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All Journal Jurnal Kependidikan: Penelitian Inovasi Pembelajaran Prosiding Seminar Biologi EDUSAINS AL KAUNIYAH Prosiding KPSDA Bioeksperimen: Jurnal Penelitian Biologi Biosfer: Jurnal Pendidikan Biologi IKRA-ITH ABDIMAS Indonesian Journal on Learning and Advanced Education (IJOLAE) Journal of Tropical Ethnobiology Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Proceeding ISETH (International Summit on Science, Technology, and Humanity) JURNAL PENGABDIAN PENDIDIKAN MASYARAKAT (JPPM) Proceeding of International Conference on Biology Education, Natural Science, and Technology
Alanindra Saputra
Prodi Pendidikan Biologi FKIP Universitas Sebelas Maret Surakarta Jl. Ir. Sutami No. 36 A, Surakarta, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : AL KAUNIYAH

 1 
Phytoplankton Diversity as Bioindicator of Pollution in Jenes River, Surakarta Pratiwi, Endah; Choirunnisa, Dhiya'; Shafira, Riannisa; Saputra, Alanindra
Al-Kauniyah: Jurnal Biologi Vol. 18 No. 1 (2025): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v1i1.36917

Abstract

AbstractThis research aims to identify the types of phytoplankton, identify the abundance of phytoplankton, and study the relationship between environmental factors and the abundance of phytoplankton. This research was carried out on January 10, 2023, at the Jenes River, Surakarta. Sampling was carried out at 3 observation stations to identify environmental factors (pH, DO, CO2, salinity, BOD, light intensity, temperature, and brightness). Observations were carried out at three stations, namely upstream, middle and downstream, namely, in the morning (06.00–07.00 WIB) and during the day (12.00–14.00 WIB). Measurements of environmental factors were carried out at the integrated laboratory at Sebelas Maret University, Surakarta. The results of the research showed that the phytoplankton found were 9 families consisting of 11 species with an average abundance of 6,834 individuals/L in the morning day and an average abundance of 13,088 individuals/L during the day. The most abundant phytoplankton in the morning observations was Ulothrix sp. Meanwhile, the most abundant phytoplankton in the afternoon observations was Chroococcus sp. This abundance is also influenced by environmental factors such as pH, DO, Salinity, BOD, CO2, and temperature. The research found that the middle station had the highest phytoplankton diversity index during the day (1.6), possibly because it was indicated to be lightly polluted, allowing the life of many phytoplankton such as Closterium sp. and Quadrigula sp. The highest abundance of phytoplankton in the morning is Ulothrix sp., in the afternoon, it is Chroococcus sp.AbstrakPenelitian ini bertujuan untuk mengidentifikasikan jenis fitoplankton, kelimpahan fitoplankton, dan analisis hubungan faktor lingkungan dengan kelimpahan fitoplankton di Sungai Jenes Surakarta. Penelitian ini dilaksanakan pada 10 Januari 2023 di Sungai Jenes, Surakarta. Pengambilan sampel dilakukan di 3 stasiun pengamatan untuk mengukur faktor lingkungan (pH, DO, CO2, salinitas, BOD, intensitas cahaya, suhu, dan kecerahan). Pengamatan dilakukan di tiga stasiun yaitu hulu, tengah dan hilir sebanyak 2 yaitu, pagi hari (06.00–07.00 WIB) dan siang hari (12.00–14.00 WIB). Pengujian faktor lingkungan dilakukan di laboratorium terpadu Universitas Sebelas Maret, Surakarta. Hasil penelitian menunjukkan bahwa fitoplankton ditemukan berjumlah 9 famili terdiri dari 11 spesies dengan rata-rata kelimpahan 6.834 individu/L pagi hari dan rata rata kelimpahan 13.088 individu/L pada siang hari. Fitoplankton yang paling melimpah pada pengamatan pagi hari adalah Ulothrix sp., sedangkan siang hari adalah Chroococcus sp. Kelimpahan ini juga dipengaruhi oleh faktor lingkungan seperti pH, DO, Salinitas, BOD, CO2 , dan suhu. Penelitian menemukan bahwa stasiun tengah memiliki indeks keanekaragaman fitoplankton tertinggi pada siang hari (1,6), kemungkinan karena terindikasi tercemar ringan, memungkinkan hidupnya banyak fitoplankton seperti Closterium sp. dan Quadrigula sp. Kelimpahan fitoplankton tertinggi pada pagi hari adalah Ulothrix sp., sementara pada sore hari adalah Chroococcus sp. 
Endophytic Bacteria From Banana Plants Improves The Growth of Rice (Oryza sativa) and Maize Plants (Zea mays) Sidiq, Yasir; Silviani, Defina Anggita; Rahayu, Triastuti; Saputra, Alanindra; Wahibah, Ninik Nihayatul; Widianto, Donny
Al-Kauniyah: Jurnal Biologi Vol. 18 No. 1 (2025): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v1i1.37884

