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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2022.03.010
|2 doi
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|a pubmed24n1128.xml
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|a (DE-627)NLM338691421
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|a (NLM)35338943
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|a (PII)S0981-9428(22)00124-3
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Shaw, Birendra Prasad
|e verfasserin
|4 aut
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|a Biochemical and molecular processes contributing to grain filling and yield in rice
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 05.04.2022
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|a Date Revised 05.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2022 Elsevier Masson SAS. All rights reserved.
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|a The increase in much required rice production through breeding programmes is on decline. The primary reason being poor filling of grains in the basal spikelets of the heavy and compact panicle rice developed. These spikelets are genetically competent to develop into well filled grains, but fail to do so because the carbohydrate assimilates available to them remain unutilized, reportedly due to poor activities of the starch biosynthesizing enzymes, high production of ethylene leading to enhanced synthesis of the downstream signaling component RSR1 protein that inhibits GBSS1 activity, poor endosperm cell division and endoreduplication of the endosperm nuclei, altered expression of the transcription factors influencing grain filling, enhanced expression and phosphorylation of 14-3-3 proteins, poor expression of the seed storage proteins, reduced synthesis of the hormones like cytokinins and IAA that promote grain filling, and altered expression of miRNAs preventing their normal role in grain filling. Since the basal spikelets are genetically competent to develop into well filled mature grains, biotechnological interventions in terms of spikelet-specific overexpression of the genes encoding enzymes involved in grain filling and/or knockdown/overexpression of the genes influencing the activities of the starch biosynthesizing enzymes, various cell cycle events and hormone biosynthesis could increase rice production by as much as 30%, much more than the set production target of 800 mmt. Application of these biotechnological interventions in the heavy and compact panicle cultivars producing grains of desired quality would also maintain the quality of the grains having demand in market besides increasing the rice production per se
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|a Journal Article
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|a Review
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|a Compact-panicle
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|a Endoreduplication
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|a Lax-panicle
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|a Oryza sativa
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|a Panicle-morphology
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|a Starch synthase
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|a Sucrose synthase
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|a Starch
|2 NLM
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|a 9005-25-8
|2 NLM
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|a Sekhar, Sudhanshu
|e verfasserin
|4 aut
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|a Panda, Binay Bhushan
|e verfasserin
|4 aut
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|a Sahu, Gyanasri
|e verfasserin
|4 aut
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|a Chandra, Tilak
|e verfasserin
|4 aut
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|a Parida, Ajay Kumar
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 179(2022) vom: 15. Mai, Seite 120-133
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:179
|g year:2022
|g day:15
|g month:05
|g pages:120-133
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|u http://dx.doi.org/10.1016/j.plaphy.2022.03.010
|3 Volltext
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