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1. Challenges of breeding for longer coleoptile in bread wheat (Triticum aestivum L.)

Author:
Abdolshahi, Roohollah; Foroodi-Safat, Shahrzad; Mokhtarifar, Khadijeh; Ataollahi, Razieh; Moud, Aliakbar Maghsoudi; Kazemipour, Ali; Pourseyedi, Shahram; Rahmani, Ali
Source:
Genetic resources and crop evolution 2021 v.68 no.4 pp. 1517-1527
ISSN:
0925-9864
Subject:
coleoptiles,   etc   ; Triticum aestivum; cultivars; drought; evolution; gibberellic acid; heritability; landraces; plant height; soil; water stress; wheat;     Show all 12 Subjects
Abstract:
... Bread wheat cultivars with longer coleoptile are desired for cultivation in drought prone environments where moisture is available in the deeper layers of the soil. Although there exist several studies about coleoptile length, its relations with important agronomic traits are not clear. In the present research, a diallel mating was generated of seven Iranian and overseas wheat cultivars to evaluat ...
DOI:
10.1007/s10722-020-01081-5

2. Physical mapping of chromosome 7J and a purple coleoptile gene from Thinopyrum intermedium in the common wheat background

Author:
Li, Jianbo; Yu, Zhihui; Zhang, Ahui; Yin, Yan; Tang, Lingrong; Li, Guangrong; Zhang, Peng; Khan, Imtiaz Ahmed; Dundas, Ian; Yang, Zujun
Source:
Planta 2021 v.253 no.1 pp. 22
ISSN:
0032-0935
Subject:
coleoptiles,   etc   ; Thinopyrum intermedium; anthocyanins; biosynthesis; chromosomes; databases; fluorescence; hybridization; introns; multiomics; polymerase chain reaction; seedlings; wheat; wild relatives;     Show all 14 Subjects
Abstract:
... MAIN CONCLUSION: A physical map of Thinopyrum intermedium chromosome 7J was constructed using translocation mapping, and a new seedling purple coleoptile gene was mapped to the bin of FL 0.35–0.63 of 7JS. Thinopyrum intermedium (2n = 6x = 42, JJJˢJˢStSt), a wild relative of common wheat, harbors numerous beneficial genes for wheat improvement. Previous studies showed that wheat–Th. intermedium par ...
DOI:
10.1007/s00425-020-03552-6

3. Redefining the link between rainfall and crop establishment in dryland cropping systems

Author:
Flohr, B.M.; Ouzman, J.; McBeath, T.M.; Rebetzke, G.J.; Kirkegaard, J.A.; Llewellyn, R.S.
Source:
Agricultural systems 2021 v.190 pp. 103105
ISSN:
0308-521X
Subject:
coleoptiles,   etc   ; Mediterranean climate; adaptive management; arid lands; autumn; crop production; cultivars; evaporation; field experimentation; growth chambers; meteorological data; plant establishment; rain; seasonal variation; soil types; wheat; Western Australia;     Show all 17 Subjects
Abstract:
... The seasonal break is a rainfall event that has traditionally initiated sowing and enabled plant establishment in Mediterranean-type environments. Despite its importance to crop production, neither the pattern of the seasonal break, nor the impact of recent autumn rainfall decline in eastern Australia on the pattern has been quantified at a national scale. Adaptive strategies to remove reliance on ...
DOI:
10.1016/j.agsy.2021.103105

4. Identification of QTLs associated with the anaerobic germination potential using a set of Oryza nivara introgression lines

Author:
Liu, Licheng; Li, Xiaoxiang; Liu, Sanxiong; Min, Jun; Liu, Wenqiang; Pan, Xiaowu; Fang, Baohua; Hu, Min; Liu, Zhongqi; Li, Yongchao; Zhang, Haiqing
Source:
Genes & genomics 2021 v.43 no.4 pp. 399-406
ISSN:
1976-9571
Subject:
coleoptiles,   etc   ; Oryza nivara; Oryza sativa; backcrossing; chromosome mapping; chromosomes; direct seeding; genomics; germination; introgression; labor; phenotypic variation; rice; selfing; staple foods; transcription (genetics); transcriptome;     Show all 17 Subjects
Abstract:
... BACKGROUND: Rice (Oryza sativa L.) is an important crop and a staple food for half of the population around the world. The recent water and labor shortages are encouraging farmers to shift from traditional transplanting to direct-seeding. However, poor germination and slow elongation of the coleoptile constrains large-scale application of direct-seeding. OBJECTIVE: This study was aimed to investig ...
DOI:
10.1007/s13258-021-01063-6

