Pola Akumulasi Prolin dan Poliamin Beberapa Aksesi Tanaman Terung pada Cekaman Kekeringan

  • Siti Kurniawati Pusat Penelitian Bioteknologi, Lembaga Ilmu Pengetahuan Indonesia Jl. Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia
  • Nurul Khumaida Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
  • Sintho Wahyuning Ardie Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
  • N. Sri i Hartati Pusat Penelitian Bioteknologi, Lembaga Ilmu Pengetahuan Indonesia Jl. Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia
  • Enny Sudarmonowati Pusat Penelitian Bioteknologi, Lembaga Ilmu Pengetahuan Indonesia Jl. Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia
DOI: https://doi.org/10.24831/jai.v42i2.8432

Abstract

ABSTRACT Drought stress is one of the major limiting factors for plant growth and production. Therefore, the mechanism of drought tolerance is important to be studied. Eggplant (Solanum spp.) is relatively tolerant to drought stress compared to other member of Solanaceae family. The objective of this study was to study the mechanism of drought tolerance in eggplant related to accumulation pattern of proline and polyamines. Seven eggplant accessions were drought stressed for 21 days and rewatered for the following next 7 days. Drought stress treatment significantly decreased the soil water content and reduced plant height of all accessions. Eggplant responded the drought stress by reducing stomatal density and stomatal opening to reduce transpiration rate. Drought stress also induced proline and polyamine (PA) accumulation in the leaf tissues. These accumulations started at 14-days after drought stress period when soil water content less than 20% and reached their peaks at 21 days after drought stress. The highest level of proline (134.70 μmol g-1) and that of putrescine (20.836 ng g-1)  could  be used as indicators for eggplant drought stress condition. 
Keywords: physiological responses, polyamine (PA), proline, putrescine, stomata
Published
2014-09-04
How to Cite
KurniawatiS., KhumaidaN., ArdieS. W., HartatiN. S. i, & SudarmonowatiE. (2014). Pola Akumulasi Prolin dan Poliamin Beberapa Aksesi Tanaman Terung pada Cekaman Kekeringan. Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy), 42(2). https://doi.org/10.24831/jai.v42i2.8432
Issue
Vol. 42 No. 2 (2014): Jurnal agronomi indonesia
Section
Articles