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Journal : AGRITROP

Peranan Sucrose Phosphate Synthase (SPS) dan Acid Invertase (AI) Internoda Tebu (Saccharum officinarum L.) dalam Akumulasi Sukrosa -, MISWAR; SUGIHARTO, BAMBANG; HANDOYO, TRI; AYU MADE, SRI
AGRITROP Vol. 26, No. 4 Desember 2007
Publisher : AGRITROP

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Abstract

Sucrose content is an important component of yield in sugarcane (Saccharum officinarum L.) juice and itssynthesis is determines by the activity of Sucrose phosphate synthase (SPS; EC. 2.4.1.14). This enzyme catalyzes thepenultimate reaction of the formation of sucrose from fructose-6-phosphate (F6P) and uridine-5-diphospho glucose(UDPG). Sucrose is synthesized on leaf and translocated into stalk at where it is accumulated to be accumulatedit. In contrast to SPS, acid invertase (AI) is an enzyme that hydrolyze sucrose to glucose and fructose. The abilityof sugarcane to accumulate the sucrose in stalk is determined by the differences between SPS and AI activities.This study was aimed know role of the internodes SPS and AI in sucrose accumulation in the internodes of somesugarcane varieties. SPS, AI and sucrose were extracted from internodes 1, 3 and 5 of 9 month old sugarcane. Theresults showed that sucrose content for all varieties increased concomitant with the rise in the age of internodes.The decrease in AI activity in internode caused the increase in sucrose content in internodes. Meanwhile, highersucrose content in the older internodes was not followed by higher in SPS activity. Generally, there was strongnegative correlation between sucrose content of internodes with SPS and AI activity. In conclusion, the ability ofsugarcane to accumulate sucrose at internodes was primary determined by AI activity, while SPS activity had asmall role on sucrose accumulation at internodes.
Co-Authors Agus Sasmito, Agus Ahdatu Uli Khikamil Maulidiya Ahmad Ilham Tanzil Ahmad Rivaldy, Dhea Andari, Syamsiyah Yuli Dwi Arif, Muzayin Arifin, Muhammad Reza Arum, Ayu Puspita Assery, Syeh Azmi Saleh Azmia, Azmia Mar'atul Latipah Bambang Sugiharto Bambang Sugiharto Banun Kusumawardani Budi Kriswanto, Budi Candra Prayoga, Mohammad Damayanti, Dwi Putri Oktavia Dwi Putri Oktavia Damayanti Dwika Nano Hariyanto Efsari, Aqilla Nur Fanata, Wahyu Indra Duwi Fariza Oktaviani Galih Kusuma, Raditya Hakim, Mohammad Sulton Hakim, Saila Najma Haq, Ahmad Thoriq Izzul HARDIAN SUSILO ADDY Hopipah, Opi Intan Kartika Setyawati Irma Novita Sari Irza Guari Syah Fitri Juhardi, Ujang Kacung Hariyono Kartikasari, Subekah Nawa Khamidah, Khusna Kiki Ulfaniah Kiki Ulfaniah Laily Ilman Widuri Laily Ilman Widuri, Laily Ilman Latif, Arkanudin Lenny Widjayanthi Luh Putu Suciati Magfiroh, Illia Seldon Mahros Darsin Marcus dos Santos Soares MISWAR - Mochammad Amrun Hidayat Mohammad Ali Mudhor Mohammad Ubaidillah Muchammad Devara , Yusuf Muhammad Hazmi Muhammad Imron Rosadi Muhammad Nur Thoriq Alfy Muhammad Syauqi Munandar, Denna Eriani Nasti, Elyanisa Maharani Nisrina, Sofia Bunga Nur Widodo Parawita Dewanti Popy Hartatie Hardjo Pratiwi, Helti Anggiana Prayoga, Mohammad Candra Pudji Restanto, Didik Puji Rahayu Putu Gita Maya Widyaswari Mahayasih Rahadiyan, Aristyo Ratnasari, Tri Restanto, Didik Restanto, Didik Pudji Rizka Amalia Rony, Zahara Tussoleha Rudi Joelijanto Saputra, Tio Eka Saputro Gumelar, Bachtiar Sholeh Avivi Sigit Soeparjono Slameto Slameto Slameto Slameto SRI AYU MADE Sri Hartatik Suryo Prakoso, Suryo Tri Agus Siswoyo Tri Wahyu Saputra Ubaidillah, Mohammad Umar Santoso Ummi Sholikhah Veronenci Yuliarbi Farlisa Wachju Subchan Wulanjari, Distiana Yani Corvianindya Rahayu Yugistia Bima, Rafi Yuli Witono Zahratus Sakdiyah Zahratus Sakdiyah Zaiyin Rizky Ageng Maulidia