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The Physiological Responses of Zea Mays L. and Cucumis Sativus L. on Drought Stress and Re-Watering Meriem, Selis; Muliyah, Evi; Angio, Melisnawati H.; Triadiati, Triadiati
Jurnal Biodjati Vol 6 No 2 (2021): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v6i2.12572

Abstract

Drought leads to deficit water availability and its detrimental effects seriously threaten plant growth. This study assessed the physiological, biochemical, and antioxidant adjustments in different types of photosynthetic plants between Zea mays L. (C4) and Cucumis sativus L. (C3 plant) under response to short-term drought stress. Analyses of relative water content (RWC), proline, and ascorbic acid (AsA) were performed to explore how these plants react to drought. Fifteen-day-old plants were subjected to full irrigation or gradual drought periods for 2-d, 4-d, 6-d, and 8-d following by recovery for 7-d. The results revealed that drought significantly reduces leaf RCW in both plants. Re-watered Z. mays after 8-d drought was higher than C. sativus and reestablished RCW by 23% of stressed plant although remained lower by 9% of the well-watered plant. While, proline and AsA contents in Z. mays were higher than those in C. sativus in drought treatment at 8-d (2.05 µmol/g FW) and 6-d (3174.60 AsA/100 g FW), respectively, that could demonstrate osmotic adjustment ability in this C4 species. The increased proline in both plants also indicates a good strategy for plants to recover. Rewatering gave a decrease AsA and could be expected that plants restore cellular activity after oxidative injury. Based on our study, proline is the most informative biochemical marker to differentiate plant response to drought and Z. mays adjusted defense mechanism to drought rather than C. sativus due to higher accumulation of proline, better antioxidant activity, and improved RCW after recovery.
Keanekaragaman Jenis Pohon dan Pola Penyebarannya pada Beberapa Wilayah Kawasan CA dan TWA Pananjung Pangandaran Azuhra, Fatimah; Fatina, Ikfina Nawal; Hasna, Chumairo Nurul; Hanifiyah, Nur; Azizy, Maulana Khalil; Muliyah, Evi
Biosel Biology Science and Education Vol. 15 No. 1 (2026): BIOSEL (Biology Science and Education: Jurnal Penelitian Sains dan Pendidikan)
Publisher : INSTITUT AGAMA ISLAM NEGERI AMBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33477/bs.v15i1.11189

Abstract

The Pananjung Pangandaran Nature Reserve (CA) and Recreational Park (TWA) are in-situ conservation areas that play an important role in preserving biodiversity, particularly lowland forest flora along the southern coast of West Java. However, these areas are increasingly subjected to anthropogenic pressures resulting from tourism activities and population growth, which may affect ecosystem stability. This study aimed to analyze tree species diversity, identify tree distribution patterns, and assess abiotic components within the CA and TWA of Pananjung Pangandaran. The research employed a quantitative descriptive method with an exploratory approach using the line transect technique at three observation stations, namely coastal forest and lowland forest areas within the CA, as well as lowland forest areas within the TWA. A total of nine observation plots measuring 20 × 20 m were established. The results showed that tree species diversity in the western coastal forest of the CA, the lowland forest of Ciborok Block in the TWA, and the lowland forest of Cikamal Block in the CA was categorized as moderate, with Shannon-Wiener diversity index (H’) values ranging from 1.029 to 1.742 and a uniform distribution pattern. Overall, each observation station exhibited a distinctive vegetation composition, resulting from varying interactions between biotic and abiotic components. Keywords: Tree Species Diversity, Tree Distribution Pattern, Shannon-Wiener Index, Nature Reserve, Recreational Park