5. Lazy rice in space: gravity regulates helical movement in plants

Author:
Baral, Anirban
Source:
Physiologia plantarum 2019 v.165 no.3 pp. 448-450
ISSN:
0031-9317
Subject:
coleoptiles,   etc   ; embryophytes; microgravity; mutants; nutation; rice; seedlings;     Show all 7 Subjects
Abstract:
... Circumnutation, the helical movement of organs, has been observed in diverse species of land plants. Whether circumnutation arises purely from internal growth oscillations or as a response to exogenous forces such as gravity is a subject of active debate. By observing rice seedlings grown under microgravity at the International Space Station (ISS) and analyzing the agravitropic lazy1 mutant, Kobay ...
DOI:
10.1111/ppl.12925

6. Characterization of Quantitative Trait Loci for Germination and Coleoptile Length under Low-Temperature Condition Using Introgression Lines Derived from an Interspecific Cross in Rice

Author:
Akhtamov, Mirjalol; Adeva, Cheryl; Shim, Kyu-Chan; Lee, Hyun-Sook; Kim, Sun Ha; Jeon, Yun-A; Luong, Ngoc Ha; Kang, Ju-Won; Lee, Ji-Yoon; Ahn, Sang-Nag
Source:
Genes 2020 v.11 no.10
ISSN:
2073-4425
Subject:
coleoptiles,   etc   ; Oryza rufipogon; alleles; cultivars; germination; introgression; loci; pleiotropy; quantitative traits; rice;     Show all 10 Subjects
Abstract:
... Previously, five putative quantitative trait loci (QTLs) for low-temperature germination (LTG) have been detected using 96 BC₃F₈ lines derived from an interspecific cross between the Korean japonica cultivar “Hwaseong” and Oryza rufipogon. In the present study, two introgression lines, CR1517 and CR1518, were used as parents to detect additional QTLs and analyze interactions among QTLs for LTG. Th ...
DOI:
10.3390/genes11101200

7. Molecular Mechanisms Supporting Rice Germination and Coleoptile Elongation under Low Oxygen

Author:
Pucciariello, Chiara
Source:
Plants 2020 v.9 no.8
ISSN:
2223-7747
Subject:
coleoptiles,   etc   ; Oryza sativa; air; auxins; endosperm; germination; oxygen; rice; starch; submergence; sugars;     Show all 11 Subjects
Abstract:
... Rice germinates under submergence by exploiting the starch available in the endosperm and translocating sugars from source to sink organs. The availability of fermentable sugar under water allows germination with the protrusion of the coleoptile, which elongates rapidly and functions as a snorkel toward the air above. Depending on the variety, rice can produce a short or a long coleoptile. Longer ...
DOI:
10.3390/plants9081037

8. Auxin action in developing maize coleoptiles: challenges and open questions

Author:
Kutschera, Ulrich; Khanna, Rajnish
Source:
Plant signaling & behavior 2020 v.15 no.6 pp. 1762327
ISSN:
1559-2324
Subject:
coleoptiles,   etc   ; acidification; behavior; biomechanics; corn; etiolation; fungi; fusicoccin; glycoproteins; grasses; indole acetic acid; secretion; turgor; vacuoles;     Show all 14 Subjects
Abstract:
... The year 2020 marks the 150th anniversary of the elucidation of the process of plant organ growth at the cellular level by Julius Sachs (1870). In this Addendum to a Review Article in Molecular Plant, we describe this fundamental discovery and argue that the etiolated grass coleoptile still represents the system of choice for the experimental analysis of auxin (indole-3-acetic acid, IAA)-action. W ...
DOI:
10.1080/15592324.2020.1762327

