an excess-tillering and semi-dwarf mutant. OsALMT7-Mediated Outward Currents and Anion Selectivity of OsALMT7 in. This site needs JavaScript to work properly. Brian Dunn, Research Agronomist, NSW DPI, Yanco. HHS The molecular…, Expression Pattern and Subcellular Localization…, Expression Pattern and Subcellular Localization of the OsALMT7 Protein. eCollection 2019. Rice (Oryza sativa L.) is one of the most important staple food crops in the world, and rice tillering and panicle branching are important traits determining grain yield. Azizi P, Osman M, Hanafi MM, Sahebi M, Rafii MY, Taheri S, Harikrishna JA, Tarinejad AR, Mat Sharani S, Yusuf MN. 2019 May;31(5):1026-1042. doi: 10.1105/tpc.19.00023. In the wild genetic background of rice, we found that plants with a cultivated-like type of closed panicle had significantly reduced seed shedding through seed retention. Panicle architectural traits in rice (branching, rachis length, spikelet number) are established between panicle initiation and heading stages. Eggs are clear in color, oval-shaped, and about 1/3 the size of adults. The mites can carry sheath rot spores on their body. eCollection 2019. Genome wide screening and comparative genome analysis for Meta-QTLs, ortho-MQTLs and candidate genes controlling yield and yield-related traits in rice. 2020 Apr 9;10(4):1197-1212. doi: 10.1534/g3.119.400612. Read more. College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095 China. Miura K, Ikeda M, Matsubara A, Song XJ, Ito M, Asano K, Matsuoka M, Kitano H, Ashikari M. Nat Genet. 2020 Nov 12;11:586462. doi: 10.3389/fgene.2020.586462. Nitrogen fertilizer enhances local cytokinin synthesis to increase flower numbers in the panicles of rice.  |  NLM Summary Degeneration of apical spikelets and reduced panicle fertility are common reasons for low seed‐setting rate in rice (Oryza sativa). Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. Epub 2010 Dec 6. Molecular insights into the regulation of rice kernel elongation. USA.gov. An entire lifecycle can be completed in 7-21 days depending on temperature. The number grain per panicle of rice is an important phenotypic trait and a significant index for variety screening and cultivation management. The rice plant has round and hollow stems, flat leaves, and panicles at the top of the plant. Epub 2010 May 23. 2019 Jun;46(6):507-523. doi: 10.1071/FP18153. seed number). 2019 Nov 25;20(23):5922. doi: 10.3390/ijms20235922. Front Genet. NCI CPTC Antibody Characterization Program. (A) to (C) Apical spikelets…, Map-Based Cloning of paab1-1 . Panicle : F in ally, I ask a l l rice f a rm ers located in the same region to plant their rice at the same time, because larger areas of land with rice that ripens at the same time will have less damage. It . Photoperiod (day length) is the most important environmental factor affecting flow… A transporter for delivering zinc to the developing tiller bud and panicle in rice. 2020 Jan;133(1):163-177. doi: 10.1007/s00122-019-03448-4. 2015 May 1;179:21-34. doi: 10.1016/j.jplph.2015.03.003. A panicle may have determinate or indeterminate growth. Rice panicle structure usually refers to the size, number, and growth … Rice plants can be infested throughout the entire year. During rice growth and development, spikelet abortion often occurs at either the top or the basal part of the panicle under unfavorable conditions, causing a reduction in fertile spikelet number and thus grain yield. Genome-wide binding analysis of the transcription activator ideal plant architecture1 reveals a complex network regulating rice plant architecture. 2019). Funct Plant Biol. In 2011, APHIS reclassified panicle rice mite (Steneotarsonemus spinki, PRM) to a non-quarantine pest. 2019 Apr 1;20(7):1613. doi: 10.3390/ijms20071613. Tillering and panicle branching genes in rice. Phytohormone-Mediated Molecular Mechanisms Involving Multiple Genes and QTL Govern Grain Number in Rice. Natural Genetic Variation Underlying Tiller Development in Barley (. MOC1 encodes a putative GRAS family nuclear protein that regulates AM formation.  |  In general, indica rice has a long and sparse panicle, whereas japonica rice has a short and dense panicle, which questions whether there is a diverse genetic basis of panicle architecture between indica and japonica rice. Panigrahi R, Kariali E, Panda BB, Lafarge T, Mohapatra PK. Unconditional and conditional analysis of epistasis between tillering QTLs based on single segment substitution lines in rice. What is Panicle Initiation? Heading in these cultivars may be staggered due to later tillers which produce panicles. 2020 Feb 14;10:1752. doi: 10.3389/fpls.2019.01752. Transcriptomic and Co-Expression Network Profiling of Shoot Apical Meristem Reveal Contrasting Response to Nitrogen Rate between. Khahani B, Tavakol E, Shariati V, Fornara F. BMC Genomics. In this study, LMM were used to perform a GWAS analysis. 2013), where PN is associated with the number of tillers and GN with panicle branching. 2013 Oct;25(10):3743-59. doi: 10.1105/tpc.113.113639.  |   |  COVID-19 is an emerging, rapidly evolving situation. Abstract. Curr Opin Plant Biol. Molecular cloning revealed that paab1-1 harbors a mutation in OsALMT7, which encodes a putative aluminum-activated malate transporter (OsALMT7) localized to the plasma membrane, and is preferentially expressed in the vascular tissues of developing panicles. Crit Rev Biotechnol. They vary among genotypes and are prone to Genotype x Environment interactions. Current Advances in Molecular Mechanisms and Physiological Basis of Panicle Degeneration in Rice. USA.gov. Park SI, Kim JJ, Shin SY, Kim YS, Yoon HS. 2019 Nov;39(7):904-923. doi: 10.1080/07388551.2019.1632257. Together with panicle number, panicle architecture determines sink-based yield potential. 2011 Feb;14(1):94-9. doi: 10.1016/j.pbi.2010.11.002. 2019 Sep 18;19(1):409. doi: 10.1186/s12870-019-2025-2. Zafar SA, Patil SB, Uzair M, Fang J, Zhao J, Guo T, Yuan S, Uzair M, Luo Q, Shi J, Schreiber L, Li X. HHS With the completion of rice genome project, efforts are on to characterize the genes responsible for yield component traits such as the number of panicle-bearing tillers per plants, number of well-filled grains (spikelets) per panicle, and thousand grain weight with profound implications on yield improvement. Panicle Initiation (PI) is the start of the reproductive phase of rice development. ABERRANT PANICLE ORGANIZATION 1; AMs; APC/C; APO1; BIN2; BRASSINOSTEROID-INSENSITIVE 2; BRs; D14; DENSE AND ERECT PANICLE; DEP; Dwarf 14; FC1; FINE CULM1; IDEAL PLANT ARCHITECTURE1; IDS1; INDETERMINATE SPIKELET1; IPA1; LRR; LS/LAS; Lax Panicle; MAX; MOC 1; MONOCULM 1; MORE AUXILIARY GROWTH; OsSPL14; Panicle branching gene; QTLs; Regulation; Rice; SHORT PANICLE 1; SL; SMALL PANICLE; SNB; SPA; SQUAMOSA PROMOTER BINDING PROTEIN-LIKE14; SUPERNUMERARY BRACT; TB1; TEOSINTE BRANCHED1; Tillering gene; UFO; UNUSUAL FLORAL ORGANS; WFP; Wealthy Farmer's Panicle; anaphase promoting complex/cyclosome; axillary meristems; brassinosteroids; lateral suppressor; lax; leucine-rich repeat; quantitative trait loci; sp1; strigolactone; tad1; te; tiller enhancer; tillering and dwarf 1.

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