Starchy degradation is related with radicle emergence during wheat seed germination

MengQi, Yin; Song, Wenjian; Guo, Genyuan; Fan, Li; Sheteiwy, Mohamed S.; RongHui, Pan; Hu, Jin; Guan, Yajing

doi:10.15258/sst.2018.46.2.16

Cited by 2 publications

(2 citation statements)

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“…In this study, the activities of SOD, CAT, POD and α-amylase increased significantly in maize embryos of DS, as did proline content, which is an important osmotic regulator in plants [25]. These results are consistent with earlier reports on lentil seed germination under osmotic stress [26], Brassica napus seed germination in response to salt stress [27] and wheat seed germination under low-temperature conditions [28]. Additionally, GO enrichment analysis also indicated that "response to oxidative stress" and "peroxidase activity" were the significant GO terms in DEGs detected only in embryos of DS, and expression of the selected gene-encoding peroxidase protein (GRMZM2G405459) was verified by RT-PCR and determined in both Mo17 and B73.…”

Section: Discussionsupporting

confidence: 92%

Transcriptome Analysis Revealed the Key Genes and Pathways Involved in Seed Germination of Maize Tolerant to Deep-Sowing

Wang

et al. 2022

Plants

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To improve our understanding of the mechanism of maize seed germination under deep sowing, transcriptome sequencing and physiological metabolism analyses were performed using B73 embryos separated from ungerminated seeds (UG) or seeds germinated for 2 d at a depth of 2 cm (normal sowing, NS) or 20 cm (deep sowing, DS). Gene ontology (GO) analysis indicated that “response to oxidative stress” and “monolayer-surrounded lipid storage body” were the most significant GO terms in up- and down-regulated differentially expressed genes (DEGs) of DS. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis suggested that “phenylpropanoid biosynthesis” and “starch and sucrose metabolism” were critical processes in maize seed germination under deep-sowing conditions. Consistent with DEGs, the activities of superoxide dismutase, catalase, peroxidases and α-amylase, as well as the contents of gibberellin 4, indole acetic acid, zeatin and abscisic acid were significantly increased, while the jasmonic-acid level was dramatically reduced under deep-sowing stress. The expressions of six candidate genes were more significantly upregulated in B73 (deep-sowing-tolerant) than in Mo17 (deep-sowing-sensitive) at 20 cm sowing depth. These findings enrich our knowledge of the key biochemical pathways and genes regulating maize seed germination under deep-sowing conditions, which may help in the breeding of varieties tolerant to deep sowing.

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Section: Discussionsupporting

confidence: 92%

Transcriptome Analysis Revealed the Key Genes and Pathways Involved in Seed Germination of Maize Tolerant to Deep-Sowing

Wang

et al. 2022

Plants

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“…Menurut Matthews dan Powell (2011), uji RE berkorelasi erat dengan rataan waktu perkecambahan (mean germination time / MGT), semakin rendah nilai MGT maka waktu yang dibutuhkan benih untuk berkecambah semakin cepat. Yin et al (2018) menyatakan bahwa kecepatan pemunculan radikula erat kaitannya dengan tingkat mobilisasi pati pada benih.…”

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Modifikasi Suhu Uji Pemunculan Radikula untuk Mempersingkat Pengujian Vigor Benih Jagung

Khusna

Zamzami

Ilyas

2022

J. Agron. Indonesia

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Radicle emergence (RE) atau pemunculan radikula adalah uji vigor cepat yang direkomendasikan ISTA tahun 2014 untuk benih jagung pada suhu 20 °C selama 66 jam. Tujuan penelitian ini adalah mengembangkan uji RE benih jagung pada suhu 25 °C dan menentukan satu waktu pengamatan yang tepat untuk mempersingkat periode pengujian vigor benih jagung. Penelitian dilakukan di Laboratorium Penyimpanan dan Pengujian Mutu Benih, dan Kebun Percobaan Cikabayan IPB mulai Desember 2019 sampai dengan Maret 2020. Rancangan percobaan yang digunakan dalam pengujian RE yaitu split-plot, dengan sembilan lot benih (varietas) sebagai petak utama dan 14 waktu pengamatan (jam ke- 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, dan 66 setelah pengecambahan) sebagai anak petak. Rancangan kelompok lengkap teracak satu faktor (lot benih) digunakan untuk pengujian mutu benih di laboratorium dan vigor bibit di lapangan. Hasil uji RE kemudian dikorelasikan dengan daya berkecambah, vigor benih, dan vigor bibit. Hasil penelitian menunjukkan bahwa uji RE pada benih jagung dengan metode uji antar kertas pada suhu 25 °C dan diamati saat 51 jam ± 15 menit setelah pengecambahan terbukti berkorelasi erat dan dapat memprediksi daya berkecambah, rataan waktu perkecambahan, indeks vigor, kecepatan tumbuh, dan rataan waktu pemunculan bibit. Kata kunci: daya berkecambah, korelasi, lot benih, varietas, vigor benih, vigor bibit

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Starchy degradation is related with radicle emergence during wheat seed germination

Cited by 2 publications

References 0 publications

Transcriptome Analysis Revealed the Key Genes and Pathways Involved in Seed Germination of Maize Tolerant to Deep-Sowing

Transcriptome Analysis Revealed the Key Genes and Pathways Involved in Seed Germination of Maize Tolerant to Deep-Sowing

Modifikasi Suhu Uji Pemunculan Radikula untuk Mempersingkat Pengujian Vigor Benih Jagung

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