9. Transcription Factors Rc and OsVP1 Coordinately Regulate Preharvest Sprouting Tolerance in Red Pericarp Rice

Author:
Wang, Jing; Deng, Qianwen; Li, Yuhua; Yu, Yang; Liu, Xin; Han, Yunfei; Luo, Xiangdong; Wu, Xujiang; Ju, Lan; Sun, Jiaqiang; Liu, Aihua; Fang, Jun
Source:
Journal of agricultural and food chemistry 2020 v.68 no.50 pp. 14748-14757
ISSN:
1520-5118
Subject:
coleoptiles,   etc   ; cultivars; food chemistry; genotype; germination; hulling; luciferase; mutants; pericarp; pigmentation; proanthocyanidins; rice; seed dormancy; substitution lines; transcription (genetics); yeasts;     Show all 16 Subjects
Abstract:
... Red pericarp associates with seed dormancy or preharvest sprouting (PHS) tolerance in crops. To identify this association’s molecular mechanism, a PHS mutant Osviviparous1 (Osvp1) was characterized in rice and crossed with Kasalath, a red pericarp cultivar with Rc (red coleoptiles) genotype. Among the dehulled seeds of F₂ progenies, RcRcvp1vp1 seeds performed a lower PHS rate than rcrcvp1vp1 seeds ...
DOI:
10.1021/acs.jafc.0c04748

10. Dynamic genome-wide association analysis and identification of candidate genes involved in anaerobic germination tolerance in rice

Author:
Su, Ling; Yang, Jing; Li, Dandan; Peng, Ziai; Xia, Aoyun; Yang, Meng; Luo, Lixin; Huang, Cuihong; Wang, Jiafeng; Wang, Hui; Chen, Zhiqiang; Guo, Tao
Source:
Rice 2021 v.14 no.1 pp. 1
ISSN:
1939-8425
Subject:
coleoptiles,   etc   ; abscisic acid; adverse effects; cell walls; detection; diameter; direct seeding; environment; flooding tolerance; gene expression regulation; genes; genome-wide association study; germination; gibberellins; labor; length; loci; metabolism; metabolites; oxygen; phenotype; population; rice; single nucleotide polymorphism; technology; transcriptome; varieties; water shortages;     Show all 28 Subjects
Abstract:
... BACKGROUND: In Asian rice production, an increasing number of countries now choose the direct seeding mode because of rising costs, labour shortages and water shortages. The ability of rice seeds to undergo anaerobic germination (AG) plays an important role in the success of direct seeding. RESULTS: In this study, we used 2,123,725 single nucleotide polymorphism (SNP) markers based on resequencing ...
DOI:
10.1186/s12284-020-00444-x

11. Genes related to flooding tolerance during germination and early growth of weedy rice

Author:
Kaspary, Tiago Edu; Cutti, Luan; Rafaeli, Rafael Schwalm; Delatorre, Carla Andrea; Merotto, Aldo, Jr
Source:
Weed research 2020 v.60 no.6 pp. 435-449
ISSN:
0043-1737
Subject:
coleoptiles,   etc   ; anaerobic conditions; anaerobiosis; breeding; carbohydrates; cultivars; environmental impact; evolution; flooding tolerance; gene expression; genes; genotype; germination; paddies; research; rice; sowing; temperature; weeds;     Show all 19 Subjects
Abstract:
... Evolution of flooding tolerance in weedy rice has occurred in several rice‐growing regions, but the genes related to this process and the environmental effects are unknown. The objective of this study was to analyse the expression of genes related to flooding tolerance in response to temperature and flooding during the initial establishment of weedy rice. The experiments were carried out with rice ...
DOI:
10.1111/wre.12448

12. Genome-wide association mapping reveals novel genes associated with coleoptile length in a worldwide collection of barley

Author:
Luo, Hao; Hill, Camilla Beate; Zhou, Gaofeng; Zhang, Xiao-Qi; Li, Chengdao
Source:
BMC plant biology 2020 v.20 no.1 pp. 346
ISSN:
1471-2229
Subject:
coleoptiles,   etc   ; Hordeum vulgare; agronomic traits; alanine; barley; climate; drought; drought tolerance; exons; genetic variation; plant establishment; seedlings; serine; soil water; vigor;     Show all 15 Subjects
Abstract:
... BACKGROUND: Drought is projected to become more frequent and severe in a changing climate, which requires deep sowing of crop seeds to reach soil moisture. Coleoptile length is a key agronomic trait in cereal crops such as barley, as long coleoptiles are linked to drought tolerance and improved seedling establishment under early water-limited growing conditions. RESULTS: In this study, we detected ...
DOI:
10.1186/s12870-020-02547-5

13. Integrated transcriptome, small RNA, and degradome analysis to elucidate the regulation of rice seedling mesocotyl development during the passage from darkness to light

