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Impact of heat stress responsive factors on growth and physiology of cotton (Gossypium hirsutum L.).
Saleem, Muhammad Asif; Malik, Waqas; Qayyum, Abdul; Ul-Allah, Sami; Ahmad, Muhammad Qadir; Afzal, Hammad; Amjid, Muhammad Waqas; Ateeq, Muhammad Farjad; Zia, Zia Ullah.
Afiliação
  • Saleem MA; Department of Plant Breeding and Genetics, Bahauddin Zakaryia University, Multan, Pakistan. drasifsaleem@bzu.edu.pk.
  • Malik W; Department of Plant Breeding and Genetics, Bahauddin Zakaryia University, Multan, Pakistan.
  • Qayyum A; Department of Plant Breeding and Genetics, Bahauddin Zakaryia University, Multan, Pakistan.
  • Ul-Allah S; College of Agriculture, Bahauddin Zakariya University, Bahadur Sub-campus, Layyah, Pakistan.
  • Ahmad MQ; Department of Plant Breeding and Genetics, Bahauddin Zakaryia University, Multan, Pakistan.
  • Afzal H; Department of Plant Breeding and Genetics, Bahauddin Zakaryia University, Multan, Pakistan.
  • Amjid MW; State Key Lab. of Crop Genetics & Germplasm, Nanjing Agriculture University, Nanjing, China.
  • Ateeq MF; Department of Plant Breeding and Genetics, Bahauddin Zakaryia University, Multan, Pakistan.
  • Zia ZU; Cotton Research Institute, Multan, Pakistan.
Mol Biol Rep ; 48(2): 1069-1079, 2021 Feb.
Article em En | MEDLINE | ID: mdl-33609263
Pakistan ranked highest with reference to average temperatures in cotton growing areas of the world. The heat waves are becoming more intense and unpredictable due to climate change. Identification of heat tolerant genotypes requires comprehensive screening using molecular, physiological and morphological analysis. Heat shock proteins play an important role in tolerance against heat stress. In the current study, eight heat stress responsive factors, proteins and genes (HSFA2, GHSP26, GHPP2A, HSP101, HSC70-1, HSP3, APX1 and ANNAT8) were evaluated morphologically and physiologically for their role in heat stress tolerance. For this purpose, cotton crop was grown at two temperature conditions i.e. normal weather and heat stress at 45 °C. For molecular analysis, genotypes were screened for the presence or absence of heat shock protein genes. Physiological analysis of genotypes was conducted to assess net photosynthesis, stomatal conductance, transpiration rate, leaf-air temperature and cell membrane stability under control as well as high temperature. The traits photosynthesis, cell membrane stability, leaf-air temperature and number of heat stress responsive factors in each genotypes showed a strong correlation with boll retention percentage under heat stress. The genotypes with maximum heat shock protein genes such as Cyto-177, MNH-886, VH-305 and Cyto-515 showed increased photosynthesis, stomatal conductance, negative leaf-air temperature and high boll retention percentage under heat stress condition. These varieties may be used as heat tolerant breeding material.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fotossíntese / Folhas de Planta / Resposta ao Choque Térmico / Gossypium Tipo de estudo: Prognostic_studies País/Região como assunto: Asia Idioma: En Revista: Mol Biol Rep Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Paquistão País de publicação: Holanda

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fotossíntese / Folhas de Planta / Resposta ao Choque Térmico / Gossypium Tipo de estudo: Prognostic_studies País/Região como assunto: Asia Idioma: En Revista: Mol Biol Rep Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Paquistão País de publicação: Holanda