Browsing Research Articles (Biotechnology) by Author "Ludidi, Ndiko"
Now showing items 1-14 of 14
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Assessment of genetic diversity in Tunisian populations of Medicago polymorpha based on SSR markers
Haddoudi, Loua; Hdira, Sabrine; Ludidi, Ndiko (Instituto de Investigaciones Agropecuarias, 2021)Medicago polymorpha L. is a herbaceous legume that can be a useful pasture crop, especially in Mediterranean climates. This study aimed to analyze the genetic variation in five populations of M. polymorpha collected from ... -
Capacity to control oxidative stress-induced caspase-like activity determines the level of tolerance to salt stress in two contrasting maize genotypes
Keyster, Marshall; Klein, Ashwil; Du Plessis, Morné; Jacobs, Alex; Kappo, Abidemi; Kocsy, Gábor; Galiba, Gábor; Ludidi, Ndiko (Springer, 2013)The response of two maize (Zea mays L.) genotypes, named GR (salt-tolerant) and SK (salt-sensitive), to salt stress (150 mM NaCl) was investigated under controlled environmental growth conditions. Genotype SK experienced ... -
Common bean as a potential crop for future food security: an overview of past, current and future contributions in genomics, transcriptomics, transgenics and proteomics
Nadeem, Muhammad Azhar; Yeken, Mehmet Zahit; Ludidi, Ndiko (Taylor & Francis Open Access, 2021)Common bean is an important legume crop having high quality protein, micronutrients, vitamins and antioxidants, which makes it a “grain of hope” for poor communities. Hence, a good number of breeding activities have been ... -
Comparative analysis of responses to field salinity stress in contrasting soybean accessions highlights NaCl exclusion in leaves as a key mechanism for salinity stress tolerance.
Akanbi, Musa; Egbichi, Ifeanyi; Ludidi, Ndiko (JOURNAL OF OASIS AGRICULTURE AND SUSTAINABLE DEVELOPMENT, 2021)Salinity is one of the main limitations to legume productivity in many regions of the world and it is estimated that 50% of all arable land will become affected by salinity by 2050. The impact of field salinity on soybean ... -
Drought and exogenous abscisic acid alter hydrogen peroxide accumulation and diferentially regulate the expression of two maize RD22-like genes
Phillips, Kyle; Ludidi, Ndiko (Nature Research, 2017)Increased biosynthesis of abscisic acid (ABA) occurs in plants in response to water defcit, which is mediated by changes in the levels of reactive oxygen species such as H2O2. Water defcit and ABA induce expression of ... -
Evaluation of the morpho-physiological, biochemical and molecular responses of contrasting medicago truncatula lines under water deficit stress
Haddoudi, Loua; Hdira, Sabrine; Ludidi, Ndiko (MPDI, 2021)Medicago truncatula is a forage crop of choice for farmers, and it is a model species for molecular research. The growth and development and subsequent yields are limited by water availability mainly in arid and semi-arid ... -
Genetic variation in responses to salt stress in Tunisian populations of Medicago ciliaris
Aloui, Meriem; Mahjoub, Asma; Ludidi, Ndiko (MDPI, 2022)Soil salinity is one of the most serious environmental factors affecting crop productivity around the world. We used a morpho-physiological approach to investigate the salt responses of four Tunisian natural populations ... -
Identification of a novel protein with guanylyl cyclase activity in Arabidopsis thaliana
Ludidi, Ndiko; Gehring, Chris (Elsevier, 2003)Guanylyl cyclases (GCs) catalyze the formation of the second messenger guanosine 3 ,5 -cyclic monophos- phate (cGMP) from guanosine 5 -triphosphate (GTP). While many cGMP-mediated processes in plants have been reported, ... -
Inhibition of NOS- like activity in maize alters the expression of genes involved in H2O2 scavenging and glycine betaine biosynthesis
Phillips, Kyle; Majola, Anelisa; Gokul, Arun; Keyster, Marshall; Ludidi, Ndiko; Egbichi, Ifeanyi (Nature Publishing Group, 2018)Nitric oxide synthase-like activity contributes to the production of nitric oxide in plants, which controls plant responses to stress. This study investigates if changes in ascorbate peroxidase enzymatic activity and ... -
Modulation of antioxidant enzyme activities and metabolites ratios by nitric oxide in short-term salt stressed soybean root nodules
Egbichi, I.; Keyster, Marshall; Jacobs, Alex; Klein, Ashwil; Ludidi, Ndiko (Elsevier, 2013)Several abiotic factors cause molecular damage to plants either directly or through the accumulation of reactive oxygen species such as hydrogen peroxide (H2O2). We investigated if application of nitric oxide (NO) donor ... -
Morpho-physiological, biochemical, and genetic responses to salinity in medicago truncatula
Hdira, Sabrine; Haddoudi, Loua; Ludidi, Ndiko (MDPI, 2021)We used an integrated morpho-physiological, biochemical, and genetic approach to investigate the salt responses of four lines (TN1.11, TN6.18, JA17, and A10) of Medicago truncatula. Results showed that TN1.11 exhibited a ... -
Nitric oxide (NO) regulates the expression of single-domain cystatins in glycine max (soybean)
Keyster, Marshall; Adams, Ruqaiyah; Klein, Ashwil; Ludidi, Ndiko (Southern Cross Publishing, 2013)Plant cystatins inhibit cysteine proteases and are important in regulating plant development and plant responses to biotic and abiotic stress. Furthermore, nitric oxide plays a signaling role in regulating plant responses ... -
Nitric oxide affects salt-induced changes in free amino acid levels in maize
Boldizsár, Ákos; Simon-Sarkadi, Livia; Keyster, Marshall; Ludidi, Ndiko (Elsevier, 2013)It was assumed that salt-induced redox changes affect amino acid metabolism in maize (Zea mays L.), and this influence may be modified by NO. The applied NaCl treatment reduced the fresh weight of shoots and roots. This ... -
Variability in Responses to Phoma medicaginis Infection in a Tunisian Collection of Three Annual Medicago Species
Badri, Mounawer; Ayadi, Amina; Mahjoub, Asma; Ludidi, Ndiko (Korean Society of Plant Pathology, 2023)Spring black stem and leaf spot, caused by Phoma medicaginis, is an issue in annual Medicago species. Therefore, in this study, we analyzed the response to P. medicaginis infection in a collection of 46 lines of three ...