Author:
Lyu, Yusong; Wei, Xiangjin; Zhong, Min; Niu, Shipeng; Ahmad, Shakeel; Shao, Gaoneng; Jiao, Guiai; Sheng, Zhonghua; Xie, Lihong; Hu, Shikai; Wu, Yawen; Tang, Shaoqing; Hu, Peisong
Source:
The crop journal 2020 v.8 no.6 pp. 918-928
ISSN:
2214-5141
Subject:
coleoptiles,   etc   ; Oryza sativa; auxins; direct seeding; enzyme activity; gene expression regulation; gene ontology; genes; growth retardation; microRNA; oxidoreductases; polyamines; rice; seedlings; sequence analysis; shoot tips; soil; transcriptome; transcriptomics;     Show all 19 Subjects
Abstract:
... The mesocotyl, a structure located between the basal part of the seminal root and the coleoptile node of seedlings, contributes to pushing the shoot tip through the soil surface, a function that is essential for the uniform emergence of direct-seeded rice. Its elongation is inhibited by light and induced in darkness. This investigation of an indica rice (P25) with vigorous mesocotyl elongation was ...
DOI:
10.1016/j.cj.2020.05.002

14. Polyamine biosynthetic pathways and their relation with the cold tolerance of maize (Zea mays L.) seedlings

Author:
Gao, Canhong; Sheteiwy, Mohamed S.; Han, Jiajun; Dong, Zhaorong; Pan, Ronghui; Guan, Yajing; Alhaj Hamoud, Yousef; Hu, Jin
Source:
Plant signaling & behavior 2020 v.15 no.11 pp. 1807722
ISSN:
1559-2324
Subject:
coleoptiles,   etc   ; ; Zea mays; adenosylmethionine decarboxylase; arginine decarboxylase; behavior; biosynthesis; carotenoids; chlorophyll; cold tolerance; corn; mesocotyls; ornithine decarboxylase; photosynthesis; polyamines; putrescine; seedling growth; seedlings;     Show all 18 Subjects
Abstract:
... The present study was designed to investigate the inhibition role of two polyamine biosynthesis inhibitors, i.e., D-arginine (D-Arg) and DL-α-difluoromethylornithine (DFMO), in polyamine biosynthesis under chilling stress in different tissues of two maize inbred lines – Huang C (chilling-tolerance) and Mo17 (chilling-sensitive). The results showed that exposure to the lower concentration of polyam ...
DOI:
10.1080/15592324.2020.1807722

15. Effect of Shading on the Sesquiterpene Lactone Content and Phytotoxicity of Cultivated Cardoon Leaf Extracts

Author:
Scavo, Aurelio; Rial, Carlos; Molinillo, José M. G.; Varela, Rosa M.; Mauromicale, Giovanni; Macı́as, Francisco Antonio
Source:
Journal of agricultural and food chemistry 2020 v.68 no.43 pp. 11946-11953
ISSN:
1520-5118
Subject:
coleoptiles,   etc   ; Amaranthus retroflexus; Cynara cardunculus; Portulaca oleracea; cardoons; food chemistry; genotype; harvest date; leaves; phytotoxicity; seed germination; sesquiterpenoids; spring; wheat; winter;     Show all 15 Subjects
Abstract:
... The work described here follows on from a previous study focused on the influence of the genotype and harvest time on the sesquiterpene lactone (STL) profile of Cynara cardunculus L. leaf extracts. The aim of this study was to investigate the effect that 60% plant shading in cultivated cardoon (C. cardunculus var. altilis) leaf extracts harvested in winter and spring had on the composition of STLs ...
DOI:
10.1021/acs.jafc.0c03527

16. The Molecular Regulatory Pathways and Metabolic Adaptation in the Seed Germination and Early Seedling Growth of Rice in Response to Low O2 Stress

Author:
Ma, Mingqing; Cen, Weijian; Li, Rongbai; Wang, Shaokui; Luo, Jijing
Source:
Plants 2020 v.9 no.10
ISSN:
2223-7747
Subject:
coleoptiles,   etc   ; abiotic stress; crops; direct seeding; flooding tolerance; hypoxia; labor; lowlands; oxygen; phenotype; quantitative trait loci; rice; seed germination; seedling growth; seedlings; submergence;     Show all 16 Subjects
Abstract:
... As sessile organisms, flooding/submergence is one of the major abiotic stresses for higher plants, with deleterious effects on their growth and survival. Therefore, flooding/submergence is a large challenge for agriculture in lowland areas worldwide. Long-term flooding/submergence can cause severe hypoxia stress to crop plants and can result in substantial yield loss. Rice has evolved distinct ada ...
DOI:
10.3390/plants9101363

17. Early Vigor of a Pyramiding Line Containing Two Quantitative Trait Loci, Phosphorus Uptake 1 (Pup1) and Anaerobic Germination 1 (AG1) in Rice (O. Sativa L.)

