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From curiosity to contribution: A PhD journey in Plant Stress Biology

08 April 2025 | Story Precious Shamase | Photo Kaleidoscope Studios

Sellwane Moloi — Sellwane Jeanette Moloi celebrates graduating with a PhD in plant stress biology, contributing vital research toward global food security through drought-tolerant wheat studies.

Embarking on a PhD is a transformative journey, one filled with intellectual challenges, personal growth, and the potential to contribute meaningfully to one's field. For Sellwane Jeanette Moloi – who has graduated with her PhD on Friday 4 April during the afternoon session – the path was illuminated by a deep fascination with plants and a determination to address the critical issue of global food security.

A spark of curiosity

"The initial spark came from a deep curiosity about plants," Moloi shared. "I was intrigued by how plants function and the key mechanisms that help them survive when exposed to various environmental stress factors. Learning different techniques used to study and analyse plant responses to environmental factors made me even more intrigued." This curiosity fuelled a rigorous exploration into plant stress biology, focusing on how wheat thrives under drought conditions.

Navigating the challenges

Reflecting on the experience, however, the PhD journey was not without its hurdles. "One of the most challenging aspects was staying motivated and managing pressure," Moloi confessed. "Setbacks and slow progress can also be overwhelming." Overcoming these obstacles required a strategic approach: "I had to break down larger tasks into manageable tasks and also seek support from my supervisors."

Doubts inevitably arose, especially when experiments did not go as planned. "There were moments when I asked myself what I had actually gotten myself into," she admitted. However, the unwavering support of supervisors, colleagues, friends, and family provided the necessary reassurance. "They always assured me things would work out; I needed to hang in there."

Key discoveries and achievements

Amid the challenges, significant discoveries were made. Notably, Moloi found that a drought-tolerant wheat variety suppressed photosynthesis as a potential strategy to avert oxidative stress damage, maintaining cell membrane integrity during stressful conditions. This unexpected turn stressed the complexity of plant survival mechanisms.

Moloi’s dedication and hard work culminated in significant achievements, including winning the best PhD poster in plant physiology at the 46th South Africa Association of Botanists Conference in 2020, 3rd Prize at the University of Johannesburg Postgraduate Symposium in 2023 and publishing two research articles in high-impact journals. These accomplishments are a testament to her research prowess and contribution to the field.

Developing essential skills

Beyond the research itself, the PhD journey fostered critical skills vital for future success. ‘Critical thinking, logical reasoning, and problem-solving’ were highlighted as key takeaways. "As a PhD student, your mind is constantly engaged in critically analysing results and providing logical reasoning. I believe these skills are valuable in tackling certain situations and providing solutions to problems."

Balancing life and research

Balancing research with other aspects of life proved challenging. "That was challenging, but I created a schedule that worked for me," the graduand explained. "This included dedicating certain days (weekends or holidays) or hours to specific tasks, such as lab work or writing. One thing I would advise a PhD student is that they should make time to rest to avoid burnout."

Contribution to food security

Moloi's research holds significant implications for global food security, a pressing issue in the face of climate change and a growing population. "I hope my research will provide insight into how wheat as a cereal crop thrives under drought stress conditions, and the information can be used by plant breeding initiatives in developing more drought-tolerant crops," she stated. "The opportunity to contribute to the field of plant stress biology – my research focuses on understanding plant response mechanisms under drought, and acquiring such information can address issues related to global food security."

Advice for future PhD candidates

For students embarking on their PhD journey, Moloi offered valuable advice: "This degree requires one to be highly motivated and ask for help whenever there are setbacks. There will always be setbacks in research; you need to go back to the drawing board and look for solutions." She also emphasised the importance of seeking support for mental and emotional well-being. "It is okay to feel overwhelmed; the work can be too much at times. Students need to ask for help. We have professionals on campus who can assist with mental or emotional issues."

Furthermore, Moloi shared personal lessons: "Time management and prioritising important tasks. I also learned that it is important to allow yourself to rest. This degree can affect your mental or emotional health." And a candid reflection: "I did not have much of a social life, and I spent most of my time in the lab."

Looking ahead

With a PhD in hand, Moloi aspires to become an expert in her field, collaborating with other researchers and mentoring future students. Her journey exemplifies the dedication, resilience, and intellectual curiosity required to excel in academia and contribute to addressing pressing global challenges.

The university provided essential support throughout her studies, ensuring access to facilities even during the COVID-19 pandemic. "I always had access to the facilities on campus to do my research, even during the COVID-19 pandemic."

Celebrating milestones along the way was crucial, with fellow postgraduates sharing in each other's achievements. "My fellow postgraduates and I often went out for lunch to celebrate everyone's achievements." And the support system was extensive: "Everyone – family, supervisors, friends, and colleagues.”

News Archive

Publication on indigenous knowledge systems

2005-10-21

Dr Otsile Ntsoane (acting Director: IKS, Department of Science and Technology) and Prof Philip Nel (Director: Africa Studies at the UFS and guest editor of the publication) at the launch of the publication

UFS launches most comprehensive publication on indigenous knowledge systems
A unique collection of essays on Indigenous Knowledge Systems (IKS) was launched yesterday (20 October 2005) by the University of the Free State’s (UFS) Programme of Africa Studies.

The essays are published as a special edition of INDILINGA, the African Journal for Indigenous Knowledge Systems and is an outcome of the colloquium on Indigenous Knowledge Systems that was presented last year by the UFS Director of Africa Studies in cooperation with the National Research Council.

“The amount and diversity of materials on IKS brought together under one cover is unique as there are no other South African publications of this magnitude on this issue. It contains papers of international experts on IKS such as Prof Fritz Wallner from Austria and Prof Gayatri Spivak, foremost postcolonial theorist from India,” said Prof Philip Nel, Director of Africa Studies and guest editor of the publication.

“The publication is a rich source field for students and scholars to exploit because most of the sources quoted in the articles are recent, fresh and relevant. The contributors are largely people responsible for managing, fostering and studying IKS in a responsible manner,” said Prof Nel.

“An added value of the publication is the inclusion of the policy document on IKS that was adopted by Cabinet in November 2004,” said Prof Nel.

“Millions of people in South Africa are faced with the painful choice of abandoning their heritage. In this choice, the study and management of IKS has a major role to play; on the one hand, to encourage as much assimilation of traditional knowledge as possible into the modern systems, and on the other hand to provide a “language” and a “grammar” for indigenous people through which they can access modernity,” said Prof Nel.

The IKS debate involves questions of African identity, protection of indigenous communities and practices, political aspects as well as the scientific integrity of the enterprise.

The publication displays the range of burning questions that have to be resolved in this field such as mainstreaming IKS in academic debate and practice, recognition and protection of the knowledge holders, bio-prospecting and bio-piracy, bio and ethnic healing, lack of textbooks and field manuals, etc and will prove worthwhile for future researchers.

“One of the main reasons for publishing this volume is the fact that IKS should be studied not only to provide a sense of pride in the past, or to engender respect for indigenous peoples, but also to enable people in indigenous mind sets to make a better transition into the world of science and technology,” said Prof Nel.

The guest speaker at the launch was Dr Otsile Ntsoane, acting Director of IKS at the Department of Science and Technology. In his speech Dr Ntsoane stressed the symbolic and concrete value of the publication. “The publication can have a great social impact and the research results can contribute to chancing the economic landscape of South Africa,” he said.

The publication can be purchased at R150 per copy. For more information, Ms Steffi Cawood, Programme Coordinator for Africa Studies at the UFS can be contacted at (051) 401-2614.

Media release
Issued by:Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
21 October 2005

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