a non-pigmented granule in a plant cell which stores amylopectin
amyloplast in American English
(ˈæməlouˌplæst)
noun
Botany
a starch-forming granule in plants; leucoplast
Word origin
[1885–90; amylo- + -plast]This word is first recorded in the period 1885–90. Other words that entered Englishat around the same time include: booster, lineup, scrum, toner, zoom
Examples of 'amyloplast' in a sentence
amyloplast
Destruction of amyloplast envelopes caused the separation of the starch granules.
Sabaruddin Zakaria, Toshiaki Matsuda, Youji Nitta 2000, 'Morphological Studies on the Mobilization of Reserves in Germinating Rice Seed', Plant Production Sciencehttp://dx.doi.org/10.1626/pps.3.152. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Stages from amyloplast to chloroplast are investigated with regard to fine structure.
M. L. Frean, D. R. Barrett, D. Ariovich, M. Wolfson, C. F. Cresswell 1983, 'Intraspecifíc variability in Alloteropsis semialata (R. Br.) Hitchc.', Bothalia: African Biodiversity & Conservationhttps://abcjournal.org/index.php/abc/article/view/1260. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
When the amyloplast was degraded, the exterior of the starch granules also started to decompose.
Sabaruddin Zakaria, Toshiaki Matsuda, Youji Nitta 2000, 'Morphological Studies on the Mobilization of Reserves in Germinating Rice Seed', Plant Production Sciencehttp://dx.doi.org/10.1626/pps.3.152. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The results indicated that amyloplast sedimentation direction corresponded with the eventual direction of tuber elongation under different gravistimulation orientations.
Michio Kawasaki, Saki Kanehira, Mohammad Nazrul Islam 2014, 'Effects of the Direction of Gravistimulation on Tuber Formation and Amyloplast Distributionin Tuber Tips of Chinese Yam', Plant Production Sciencehttp://dx.doi.org/10.1626/pps.17.298. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Transmission electron microscopy showed that the intact starch granules were enveloped tightly within the amyloplast membrane.
Sabaruddin Zakaria, Toshiaki Matsuda, Youji Nitta 2000, 'Morphological Studies on the Mobilization of Reserves in Germinating Rice Seed', Plant Production Sciencehttp://dx.doi.org/10.1626/pps.3.152. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Small and round starch granules were often formed at parts of the periphery in the amyloplast.
Michio Kawasaki, Toshiaki Matsuda, Yasunori Nakamura, Osamu Ueno, Mitsutaka Taniguchi,Youji Nitta, Hiroshi Miyake 2002, 'Structural and Immunocytochemical Characterization of the Synthesis and Accumulationof Starch in Sweet Potato (Ipomoea batatas Lam.) Tuberous Root', Plant Production Sciencehttp://dx.doi.org/10.1626/pps.5.152. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The first step in the reserve mobilization in pith parenchyma cells was the decomposition of the amyloplast envelope.
Michio Kawasaki, Toshiaki Matsuda, Hiroshi Miyake, Mitsutaka Taniguchi, Youji Nitta 2001, 'Morphological Studies on the Mobilization of Reserves in Japanese Yam (Dioscorea japonicaThunb.) Seed Tuber and Eddo (Colocasia esculenta Schott var. antiquorum Hubbard &Rehder) Seed Corm on and after Sprouting', Plant Production Sciencehttp://dx.doi.org/10.1626/pps.4.304. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Changes in endosperm structure and amyloplast membrane integrity during grain development were also examined by electron microscopy.
Haixia Qin, Dongyun Ma, Xin Huang, Jie Zhang, Wan Sun, Gege Hou, Chenyang Wang, TiancaiGuo 2019, 'Accumulation of glycolipids in wheat grain and their role in hardness during graindevelopment', Crop Journalhttp://www.sciencedirect.com/science/article/pii/S2214514118301247. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)