Author:
Shin, Na-Hyun; Han, Jae-Hyuk; Jang, Su; Song, Kihwan; Koh, Hee-Jong; Lee, Jong-Hee; Yoo, Soocheul; Chin, Joong Hyoun
Source:
Agriculture (Basel) 2020 v.10 no.10
ISSN:
2077-0472
Subject:
coleoptiles,   etc   ; agriculture; direct seeding; fertilizers; germination; highlands; labor; length; major genes; phenotype; phosphates; phosphorus; quantitative traits; rice; root systems; soil quality; vigor;     Show all 17 Subjects
Abstract:
... Direct-seeded rice is one of the solutions against the issues of limited labor and time in the rice cropping system. Improved useful traits, such as fertilizer uptake and anaerobic germination, are needed to increase yield and efficiency in the direct seeding system in rice. Pup1 (Phosphorous uptake1) containing PSTOL1 is useful in improving the phosphate uptake under rainfed/upland conditions. Os ...
DOI:
10.3390/agriculture10100453

18. DOF, MYB and TCP transcription factors: Their possible roles on barley germination and seedling establishment

Author:
Seven, Merve; Akdemir, Hulya
Source:
Gene expression patterns 2020 v.37 pp. 119116
ISSN:
1567-133X
Subject:
coleoptiles,   etc   ; Hordeum vulgare; barley; developmental stages; gene expression; genes; leaves; plant establishment; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; roots; seed germination; tissues; transcription factors;     Show all 14 Subjects
Abstract:
... Seed germination is a multi-staged complex process during seed plant life cycle, and it is tightly regulated through a coordinated expression of diverse genes in diverse tissues. As regulatory molecules of gene expression, determination of transcription factors is crucial to understanding molecular basis and regulatory network of germination process and seedling establishment. However, limited dat ...
DOI:
10.1016/j.gep.2020.119116

19. Genome-wide association studies using 50 K rice genic SNP chip unveil genetic architecture for anaerobic germination of deep-water rice population of Assam, India

Author:
Rohilla, Megha; Singh, Nisha; Mazumder, Abhishek; Sen, Priyabrata; Roy, Priyanka; Chowdhury, Dhiren; Singh, Nagendra Kumar; Mondal, Tapan Kumar
Source:
Molecular genetics and genomics 2020 v.295 no.5 pp. 1211-1226
ISSN:
1617-4615
Subject:
coleoptiles,   etc   ; catabolism; direct seeding; genetic improvement; genetic variation; genomics; germination; phenotypic variation; population structure; reactive oxygen species; rice; xanthine dehydrogenase; India;     Show all 13 Subjects
Abstract:
... North Eastern part of India such as Assam is inundated by flood every year where the farmers are forced to grow the traditional tall deep-water rice. Genetic improvement of this type of rice is slow because of insufficient knowledge about their genetic architecture and population structure. In the present investigation, the genetic diversity architecture of 94 deep-water rice genotypes of Assam an ...
DOI:
10.1007/s00438-020-01690-w

20. Localization of amino acids in germinated rice grain: Gamma-aminobutyric acid and essential amino acids production approach

Author:
Kamjijam, Boonyote; Bednarz, Hanna; Suwannaporn, Prisana; Jom, Kriskamol Na; Niehaus, Karsten
Source:
Journal of cereal science 2020 v.93 pp. 102958
ISSN:
0733-5210
Subject:
coleoptiles,   etc   ; bioactive compounds; color; essential amino acids; functional foods; gamma-aminobutyric acid; gas chromatography-mass spectrometry; germination; glutamic acid; rough rice;     Show all 10 Subjects
Abstract:
... Germinated rice is popularly consumed for its high gamma-aminobutyric acid (GABA) and bioactive compounds. Supporting information on how to germinate rice with high GABA content and essential amino acids is lacking. White and colored rough rice were germinated for 0, 24, 48, 72, 96, 120 and 144 h. GABA, GABA substrates and essential amino acids were also investigated using GC-MS and MALDI-MSI. GAB ...
DOI:
10.1016/j.jcs.2020.102958