Q: Given a passage with a context and an answer, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.
Context: The members of the patatin-related phospholipase subfamily III (pPLAIIIs) have been implicated in the auxin response. However, it is not clear whether and how these genes affect plant and cell morphogenesis. Here, we studied the roles of the patatin-related phospholipase pPLAIII in auxin-responsive cell morphology and organ size in Arabidopsis and Brassica napus.', 'We show that overexpression of pPLAIII inhibited longitudinal growth but promoted transverse growth in most organs of Arabidopsis and Brassica napus. Compared to wild-type plants, pPLAIII-KO plants exhibited enhanced cell elongation in hypocotyls, and pPLAIII-OE plants displayed broadened radial cell growth of hypocotyl and reduced leaf pavement cell polarity. For the hypocotyl phenotype in pPLAIII mutants, which resembles the "triple response" to ethylene, we examined the expression of the ACS and ACO genes involved in ethylene biosynthesis and found that ACS4 and ACS5 were up-regulated by 2.5-fold on average in two OE lines compared with WT plants. The endogenous auxin distribution was disturbed in plants with altered pPLAIII expression. pPLAIII-OE and KO plants exhibited different sensitivities to indole-3-acetic acid-promoted hypocotyl elongation in both light and dark conditions. Gene expression analysis of auxin-induced genes in the dark showed that OE plants maintained a higher auxin response compared with WT and KO plants after treatment with 1 M IAA for 12 h. Following treatment with 10 M IAA for 30 min in the light, early auxin-induced genes were significantly up-regulated in two OE plant lines.
Answer: These data suggest that the PLAIII gene plays an important role in cell morphology and organ size through its involvement in the regulation of auxin distribution in plants.
A:
Does patatin-related phospholipase pPLAIII influence auxin-responsive cell morphology and organ size in Arabidopsis and Brassica napus?