000 03197nab|a22003977a|4500
001 69029
003 MX-TxCIM
005 20250702104007.0
008 202412s2024||||sz |||p|op||||00||0|eng|d
022 _a2674-1024
024 8 _ahttps://doi.org/10.3390/seeds3040043
040 _aMX-TxCIM
041 _aeng
100 0 _aUttam Bahadur Kunwar
_939598
245 1 0 _aAdaptations of rice seed germination to drought and hypoxic conditions :
_bMolecular and physiological insights
260 _aSwitzerland :
_bMDPI,
_c2024.
500 _aPeer review
500 _aOpen Access
520 _aSeed germination is crucial for plant survival, crop stand establishment, and achieving optimal grain yield. The main objective of this review is to explore the physiological and molecular mechanisms governing rice seed germination under aerobic (water stress) and anaerobic (hypoxic) conditions in direct-seeded rice (DSR) systems. Moreover, it discusses the recent genomic advancements and innovations to improve rice seed germination. Here, we discuss how coleoptile and mesocotyl elongation plays a vital role in anaerobic germination (AG) and the function of raised antioxidants, including superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) in maintaining Reactive Oxygen Species (ROS), and malondialdehyde (MDA) homeostasis for stabilizing seed germination in water-scarce conditions. This study comprehensively highlights the functions and dynamics of phytohormones-GA (gibberellic acid) and ABA (abscisic acid)-key regulatory genes, transcription factors (TFs), key proteins, and regulatory metabolic pathways, including glycolysis, the pentose phosphate pathway (PPP), and the tricarboxylic acid cycle (TCA), in regulating seed germination under both conditions. Conventional agronomic and cultural practices, such as seed selection, seed priming, seed coating, and hardening, have proven to improve seed germination. Moreover, the utilization of molecular and novel approaches-such as clustered regularly interspaced short palindromic repeat (CRISPR-Cas9) mediated genome editing, marker-assisted selection (MAS), genome-wide associations studies (GWAS), single nucleotide polymorphisms (SNPs), multi-omics, RNA sequencing-combined with beneficial quantitative trait loci (QTLs) has expanded knowledge of crop genomics and inheritance. These advancements aid the development of specific traits for enhancing seed germination in DSR.
546 _aText in English
591 _aPandit, N.R. : Not in IRS staff list but CIMMYT Affiliation
650 7 _aDirect sowing
_2AGROVOC
_91792
650 7 _aRice
_2AGROVOC
_91243
650 7 _aGermination
_2AGROVOC
_94740
650 7 _aTranscription factors
_2AGROVOC
_96527
650 7 _aGenes
_2AGROVOC
_93563
650 7 _aQuantitative Trait Loci
_2AGROVOC
_91853
700 0 _aJiancheng Wen
_939599
700 1 _aSubedi, R.
_917296
700 0 _aNaresh Singh Bist
_939600
700 1 _aPandit, N.R.
_928805
773 0 _tSeeds
_gv. 3, no. 4, p. 656-676
_dSwitzerland : MDPI, 2024.
_x2674-1024
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/35752
942 _cJA
_n0
_2ddc
999 _c69029
_d69021