Skinning Injury Responses in Sweetpotato

  • Jollanda Effendy Plant Breeding and Biotechnology Study Program, School of Graduate Studies, IPB University, Dramaga Campus, Jl. Raya Dramaga, Bogor 16680, Indonesia
  • Don R LaBonte School of Plant, Environmental, and Soil Sciences, Louisiana State University Agricultural Center. 131 J.C. Miller Hall, Baton Rouge, LA 70803, USA
  • Darda Efendi Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Dramaga Campus, Jl. Raya Dramaga, Bogor 16680, Indonesia
  • Nurul Khumaida Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Dramaga Campus, Jl. Raya Dramaga, Bogor 16680, Indonesia
  • Gustaaf A Wattimena Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Dramaga Campus, Jl. Raya Dramaga, Bogor 16680, Indonesia
Keywords: gene expression, Ipomoea batatas, lignification, postharvest loss, wounding


In sweetpotatoes (Ipomoea batatas L. Lamb), the loss of skin from the surface of the storage roots is known as skinning injury. It is responsible for significant postharvest loss resulting from moisture increase and weight reduction, wrinkling, and susceptibility to pathogen attack. Reduced root weight by water loss is associated with a higher rate of rot predominantly occurred in the developing and underdeveloped countries which can count of 8-20% of postharvest loss. Plants have different adaptation to protect themselves against skinning injury. Lignification, suberization, and increased sugar at the wound site have been shown to be correlated with wound healing. Changing in gene expressions have been associated with skinning injury. Genes associated in the biosynthesis of lignin and suberin, protein fate, cell-wall modification, transcription and protein synthesis, and stress responses and defense have been associated with skinning injury responses in plants. Understanding the skinning injury responses and how to regulate them can be used to produce a more desirable plant resistant to skinning injury. This paper especially reviews and discusses skinning injury responses in sweetpotato, a root crop which product may severely be affected by skinning injury.

Keywords: gene expression, Ipomoea batatas, lignification, postharvest loss, wounding



Pada ubi jalar (Ipomoea batatas L. Lamb), cedera kulit adalah hilangnya kulit dari permukaan umbi. Cedera kulit ini bertanggung jawab atas kerugian pascapanen yang signifikan akibat peningkatan laju kelembaban dan penurunan berat umbi, pengerutan, dan kerentanan terhadap serangan patogen. Berat umbi yang berkurang karena kehilangan air dikaitkan dengan tingkat pembusukan yang lebih tinggi, terutama terjadi di negara-negara berkembang dan yang kurang berkembang dengan kehilangan hasil panen umbi 8-20%. Tanaman memiliki adaptasi yang berbeda untuk melindungi diri dari cedera kulit. Lignifikasi, suberisasi, dan peningkatan gula di lokasi pelukaan telah terbukti berkorelasi dengan penyembuhan luka. Perubahan ekspresi gen telah dikaitkan dengan cedera kulit. Gen-gen yang terlibat dalam jalur biosintesis lignin dan suberin, protein tujuan akhir, modifikasi dinding sel, transkripsi dan sintesis protein, serta respons stres dan pertahanan telah dikaitkan dengan respons cedera kulit pada tanaman. Memahami respons cedera kulit dan bagimana cara mengaturnya dapat digunakan untuk menghasilkan tanaman yang diinginkan yang tahan terhadap cedera kulit umbi. Paper ini secara khusus mengulas dan membahas respon cedera kulit pada ubi jalar, suatu tanaman umbian yang hasilnya sangat terpengaruh oleh cedera kulit.

Kata kunci: ekspresi gen, Ipomoea batatas, lignifikasi, kehilangan pascapanen, pelukaan


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Author Biographies

Jollanda Effendy, Plant Breeding and Biotechnology Study Program, School of Graduate Studies, IPB University, Dramaga Campus, Jl. Raya Dramaga, Bogor 16680, Indonesia

Jollanda Effendy earned her BSc in Agronomy from Pattimura University in 1990, her MSc degree in Plant Molecular Biology from Department of Biological Sciences, Faculty of Science, Simon Fraser University, Canada (CIDA Scholarship) in 2002, and MPhil degree in Plant Biology from Institute of Molecular Biosciences, Massey University, New Zealand (NZAid Scholarship) in 2007. She earned her PhD degree in 2015 from Bogor Agricultural University (IPB University) with the funding from Department of Higher Education (BPPS DIKTI).

Jollanda Effendy is a lecturer at Pattimura University, Faculty of Agriculture since 1992. She taught Genetics, Genetic Engineering, and Plant Breeding for Stress Environments in Department of Agronomy. During her study in the IPB, in 2011, she was awarded a Borlaug Fellowship (USDA-FAS) as a Visiting Research Associate at School of Plant, Environmental, and Soil Science, Louisiana State University Agricultural Center (LSU AgCenter) from July 23 to September 14, 2011 in the United States of America, to study skinning injury in sweetpotato. In 2013, she went back to the LSU AgCenter through a Sandwich Program Fellowship from DIKTI to continue her PhD research in skinning injury and curing properties of two cultivars of sweetpotato from September 30, 2013 to February 28, 2014.

Jollanda Effendy PhD work has been presented in Posters in Plant and Animal Genome XX Meeting (2012) in San Diego, 72nd Annual Meeting Southern Region American Society for Horticultural Science (2012), and the American Society for Horticultural Science Conference in New Orleans from 4-7 August 2015 in the US. She also gave oral presentations in SEAMEO Advances in Tropical Genomics: Conservation and Sustainable Utilization of Tropical Biodiversity (2011) and the International Conference on pre-Breeding and Gene Discovery (2014) Conferences in Bogor, Indonesia. For her PhD research, she has published in the Journal of the American Society for Horticultural Science (JASHS) in 2013, Journal of Agronomy Indonesia (JAI) in 2017, and Biodiversitas Journal in 2019). She is the first author in those three publications and as a corresponding author in Biodiversitas Journal.

Don R LaBonte, School of Plant, Environmental, and Soil Sciences, Louisiana State University Agricultural Center. 131 J.C. Miller Hall, Baton Rouge, LA 70803, USA

Don R. LaBonte - Prosfessor, Breeding and Genetics - Undergraduate Coordinator

B.S. Eastern Illinois University
M.S. Eastern Illinois University
Ph.D. University of Illinois 

Research Area:
Development of new sweetpotato cultivars; sweetpotato molecular genetics; disease and insect resistance

Educational Program:
HORT 3000
HORT 7071
HORT 7913

Darda Efendi, Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Dramaga Campus, Jl. Raya Dramaga, Bogor 16680, Indonesia

Department of Agronomy and Horticulture, Faculty of Agriculture



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How to Cite
EffendyJ., LaBonteD., EfendiD., KhumaidaN., & WattimenaG. (2021). Skinning Injury Responses in Sweetpotato. JURNAL BUDIDAYA PERTANIAN, 17(1), 1-8.