Abstract

AbstractFive isolates of endophytic bacteria from the roots of klutuk and ambon banana plants produce indole acetic acid (IAA) hormone. However, the evidence of its potential as Plant Growth Promoting Bacteria (PGPB) has not been observed. Therefore, this study aims to determine the effect of bacterial isolate to increase the growth of rice and maize plants. The growth rates of bacterial isolates were measured before the inoculation into the plant root. The root inoculation was performed following a complete randomized design. Root inoculation was carried out using 5 isolates of endophytic bacteria in rice and maize plant seedlings, and the process was repeated 15 times (n=15). The growth of rice and maize plants was monitored from 1st day after planting (dap) to the 14th dap. The collected data were analyzed by student t-test with a significant level of 5% (a= 0.05). The results showed that the logarithmic phase of all isolates was reached at 4 to 16 hours and K10, K25, K35, K111, and A41 isolates increased the height of plants while the K111 isolate can significantly increase the plant height compared to the control. This experiment revealed that the endophytic bacteria from banana plants increase the rice and maize plant’s growth.AbstrakLima isolat bakteri menghasilkan hormon indole acetic acid (IAA) yang berpotensi memacu pertumbuhan tanaman. Namun, bukti empiris potensinya sebagai Plant Growth Promoter Bacteria (PGPB) belum didapatkan. Penelitian ini bertujuan untuk mengetahui pengaruh isolat bakteri terhadap peningkatan pertumbuhan padi dan jagung. Penelitian ini menggunakan metode eksperimen dengan desain rancangan acak lengkap dan setiap perlakuan diulang 15 kali (n= 15). Hasil pertumbuhan tanaman yang diinokulasi dengan isolat bakteri masing-masing dibandingkan dengan perlakuan kontrol. Sebelum perlakuan, tingkat pertumbuhan bakteri endofit diukur sehingga didapatkan fase logaritmik yang cocok untuk dilakukan inokulasi ke akar tanaman. Setelah perlakuan, pertumbuhan tanaman padi dan jagung dipantau dari hari ke-1 setelah tanam (hat) sampai dengan ke-14 hat. Data dianalisis dengan uji t dengan taraf signifikan 5% (α= 0,05). Hasil penelitian menunjukkan bahwa 5 isolat yang berasal dari tanaman pisang mengalami fase logaritmik pada masa inkubasi 4 hingga 16 jam dan semua isolat bakteri meningkatkan tinggi tanaman serta isolat K111 dapat meningkatkan tinggi tanaman secara signifikan dibandingkan dengan kontrol. Penelitian ini mengungkapkan kemampuan bakteri endofit dari tanaman pisang untuk meningkatkan pertumbuhan tanaman.
Co-Authors A.A. Ketut Agung Cahyawan W Adnan, Mazlini Ahmad, Che Nidzam Che Alvyah, W Riza Annisa Fitri, Annisa Arjunani, Rusmalistia Intan Azizah, Adilla Nur Choirunnisa, Dhiya' Chotimah, Yesi Chusnunia, Chusnunia Dewi Puspita Dewi Puspita Sari Diharjo, Dewi Donny Widianto Endang Setyaningsih Farisa, Deasy Iyan Sofyan, Iyan Joko Ariyanto Khoirussyihab, Naufal Lina Agustina Maridi Maridi Maridi, M Marjono Marjono Meidiana, Laily Maudi Muzayyinah Muzayyinah Muzzazinah Muzzazinah Ninik Nihayatul Wahibah Nugraheni, Eka Pratiwi Nurmiyati Nurmiyati Oktavia, Princes Orinta Pamasti, Annisa Cahyaning Pratiwi, Eka Larasati Zulfa Pratiwi, Endah Prayudani, Yanu Probowati, Annisa PUGUH KARYANTO Putri Agustina Ramadhanty, Putri Gayatri Rayana, Anis RETNO PENI SANCAYANINGSIH Rina Astuti Rinanto, Yudhi Rohmah, Triyan Rifa'i Nur Satiti, Dinar Indriati Setyowati, Yanti Shafira, Riannisa Silviani, Defina Anggita Slamet Santosa Sofyan Anif Sri Widoretno Suparti Suparti Suwarno Suwarno Triastuti Rahayu Winduargo, Bias Yasir Sidiq Yuningsih, Septi Erma